Maserati GranTurismo MC Stradale 2011 Technical Presentation Manual - PDF DOWNLOAD

Technical Presentation January 2011

Training Documentation for Maserati Service Network

GranTurismo MC Stradale

Introduction

GranTurismo MC Stradale Technical Presentation

Introduction The fastest, lightest and most powerful car in the Maserati range inspired by the Maserati Corse experience in the Maserati Trofeo and FIA GT4 championship.

Maserati, on the basis of the well performing GranTurismo S and thanks to the experience on the racetrack with the Trofeo and GT4 version, is debuting with the GranTurismo MC Stradale. This model makes large use of the Maserati Corse experience, as clearly stressed by the name.

Therefore it represents the real link with the racing environment and shows Maserati's ability to develop a product both for road and racetrack use.

This document was drawn up to provide the Maserati technicians with essential information that will allow them to diagnose and perform the necessary service and repair operations on the vehicle. It provides an overview of all the technical aspects of the vehicle and describes in greater detail the systems that distinguish it from the GranTurismo S.

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GranTurismo MC Stradale

Index

Index •

Introduction

2

•

Index

3

•

Vehicle overview

4

•

Technical Introduction: 0. General information 1. Engine 2. Clutch 3. Transmission 4. Braking system 5. Driving Controls 6. Suspension and Wheels 7. Safety components 8. Electrical Systems and Devices 9. Bodywork

11 12 19 25 25 34 45 46 49 50 57

Times are changing, but not for everyone. Maserati MC12 – 2010 World Champion

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GranTurismo MC Stradale

Vehicle overview

Vehicle overview

Concept Responding to Maserati customer demands for a GranTurismo capable of balancing their road-driving needs with their race-driving desires, the GranTurismo MC Stradale incorporates the handling and aerodynamic lessons from all three of Maserati’s current racing programs.

Inspired by the race-winning GT1 (with the MC12), the GT4 and the GranTurismo MC Trofeo motorsport programs, the Maserati GranTurismo MC Stradale features: •

More power,

•

Reduced weight,

•

Reduced gearshift time

•

Razor-sharp handling

•

Top speed of over 300 km/h

With 331kW, its 4.7-litre V8 engine provides more power (450 hp instead of 440) vs the GranTurismo S, while its 510Nm torque result in a further 20Nm improvement. This contributes to slash the 0-100km/h sprint time, which the Maserati GranTurismo MC Stradale covers in just 4.6 seconds, and stretches the top speed to 301 km/h.

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GranTurismo MC Stradale

Vehicle overview

The GranTurismo MC Stradale’s race-bred heritage is highlighted by a 110kg weight reduction vs. the GranTurismo S, down to 1770kg. It mirrors the advantages that Maserati has in racing by retaining the optimal 48 : 52 weight distribution to ensure handling balance and even tyre wear.

It uses advanced electronics to slash gear-shift times from the upgraded MC Race Shift electro-actuated Transaxle gearbox to just 60 milliseconds.

The GranTurismo MC Stradale is also the first Maserati in history to have a dedicated Race driving mode to add to its upgraded Automatic and Sport modes in a simplified dash layout. It produces more aerodynamic downforce without producing more aerodynamic drag, it produces more power without using more fuel and it is more agile without sacrificing the GranTurismo S’s highly praised ride quality.

Exterior

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GranTurismo MC Stradale

Vehicle overview

Interiors The design of the rear area, the lightweight new race-style seats, a sporty leather/Alcantara combination for the upholstery, a redesigned instrument cluster and a new HMI button layout are the interior highlights of the GranTurismo MC Stradale.

To reinforce just how at home the GranTurismo MC Stradale will feel for race-style driving, the pedals are now drilled aluminium as standard.

While the rear seats have been removed, the style has not. The rear underdoor is trimmed in luxurious carpet, with the Maserati Trident stitched onto an Alcantara pad in the centre of the rear bulkhead.

Lighter than leather, Alcantara is largely used to trim the centre console, the armrest lid, the door armrests and handles and the curve above the instrument cluster.

Front sport seats The seats of the GranTurismo MC Stradale have been designed focusing on the high performance of the vehicle: they provide excellent support in all driving conditions and maintain the classic combination of a sports and luxury car in one.

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GranTurismo MC Stradale

Vehicle overview

The seats combine a carbon-fibre shell with high-tech padding and materials and even have the Trident logo stitched into the headrests in the same colour of the interior stitching. They offer manual adjustment to move the base backwards and forwards and to move the backrest angle.

They also offer three different height options, adjustable on demand.

With its sportier philosophy, the luxury hints of chrome and alloy have been removed from the GranTurismo MC Stradale in favour of a black look to reflect race-car interiors.

This extends, even, to the instrument cluster, where the traditional Maserati blue background colour has given way to black, with an entirely new typeface for the speedo and tacho dials.

MC Sport Line options The MC Sport Line carbon fibre parts are also available to customise the interior and the exterior of the GranTurismo MC Stradale together with the carbon fibre interior finishes, a carbon fibre gearshift paddle kit and other components in the same material.

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GranTurismo MC Stradale

Vehicle overview

The GranTurismo MC Stradale can also be stressed by the specific, custom-developed livery, with a Maserati Trident skewed at 45 degrees on the roof and the MC Stradale logo on both sides of the car.

The red and grey streaks of the MC signature underline the achievements of the aerodynamics engineers: the colour enters the brake inlet ducts and exits the vent in the front quarter panel before blending into the door.

Options: Roll bar upon request with four-point racing harness To reflect its more-heightened focus, the GranTurismo MC Stradale also has the option of a roll cage, which bolts in to the car.

This optional part is also available with a four-point racing seatbelt harness, homologated for road use, fastened on the rear cross member of the roll cage. The roll cage is protected with three Alcantara coverings in the same colour as the INTG areas.

The standard 3-point seat belt is in alternative to the RACY option. The 4-point harnesses are completed with the seat belt reminder function on both seats. Refined 4point seat belts covers in black alcantara with Maserati logo (stitched always in silver colour) are included in the RACY pack. Selecting the RACY option it is also possible to choose the colour of 4-point seat belts (ModisCS code: BELTS: red, black, blue).

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GranTurismo MC Stradale

Vehicle overview

The GranTurismo MC Stradale in the Maserati model range

The push for the GranTurismo MC Stradale came from existing GranTurismo and GranTurismo S customers who wanted a car that looked and felt like the GT4 and Trofeo race cars, but was road legal and just as comfortable as their existing models.

With the removal of the rear seats, the GranTurismo MC Stradale will be the only twoseat Maserati in the current line-up. It has been designed to give a deeply engaging, racing-car driving experience, regardless of what kind of road its drivers are on.

To achieve that and still maintain Maserati’s traditional values, it had to look, sound and feel like a racing car without sacrificing its road comfort.

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GranTurismo MC Stradale

From the race track to the road

From the race track to the road In the 1990s, the Ghibli Cup road car became the Ghibli Open Cup race car and a decade later the Maserati Trofeo gave birth to the GranSport MC Victory. At the pinnacle of Maserati’s road-to-race story, the FIA GT-winning MC12 was developed directly from the MC12 Stradale.

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GranTurismo MC Stradale

Technical Introduction

Technical Introduction

0.

1.

2.

3.

4.

5.

6.

7.

8.

9.

General information Engine Clutch Transmission Braking system Driving controls Suspensions and wheels Safety components Electrical systems and devices Bodywork

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GranTurismo MC Stradale

General information

0. General information

Model code:

M145 OL

Engine code:

F136YK

Place of production:

Modena - Italy

Production start:

December 2010

Start of sales:

From January 2011 (depending on the market)

VIN code and identification label positions

VIN code on the right-hand side of the chassis

Punched engine identification Number .

Identification label on the door opening

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Body colour identification label in proximity of the lid hinge

A. Manufacturer’s logo B. Homologation number C. VIN D. Maximum capacity E. Maximum capacity on the front axle F. Maximum capacity on the rear axle G. Engine type H. Vehicle version code L. Assembly number

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GranTurismo MC Stradale

General information

Specific market and emission standards

The GranTurismo MC Stradale is available in the following market versions: • • • • • •

Europe: Countries of the EU, Norway, Mexico, Argentina, Brazil, Chile, Taiwan, Russia, Baltic countries, Ukraine, Turkey, Lebanon, Venezuela, Philippines UK: UK, Hong Kong, Indonesia, Malaysia, Singapore, Thailand, South Africa USA 2 (Middle East): Arab Emirates, Saudi Arabia, Oman, Bahrain, Qatar, Kuwait, Egypt, Australia: Australia, New Zealand Japan: Japan China: China

Note: The GranTurismo MC Stradale is not commercialised in the markets USA / Canada / Korea.

Market Specification Europe UK USA USA2 (Middle East) Canada Australia China Japan

Emission Standard Euro 5 Euro 5 LEV - LEV II GSO 1680-1681-1682-1683-1684-1685 LEV - LEV II Euro 4 GB 18352.3 TRIAS 60-3-2006

Notes on the most important differences based on the specific market: •

Europe: in compliance with the European safety and emission standards The speedometer is in miles only for Great Britain and Ireland, while for the other markets it is in kilometres.

•

USA 2 ( Middle East): the same standard equipment as for Europe; speedometer with metric system, no passenger-side airbag deactivation switch.

•

Australia: in compliance with the Australian safety and emission standards; righthand drive; the same standard equipment as for the EU versions; speedometer with metric system, no passenger-side airbag deactivation switch.

•

Japan: in compliance with the Japanese safety and emission standards, available in right- and left-hand drive versions (on request of the customer); No passengerside airbag deactivation switch.

•

China: in compliance with the Chinese safety and emission standards, left-hand drive, speedometer with metric system; the same standard equipment as for the European version, Home Link not available.

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GranTurismo MC Stradale

General information

Dimensions, capacities and weights

Length: Width (without mirrors): Width (with mirrors): Height: Wheelbase: Front track: Rear track: Front overhang: Rear overhang: Luggage compartment capacity: Fuel tank capacity:

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4.933 mm 1.915 mm 2.056 mm 1.343 mm 2.942 mm 1.586 mm 1.590 mm 925 mm 1,066 mm 320 l 90 l

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GranTurismo MC Stradale

General information

Dimensions, capacities and weights

- 110 kg

48%

52%

Dry weight (UE version): Kerb weight (EU version): Kerb weight with driver: Full load weight: Gross weight: Weight distribution:

1.670 kg 1.770 kg 1.845 kg 1.920 kg 2.000 kg 48% front, 52% rear

Performances, fuel consumption and emissions Performance Maximum speed: Acceleration from 0 to 100 km/h: Stopping distance from 100 km/h to 0:

301 km/h 4.6 s 33 m

Consumption and emissions Urban cycle Extra-urban drive cycle Average fuel consumption CO2 emissions with urban drive cycle CO2 emissions with extra-urban drive cycle CO2 emissions in combined drive cycle

22.7 l/100 km 9.7 l/100 km 14.4 l/100 km 5290.0 g/km 2280.0 g/km 337.0 g/km

Note: The data refers to the European version of the MC Stradale

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GranTurismo MC Stradale

General information

Scheduled maintenance

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GranTurismo MC Stradale

General information

Scheduled maintenance (continued)

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GranTurismo MC Stradale

General information

Towing the vehicle In case it is necessary to tow the vehicle, screw the towing eye completely till the end into the towing eye attaching point. Put the gearbox in its neutral position ad disengage the EPB. Note: If the vehicle is towed with the front wheels raised and the ignition key in ON position, an error code will be stored in the NFR, which must subsequently be deleted.

Lifting and jacking Use the indicated points only for lifting or jacking of the vehicle:

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GranTurismo MC Stradale

Engine

1. Engine

The GranTurismo MC Stradale’s engine is a spin-off of the F136 YE and delivers 331kW at 7000 RPM, which is a 10 horsepower improvement vs. the GranTurismo S. There is also more torque, with a 20Nm jump from the GranTurismo’s strong 490Nm to 510Nm at 4750rpm, with a thicker torque curve at lower RPM. Most of the improvements are the result of the “Low Friction Program”, which involved a new design of the oil sump fluid dynamics and DLC (Diamond-Like Coating) of the hydraulic tappets and the camshaft lobes. The engine has thus gained in power and consumption efficiency and consequently produces lower emissions.

Engine features: •

90°, 8 V-cylinders entirely made of aluminium with a capacity of 4.7 litres and a wet sump lubrication system. High-efficiency combustion chambers.

•

Variable valve timing system (VVT) on the intake camshafts. The timing variators have an angular stroke of 50°.

•

Motronic ME7.1.1 engine control system.

•

The MC Stradale is equipped with an exhaust bypass system. The bypass valves flap are permanently open in Race mode and open from 4000 rpm in Sport mode.

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GranTurismo MC Stradale

Engine

F136YK engine technical data Displacement:

4.691 cc

Bore:

94 mm

Stroke:

84.5 mm

Compression ratio:

11.25:1

Maximum power:

331 kW (450 HP)

Maximum power

7.000 rpm

Maximum torque:

510 Nm

Maximum torque speed

4.750 rpm

Maximum engine speed:

7.500 rpm

Mechanical engine timing The mechanical engine timing values are the same for all the 4.7-litre engines with 50° timing variators.

Intake timing adjustment: Turn the engine to 15° beyond the Top Dead Centre, which corresponds to a piston stroke of 1.86 mm. The intake tappet descent must be 0.60 ± 0.08 mm.

Exhaust timing adjustment: With the crankshaft at the Top Dead Centre and the engine in overlapped position, the exhaust tappet descent must be 0.60 ± 0.08mm.

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GranTurismo MC Stradale

Engine

Engine components specifically for F136 YK •

Camshafts with specific surface “Tribofinishing”

•

Crankshaft with specific surface “Tribofinishing”

•

Specific connecting rods for different housing of the new bearings and the new bushing in the connecting rod small end

•

Specific lead-free bearings

•

Pistons with phosphating surface treatment on the skirt and specific segments

•

Oil pump with different pressure calibration, increased by 0.5 bar.

•

Lower crankcase modified for use of specific lamellar valves.

The most evident modification with the greatest impact on internal friction reduction is the development of a lamellar valve system in the lower part of the crankcase, whose purpose is to simulate the dry sump system even though not having scavenge pumps.

F136 version – standard wet sump

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F136 YK version - Trofeo Stradale

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GranTurismo MC Stradale

Engine

Lamellar valve positioning in the lower crankcase. The image below shows the four areas in the lower part of the crankcase where the lamellar valves are positioned.

Cross-section: The purpose of the four lamellar valves is to allow removing the excess oil in the upper area in which the crankshaft turns. By balancing the pressures, a simulated dry sump can be obtained.

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GranTurismo MC Stradale

Engine

“INA” timing variators The MC Stradale engine is equipped with INA timing variators introduced for the entire Maserati range as of engine number 150070. The timing variators have an angular excursion of 50°. For the timing values, see page 20.

If the component is replaced, operate as indicated for tightening:

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Lubricate the M14 bolt thread of with engine oil

•

Tighten to a torque of 50 Nm + 70°

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GranTurismo MC Stradale

Engine

Specific exhaust system with bypass valves

The redesigned and lighter tailpipes of the exhaust system create a richer, more intense and louder sound.

For the GranTurismo MC Stradale to come closer to the spirit of a racing car, the valves on the exhaust tailpipes have been maintained, which bypass the silencer and determine a stronger racing-like identity. In Race mode the valves are permanently open. In Sport mode, the valves open according to the engine RPM/accelerator pedal map starting from 2500 RPM and staying completely open over 4000 RPM. The exhaust tailpipes have also been positioned higher up and towards the centre of the vehicle, like for the GT4 and Trofeo competition models.

MODE

BY-PASS VALVES

AUTO

Closed

SPORT

According to the RPM/pedal map and open over 4000 RPM

RACE

Permanently open

Closed flaps: the exhaust gas flows into the silencer

Flaps open: the exhaust gas flows directly outside through the principal tube.

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GranTurismo MC Stradale

Transmission

Transmission To best exploit the performance of the new 450 HP V8 4.7 engine, the GranTurismo MC Stradale is equipped with an robotized gearbox, like the recent Maserati models with a more racing-like setup. This technology is part of the Maserati DNA and springs from the close ties the Trident has with the world of competition. Moreover, compared to the earlier versions, the system has been implemented with the RACE gearshift function coupled to the new “Superfast shift 2” (CV2 – Cambio Veloce 2) control system that further reduces the gearshift time during high-performance driving.

From a technical point of view, the robotized gearbox is an electrically-hydraulically controlled, mechanical transmission with a dry double-plate clutch and 6-speed gearbox (plus reverse) with triple-cone synchronizers on the 1st and 2nd gear, and double-cone on the others. The hydraulic servo control is controlled by the transmission ECU (NCR) through the paddles integral with the steering column according to a pattern whose ergonomics and effectiveness in driving at the limit has widely been tested.

The 6-speed gearbox comes in combination with a double-plate clutch, a solution deriving from the world of competitions and particularly suitable for more racing-style vehicles. The reduced dimensions of the clutch assembly (215 mm Ø) and the smalldiameter flywheel (240 mm Ø) significantly contain the weight of the assembly with evident reduction of the total engine inertia compared to a single-plate system. This type of setting allows more easily reaching the maximum engine RPM, faster gearbox response, faster gearshifting and, last but not least, better driving dynamics.

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GranTurismo MC Stradale

Transmission

Gearbox

The robotized gearbox is controlled through the gearshift paddles on the steering column and through the buttons on the centre console for 1st gear and reverse gear engagement and for activation of AUTO, SPORT and RACE modes.

KEY ON Æ AUTO

Auto

1

Sport

AUTO

Auto

1

Sport

SPORT

Race Race

Sport

Auto

1 Race RACE MC-Shift Plus

Selection of the three different driving modes: Auto, Sport and Race

Selecting one of these three modes, the gearbox software strategy implements an adjustment of the gear engaged, shifting one or two gears down depending on the mode selected.

This should give the driver the feeling that the vehicle responds quickly and promptly to his precise request for high performance driving.

The gear engaged is adjusted in relation to the transition of state controlled with the buttons as indicated on the next page.

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GranTurismo MC Stradale

Transmission

Driving mode selection: Auto Æ Sport, if the conditions are satisfied: One gear down Sport Æ Race, if the conditions are satisfied: One gear down Auto Æ Race, if the conditions are satisfied: Two gears down or one gear down Race Æ Sport, if the conditions are satisfied: One gear up Sport Æ Auto, if the conditions are satisfied: One gear up Race Æ Auto, if the conditions are satisfied: Two gears up or one gear up

Driving mode

Auto

Sport

Race

Gearshift times

240 ms

100 ms

60 ms

Automatic gearshifting

Yes

No

No

Manual gearshifting

Yes

Yes

Yes

Auto Mode The gearbox strategy requires that the vehicle always be started in automatic mode. In this operating mode, the gearshifts are completely automatic based on a gearshift map programmed in the Robotized Gearbox Node (NCR). The gearshift strategy has been defined to get the best compromise between driving comfort, contained consumptions and vehicle performance.

In this mode, the gear engaged is shown on the display together with the indication “AUTO”.

Note: When driving in automatic mode, gearshifting can still be manually controlled using the paddles on the steering wheel. When the driver uses the manual controls, the gearbox temporarily goes back to Manual mode; during this interval, the indication “AUTO” on the display flashes for about 5 seconds, after which the system goes back to Automatic mode.

“Auto easy-exit mode” strategy Every time the engine is started, the gearbox system is set to AUTO mode. If the engine is turned off with either SPORT or RACE mode set, the next time the engine is started, the “Auto easy-exit mode” strategy activates AUTO mode.

This condition is indicated by the word “AUTO” flashing on the display. This strategy allows the driver to go back to SPORT mode simply by first shifting gears manually (using the UP and DOWN paddles).

If the driver does not shift gears after two minutes of driving, the system automatically activates AUTO mode.

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GranTurismo MC Stradale

Transmission

SPORT mode

In SPORT mode, the gearbox control system follows a gearshift control strategy more focused on performance, with much shorter changing times between one gear and the next in relation to RPM and the accelerator pedal position.

In SPORT mode, the exhaust pneumatic valves are open. In addition to giving the engine a fuller and deeper sound, the lower counter pressure allows the engine to increase its RPM more rapidly and enhance its maximum power. Downshifting is accompanied by a more accentuated double-clutch effect.

Upon exceeding 4000 RPM and with the accelerator pedal 80% depressed, the fuel cut-off strategy is activated (engine turned off and fuel supply cut off) during gearshifting: this reduces the torque discharge time and the drop in engine RPM, resulting in faster gearshifting.

RACE mode Gearshifting in RACE mode is the most recent innovation of the robotized gearbox system. This mode exploits the elastic energy of the transmission devices and results in very fast gearshift times and absolutely outstanding performance. The result is a gearshift time which drops to 60 ms (measured as acceleration dip), a value that ensures the best sports handling and unrivalled driving emotions.

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GranTurismo MC Stradale

Transmission

In RACE mode, the GranTurismo MC Stradale can change gear in just 60 milliseconds (0.06 seconds) thanks to a precise control and gear selection optimisation. The MCRace gearshift is available only if specific conditions are met: a temperature suitable for all the vehicle systems has been reached and the accelerator pedal is at least 65% depressed. When these conditions occur, MC-Race fast gearshift is activated, which is indicated on the display with the red “MC-R” warning light.

RACE gearshift in 60ms. When?

Superfast gearshift is available in MANUAL RACE mode only.

When the vehicle F1 kit oil and engine coolant have reached the operating temperature and RACE mode has been selected, the letters MC-R illuminate on the display. This means that the following conditions have occurred: • Engine speed > 5000 RPM • Accelerator pedal depressed >65% • Lateral acceleration <0.9g • ASR not in operation • No wheel slipping

Activation of this strategy is communicated to the driver via the “MC-R” icon, which at first flashes on the display and then remains permanently illuminated.

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GranTurismo MC Stradale

Transmission

Sequential downshifting strategy Sequential downshifting of more gears can be obtained by setting one of the two manual modes, SPORT or RACE, and holding the DOWN lever pulled and the brake pedal depressed. The number of downshifts and the downshift speed depend on the braking duration and intensity.

Redesigned hydraulic actuator to reduce shifting times In order to further reduce the needed time for a gearshift operation it was necessary to develop a system that does not require a centering in the neutral position during the gearshifting.

This system involves removing the engagement actuator tappets and increasing the lever/fork clearance, consequently increasing the actuator stroke by 2mm.

Simplification of the system, thanks to the elimination of the centering tappets and relative seals, use of a piston shaft with only one seal, reduced machining work on the engagement shaft due to the elimination of the sealing seats.

The interface components have been redefined: •

Gearshift finger

•

Latch and relative drive bushings

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GranTurismo MC Stradale

Transmission

The following internal components of the hydraulic actuator have been modified: •

Engagement piston sleeve

•

Engagement shaft

•

Selection movement lobe

Quattroporte Duoselect, GranTurismo S

GranTurismo MC Stradale

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GranTurismo MC Stradale

Transmission

Self-learning

All the self-learning procedures of the GranTurismo S model remain unchanged, including “Fast gearshift”. This procedure should be performed after gear self-learning cycle and subsequently at KEY OFF /KEY ON. This self-learning procedure is required to self-learn the solenoid valve disengagement times.

It must be performed each time a gearshift structure needs to be self-learned.

This must be performed after self-learning of the gearshift structure and after removing the key.

The procedure is performed using the Maserati diagnostic tester with KEY ON in the same way as for gearshift structure self-learning.

You will hear 13 strokes (selection) followed by 3 engagements of 1st, 2nd, 3rd, 4th and 5th gear in sequence. 6th gear and Reverse will not be engaged.

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GranTurismo MC Stradale

Transmission

SERVICE OPERATIONS FOR VEHICLES EQUIPPED WITH THE SOFAST 4 GEARBOX CONTROL SYSTEM WITH SUPERFAST 2 (CV2) MASERATI M145 OL - All markets where it is sold HW CFC 301 (ECU hardware identical to Sofast III)

Action

Service operation required for SOFAST IV with CV2

Clutch replacement

•Clutch bleeding procedure • Calibration of DEIS parameters • Kiss point (integrates the clutch wear index reset operation and clutch configuration)

Gearbox replacement

• Self-learning • SuperFast gearshift self-learning

Hydraulic actuator replacement

• Hydraulic actuator bleeding • Self-learning • SuperFast gearshift self-learning

Solenoid valve replacement (SV 1-23-4-5)

• Gearbox actuator bleeding • Self-learning • SuperFast gearshift self-learning

Replacement of clutch solenoid valve EVF

• Clutch actuator bleeding • Calibration of DEIS parameters • Kiss point (integrates the clutch wear index reset operation and clutch configuration)

Pump replacement

• Hydraulic actuator bleeding

NCR replacement

• Software download • Calibration of DEIS parameters • Self-learning • SuperFast gearshift self-learning • Reading the closed clutch value from the replaced NCR and setting it on the new one • Autocalibration of the acceleration sensor offset • Kiss point

Acceleration sensor replacement or ABS unit replacement

• Autocalibration of the acceleration sensor offset

Note: It is in any case advisable to perform the self-leaning procedures (DEIS; SuperFast gearshift, accelerometer) during each service operation.

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GranTurismo MC Stradale

Braking system

4. Braking system The Maserati MC Stradale is the first Maserati equipped with a braking system with carbonceramic discs (CCM) on the four wheels as standard. This has various advantages compared to the conventional system. The greater braking efficiency allows reducing the stopping distance from 100 km/to 0 km/h from 35 to 33 metres.

•

Tandem brake master cylinder, vacuum brake servo (booster), separate hydraulic brake circuit with cross layout.

•

Front axle: Single-piece aluminium brake calipers with 6 pistons of different diameter. Ventilated and perforated brake discs obtained with CCM technology, diameter x thickness 380 x 34 mm. The single-piece brake calipers are more resistant to deformation than compound brake calipers, which means that lighter materials can be used, thus reducing the component weight. In addition, the brake calipers are more efficient at any operating pressure and the brake pedal stroke is hence shorter.

•

Rear axle: Single-piece aluminium brake calipers with 4 pistons of different diameter. Ventilated and perforated discs, diameter x thickness 360 x 32 mm.

•

Electronically-controlled "Drum in Hat" parking brake (EPB) with "auto-apply", "drive-away" and "pre-release" functions.

Material Disc dimensions (mm) Thickness (mm) Surface (Cm2) Effective radius (mm) Caliper type

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Front carbon 380 34 135 158.8 6 pistons

Rear carbon 360 32 77 152.2 4 pistons

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GranTurismo MC Stradale

Braking system

Carbonceramic discs have a carbon fibre structure which is properly directed and subjected to heavy stress inside the production mould, so that the discs produced are equipped with channels for heat dispersion. Subsequently, they undergo a carbonisation process in a kiln at approximately 1000°C in the presence of nitrogen and then to further processes, such as radial drilling of the braking surface.

Compared to the discs used in Formula One vehicles, the road vehicle discs are further processed by dipping them in a silicon bath, which makes them efficient also at low temperatures.

The application of this new braking system has contributed to improving all the braking performance parameters (enhanced deceleration/pedal load ratio, braking distances, fading resistance) and to considerably reducing unsprung weights.

Finally, the CCM system provides a weight reduction of approx. 50% vs. cast iron discs, because of the lower density of the ceramic material, and improves the vehicle overall performance, achieving friction coefficients of approx. 0.36 vs. 0.28 of cast iron systems. Being unsprung weights, they enhance the vehicle dynamics and improve driving comfort.

Compared to conventional systems, response times are improved and performance levels are maintained in the event of heavy-duty use. Among the most evident effects is the elimination of the fading effect, which affects the control feeling perceived on the pedal travel and load. In addition, the carboceramic discs have a practically unlimited life in normal conditions of use, with evident advantages in terms of costs.

In general, the new braking systems must be run in and that is why they only reach an optimal braking action after two or three hundred kilometres. The slightly reduced braking action must be set off by increased pressure on the brake pedal.

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GranTurismo MC Stradale

CAUTION

Braking system

The CCM braking surface and the drive housing form one single assembly that must not be separated, disassembled or modified (machining, etc.), under any circumstance. The discs are available from the Maserati Spare Parts Department complete with their own housing.

Minimum weight Progressive identification number

Each disc is identified with a progressive number etched onto the housing. This number allows tracing back to the process and product parameters.

MOVEMENT CCM is a composite ceramic material and is therefore extremely hard but, at the same time, "fragile”. As a result of this, greater caution is required and special care must be taken during handling and/or fitting operations in the vehicle.

During transportation and internal handling, the disc must be protected with a special polyethylene foam packing, which must be disposed of appropriately.

The following faults may be caused by incorrect handling : •

chipping and/or breakages

•

cracks

The causes of the faults may be: •

accidental blows

•

accidental falls

•

wrong use of instruments and tools and/or improper fitting procedures

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Braking system

•

Be extremely careful with the edges (knocking against the outside diameter and internal crown).

•

Do not use levers or screwdrivers to move the caliper pistons backwards when replacing the pads.

•

Do not hammer on the braking surface to remove the disc of the hub (if necessary a rubber hammer)

•

Avoid causing compression stress to the braking surface (by closing it in a vice or any other kind of equipment).

•

Do not use levers or screwdrivers in the ventilation channels to move or rotate the disc.

•

When handling and/or fitting the disc (without its protective packing), we recommend you use the centre hub as a gripping point.

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Braking system

Disc inspection Visually inspect the braking surfaces whenever the vehicle is brought to the workshop, so that major surface variations can be identified.

The wear condition of the brake discs must be checked each time the brake pads are replaced.

The wear condition of the discs is assessed by means of the following checks: •

Inspection after intensive use on the race track

•

Visual inspection of the porosity/roughness of the disc surface

•

Checking the disc weight loss

•

Checking the damage on the edges of the brake disc edges (damage caused by misuse)

DISC TO BE REPLACED

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DISC TO BE REPLACED

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Braking system

The CCM discs are to be replaced when one of the following conditions occur: 1. Reaching the weight loss limit 2. Accidental disc damage (impact, dropping, etc.)

3. Braking surface damage because the brake pad is worn out.

4. Reaching the comfort acceptability limit (noise, feeling on the brake pedal) 5. Excessive drop in performance The CCM discs are subject to wear only in extreme conditions of use (on the race track) or when the discs reach temperatures higher than a certain temperature range (>500°C). In these conditions, oxidation occurs in the carbon fibres in the CCM.

CHECKING THE DISC WEIGHT LOSS If subjected to extreme thermal stress, e.g. use on the race track, the disc braking surface may be heavily oxidised, to such an extent that the disc weight may be reduced.

If the vehicle is used in these conditions, the discs need to be weighed in order to ensure that the braking system is always in such conditions as to guarantee performance in perfect safety.

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Braking system

In order to reduce the measurement error to a minimum, the weight loss indications must be double-checked by visually inspecting the discs and taking the following precautions before weighing it: •Thoroughly clean the disc before making the measurement (clean out the ventilation holes and clean the housing) •Check the wear condition of the surface •Check for humidity (if found, dry the discs in an oven at 200°C for about 1h) Chipped discs, but not so badly that they need to be replaced, will not affect the disc weight (low density).

The CCM brake disc must be replaced when its weight is equal or lower to the MIN. weight shown on the brake disc housing.

In contrast to cast-iron discs, the thickness of the CCM disc braking surface is not indicative of the wear condition.

MAINTENANCE For proper functioning and to obtain the maximum CCM brake disc efficiency, the braking surface must be clean and free of any stains or grease and/or oil buildups.

This type of soiling may reduce the friction coefficient.

The deposits can be removed by cleaning the surface with solvents, such as acetone (C3 H6 O) or alcohol.

Do not use any kind of brake cleaner (trichloroethane).

If the pads have any stains or signs of oil and grease, use the same degreasers as used for the discs and/or lightly sand the surface with sandpaper.

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Braking system

REPLACING THE PADS

The pads must be replaced when the relative warning light comes on and/or when deemed necessary after inspection by a certified Maserati technician.

The pads must necessarily be run in as described below in order to guarantee perfect coupling with the disc.

Pad running-in cycle •

Following each pad replacement, the same must be run-in.

•

Accelerate the vehicle until reaching a speed of 100 km/h.

• Brake the vehicle, from 100 km/h to 10 km/h, with a deceleration approx. 0.3g, which corresponds to approx. 8.5 sec.

•

Repeat the above mentioned running-in cycle 17 times.

• Accelerate the vehicle until reaching a speed of 130 km/h • Brake the vehicle, from 130 km/h to 30 km/h, with a deceleration of approx. 0.5g/ 0.7g , which corresponds to approx. 8.5 sec.

• Repeat the above mentioned running-in cycle 5/6 times.

• If this cycle is duly performed, it will ensure proper functioning of the CCM brake disc, as for a new vehicle.

Pad and disc running-in cycle.

•Following each pad and disc replacement, the same must be run-in.

•Accelerate the vehicle until reaching a speed of 80 km/h •Brake the vehicle, from 80 km/h to 20 km/h, with a deceleration of approx. 0.3g (approx. 6 sec.)

•

Repeat the above mentioned running-in cycle 5 times. (approximately 6 seconds)

•

Accelerate the vehicle until reaching a speed of 130 km/h.

•

Brake the vehicle, from 130 km/h to 20 km/h, with a deceleration of approx. 0.5g

• Repeat the above mentioned running-in cycle 14 times. Running this cycle guarantees proper functioning of the CCM system like for a new vehicle.

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Braking system

Running-in cycle after brake pad and racing-type disc replacement.

• Following each pad replacement, the running-in cycle must be performed.

• Accelerate the vehicle until reaching a speed of 80 km/h • Brake the vehicle, from 80 km/h to 0 km/h, with a deceleration of approx. 0.3g.

• Repeat the above mentioned running-in cycle 5 times.

• Accelerate the vehicle until reaching a speed of 130 km/h • Brake the vehicle, from 130 km/h to 0 km/h, with a deceleration of approx. 0.5g • Repeat the above mentioned running-in cycle 15 times.

• Accelerate the vehicle until reaching a speed of 130 km/h • Brake the vehicle, from 130 km/h to 30 km/h, with a deceleration of approx. 0.7g which corresponds to a maximum time of approximately 4.0 sec.

• Cool down the system by driving 4 minutes at 80 km/h • Repeat the above mentioned running-in cycle 9 times.

• Accelerate the vehicle until reaching a speed of 200 km/h •

• •

Brake the vehicle, from 200 km/h to 30 km/h, with a deceleration of approximately 1.1g (ABS), which corresponds to maximum time of approximately 4.4 sec.

Cool down the system by driving 5 minutes at 80 km/h Repeat the above mentioned running-in cycle 3 times .

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Braking system

BRAKE CALIPER COLOURING AVAILABLE ON REQUEST

The Standard Brake Calipers: Titanium

Red (CALR)

Black (CALB) opt.

Yellow (CALY) opt.

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Braking system

ESC

The Maserati MC Stradale is equipped with ESC (Electronic Stability Control) antiyawing system, which incorporates all control systems: ABS, EBD, ASR and MSR).

This system controls all the dynamic functions of the vehicle in relation to braking, stability in a bend, and traction control. The different dynamics are controlled by various specific functions all integrated in the NFR (Bosch ESP 8.0): •

ABS (anti-lock braking system for the wheels during braking): it prevents the wheels from locking during braking

•

ASR (Anti-slip Regulation): prevents the wheels from slipping during acceleration.

•

EBD (Electronic Brake-force Distribution): guarantees ideal distribution of the brake force between the front axle and the rear axle based on the vehicle weight and the dynamic conditions.

•

MSR (Motor Schleppmoment Regelung): performs the electronic control function of the engine braking torque in downshift condition to guarantee vehicle stability.

•

MSP (ESP), (Maserati Stability Program): performs the individual control function of the brake of each wheel to guarantee vehicle stability in a bend.

•

HHC (Hill Holder Control): helps the driver during uphill starting preventing the vehicle from rolling back in the time between brake pedal release and accelerator pedal depression.

•

HBA (Hydraulic Brake Assist): assistance during emergency braking.

Hydraulic brake assist (HBA) •

Helps the driver in the event of emergency braking

•

Function integrated in the Bosch ESP 8.0 ECU (NFR)

•

It is based on information received from the hydraulic pressure sensor to measure how fast the driver depresses the brake pedal. When emergency braking, the brake pedal is in fact often depressed fast but not with sufficient force.

•

If an emergency braking condition is detected, the system increases the brake pressure by means of the hydraulic pump.

•

This function reduces the stopping distance in the event of emergency braking, thus increasing the safety level.

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GranTurismo MC Stradale

Driving controls

5. Driving controls

The driving controls, such as the steering system and the pedals, come from the GranTurismo models. The system features the following: •

Steering diameter (from pavement to pavement): 11.8 m.

•

Steering wheel height and depth manually adjustable: standard.

•

Steering wheel height and depth electronically adjustable: not available.

•

Electronically-controlled hydraulic brake servo assist (same tuning as the GranTurismo)

•

Multifunction steering wheel with gearshift paddles on the steering column, coming from the Quattroporte/GranTurismo models.

•

Several finishing options are available for the steering wheel: for the steering wheel rim there is a choice of different colours and materials.

The driving controls, such as the steering system and the pedals, derive from the GranTurismo models.

The steering wheel is available in a wide range of finishes and colours

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GranTurismo MC Stradale

Suspensions and wheels

6. Suspensions and wheels Wheel rims and tyres The flow-formed 20-inch wheels are not only lighter and unique to the GranTurismo MC Stradale, but they also fit into the Maserati design language, with the Trident neatly integrated into the double spokes.

MC Design SHINY TITAN RM38 (standard)

MC Design MATT GRAPHITE RM39

Standard wheels

Front wheel dimensions: Rear wheel dimensions:

Nettuno

Optional wheels

Rims 8.5J x 20" H2 , tyres 255/35 R20 Rims 10.5J x 20" H2 , tyres 295/35 R20

Note: 19'' wheels are not homologated for the Maserati MC Stradale.

Vehicle geometry: FRONT

REAR

255/35 ZR20

295/35 ZR20

2.4 bar

2.3 bar

8.5 J x 20”

10.5 J x 20”

- 1° +/- 0°10’

- 2°10’ +/- 0°10’

Toe-in

-2.2 +/- 0.4 mm

+4.4 +/- 0.4 mm

Caster

+4°15’ +/- 0°20'

Tyres Tyre pressure Wheels Camber

Total height Track

155 +/- 5 mm

140 +/- 5 mm

1586 mm

1590.8 mm

Wheelbase Steering angle

2942 mm Int. 33°/ext. 39°

Vehicle configuration under static load: maximum fluid levels, full of fuel (90 l) and 75+75 kg on the front seats.

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GranTurismo MC Stradale

Suspensions and wheels

The GranTurismo MC Stradale rides on a new, custom-developed tyre from the Italian tyre maker Pirelli – the same company that developed and supplies the tyres for the Trofeo GranTurismo MC. Designed to be at home both on the road and on the race track, the 20-inch Pirelli PZero Corsa tyres are slightly wider than the standard tyres on the GranTurismo S and offer even more grip.

255/35 ZR20 front

295/35 ZR20 rear

PZero Corsa Directional

PZero Corsa Asymmetrical

Tyre pressure for ROAD use

Tyre pressure for RACE TRACK use

2.4 bar Front

2.3 bar Rear

2.1 bar Front

2.0 bar Rear

Developed in conjunction with Maserati’s test engineers and based on the experience from the Trofeo championship, the new PZero Corsa tyres have been designed to move the handling-comfort balance of the GranTurismo S’s tyres further towards pure handling.

While the GranTurismo S already had good track performance, the new tyres have been developed to maximize grip in a very short time and, in concert with a more precise "feedback" feeling for the driver, to maintain that grip for as many laps as possible, thanks to rubber compounds derived from Pirelli’s racing experience.

The rear tyres have an asymmetric pattern with large tread blocks on the outside shoulder for high lateral grip.

NOTE: 19'' tyres are not homologated for the Maserati MC Stradale. Winter tyres are available: 245/35 – 20 front and 285/35 – 20 rear.

WINTER tyre pressure

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2.2 bar Front

2.2 bar Rear

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Suspensions and wheels

Suspensions

The vehicle is equipped with shock absorbing springs that are 8% more rigid than the GranTurismo S model, and adopts a damping system with high-performance calibration.

The vehicle is lower, the height reduced by 10 mm at the front and 12 mm at the rear.

The idea for this configuration derives from the experience in the Trofeo championship where the drivers highly appreciated the improved grip and the direct and intuitive driving sensation.

The diameter of the roll bars has also been increased with the front one now 25 mm and the rear one 23 mm. These two modifications have contributed to reducing the overall rolling angle.

Characteristics : •

Front: Quadrilateral with hub carrier and shock absorbers in forged aluminium, specific gas shock absorbers in steel, specific coaxial helical springs.

•

Rear: Quadrilateral with hub carrier and shock absorbers in forged aluminium, additional radius bar for toe-in control; specific gas dampers in aluminium, specific coaxial helical springs.

•

Front roll bar: 25mm Ø

•

Rear roll bar: 23mm Ø

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GranTurismo MC Stradale

Safety components

7. Safety components Airbag system:

1) NAB - Airbag node 9) Front left-hand Crash Zone Sensor 2) Passenger-side front airbag 10) Driver-side satellite crash sensor 3) Passenger-side front airbag deactivation switch (*) 11) Driver-side front seat belt pretensioner 4) Passenger- side front seat belt pretensioner (not available on 4-point seat belts) (not available on 4-point seat belts) 12) Airbag system failure warning light 5) Front right-hand Crash Zone Sensor.

13) Passenger’s airbag OFF warning light 6) Passenger-side satellite crash sensor 14) Driver-side front airbag 7) Passenger-side door-mounted airbag (Lamella bag) 15) Clock Spring 8) Driver-side door-mounted airbag (Lamella bag) 16) Diagnostics socket (*) Vehicles manufactured for the Japanese and Australian markets are not equipped with this device.

The GranTurismo MC Stradale is equipped with a double airbag for the driver and the front passenger. These airbags exploit a technology first used on the Quattroporte and subsequently also on the GranTurismo. It is an "intelligent" system that independently adjusts to the occupant’s height and controls airbag opening in the event of a collision.

The new passenger-side airbag with its "Low Risk Deployment" function is a component at the top of range for occupant protection and guarantees an excellent level of safety in head-collisions.

As well as improving passive safety, this new solution is also a major improvement in the styling of the upper panel of the passenger-side dashboard, now more linear thanks to the integrated airbag.

Note: The MC Stradale does not have side airbags in the seats.

Note: The MC Stradale is available with 4-point seat belts. In this case, the vehicle is not equipped with pretensioners. If the customer requests the optional 4-point seat belts at a later stage (on a vehicle where they are not fitted originally), a resistor should be fitted on both the pretensioner connectors to simulate their presence.

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Electrical systems and devices

8. Electrical systems and devices

MC Stradale Florence architecture

The Florence architecture of the MC Stradale's electric system is quite similar to that used in the GranTurismo S. The only differences are the following: •

Elimination of the NTP ECU (TPMS), not available on this model.

•

Elimination of the NCS ECU (Skyhook system), not available on this model.

•

Elimination of the NAG ECU (seats with memory), not available on this model.

(*) Notes: Front parking sensors are not available; the vehicle is equipped only with rear parking sensors fitted standard.

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GranTurismo MC Stradale

Electrical systems and devices

Adaptive Light Control

The already high effectiveness of the bixenon headlights has further been enhanced with the orientation function that improves illumination of the track and the surrounding areas with the resulting increase in the safety levels while driving at night or on winding routes.

The low-beam ECU reads the instantaneous information on steering and the steering angle as well as the driving speed and acts on special electric motors to turn the light cones.

Main characteristics:

•

The system is activated when the speed exceeds 5 km/h.

•

The maximum headlight rotation towards the inside of the bend is 15° and towards the outside 7.5° (always half).

•

From 90 km/h to 120 km/h the swivel angle is reduced;

•

Over 120 km/h and in reverse, the system is not activated for safety reasons.

Parking sensors: The vehicle is equipped standard only with rear parking sensors integrated in the rear bumper. Front parking sensors not available.

The icon of the car surrounded by symbols showing the distance from the obstacles (max/med/min) is displayed on the instrument panel. The symbols illuminate in three different colours based on the distance of the obstacles from the vehicle: max-green, med-yellow, min-red. An acoustic warning is sounded when the symbols light up.

Cruise control: When driving at a constant speed, Cruise Control is particularly useful, as it allows setting the cruising speed that will automatically be maintained without having to act on the accelerator pedal.

When the driver activates Cruise Control, the system automatically sets a special gearshift strategy taking the gradient of the road into account and performs the necessary calibration to guarantee maximum comfort and avoid unnecessary gearshifts.

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Electrical systems and devices

Maserati Multi Media System

The infotainment system onboard the Maserati GranTurismo MC Stradale derives from the new IT platform developed by Magneti Marelli.

A 7" high-resolution TFT colour display situated in the centre of the dashboard allows the user to view the CD player, the GPS navigation system (if the cartography is available), the radio and the onboard computer (travel information and vehicle settings). System performance has further been improved by using a 30GB automotive hard disk on which the entire cartography can be uploaded and which also offers a jukebox function instead of the CD player. On the one hand, the hard disk drive considerably reduces the trip calculation times and, on the other hand, allows storing up to 180 hours of music that can be copied directly from Audio CDs or downloaded to MP3 files through the USB port situated in the passenger-side glove compartment.

The system also allows using your own MP3 reader; in effect, most of the readers currently available on the market can be connected via the USB port so that you can listen to your favourite music while travelling.

The GPS navigation system with its large colour display and 3D graphic processor allows navigating with a very fetching perspective view.

The system is easy and intuitive to use thanks to the controls in the centre of the dashboard, and the most frequently used functions are accessible in full safety by means of the buttons on the multifunction steering wheel. Again from the safety point of view, the audio system, the navigation system and the telephone (if present) can be activated by means of a voice control system.

The “Text to Speech" synthesizing system (artificial reproduction of the human voice) further contributes to the driver’s safety as he or she can listen to SMS messages and TMC traffic information without being distracted by looking at the display.

The Multi Media System is equipped with Bluetooth technology, for mobile phone connection. This allows the user to make and receive calls through the speakers and manage the contact list through the Multi Media System.

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Electrical systems and devices

Bose Surround Sound system

The system is available on request. To play powerful and clear music, the Bose Surround Sound System has two separate bass sources. The double low-frequency sources are designed to work with the complete system and faithfully reproduce music in a wide frequency spectrum.

Conventional approaches to multiple bass sources may prove to be problematic. If the speaker is situated too close to the listener, the sound may be deafening; if it is too far away, the sound may be too weak. Improper positioning may cause some frequencies to distort, virtually killing the sound instead of boosting it.

Thanks to the close cooperation with the Maserati development team, the Bose engineers took an audio project specifically developed for the Maserati MC Stradale as an example, selecting the most suitable speakers and the most appropriate position for best performance. The system includes a custom-made speaker with two Nd®Richbass® woofers positioned between the rear seats, and one Nd®Richbass® woofer in a customised bass reflex speaker at the front, powered by a single amplifier with two-stage modulation.

The Nd®Richbass® woofer combines the lighter weight and the power of a neodymium iron boron magnet with a design that allows reproducing the low frequencies of a much bigger and heavier speaker. It is housed in a custom-made box concealed behind the passenger-side footwell. These specific speakers and their positioning are key elements that have allowed more uniform transmission of low-frequency sound, guaranteeing improved musical impact without reducing the available space in the vehicle. AudioPilot® noise compensation circuits: The Bose Surround Sound system includes AudioPilot® noise compensation circuits designed with an algorithm specifically dedicated to the acoustic profile of the Maserati MC Stradale. The system helps maintain the high quality of the listening experience onboard, compensating the effects of the noise generated by speed as well as external acoustic phenomena not related to the vehicle speed. The AudioPilot® system rapidly provides a wide compensation range and is able to best distinguish a continuous noise from a brief and transitory one caused by bumps in the road and other sudden changes in the road surface. This compensation is automatic so that the sound level perceived and the tone balance remain constant. Thanks to this solution, the driver can concentrate on the road and enjoy the absorbing experience of listening to good music and feeling the sensation the artist wants to transmit.

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Electrical systems and devices

The Bose Surround Sound System in the Maserati vehicles is controlled by a Bose digital amplifier, which includes Centerpoint® and SurroundStage® signal processing circuits and eight channels for equalization as required. The Bose system allows the occupants to disable the Surround Sound and AudioPilot functions directly from the MMS in order to optimise listening in disturbed conditions.

The system is equipped with twelve high-performance speakers and the following electronic system components:

1) One 80 mm Nd (Neodymium) Twiddler for high and medium frequencies, positioned centrally on the dashboard.

2) Two 36 mm Nd (Neodymium) Tweeters positioned in the passenger compartment, in position with the external rear-view mirrors.

3) Two 165 mm Nd (Neodymium) speakers for low and medium frequencies on each of the door panels.

4) One 13 cm Nd®Richbass® woofer (Neodymium) powered by an amplifier with two-stage modulation fitted in the passenger-side footrest.

5) Two 165 mm Nd (Neodymium) speakers for low and medium frequencies, on the side panels of the rear seats.

6) Two 80 mm Nd (Neodymium) Twiddlers for high and medium frequencies, positioned on the sides of the rear parcel shelf.

7) One 255 mm Nd Power® woofer powered by an amplifier, positioned centrally on the rear parcel shelf.

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Electrical systems and devices

iPod dock

On request, the Maserati MC Stradale can also be equipped with an iPod interface.

This allows the occupants to listen to music by connecting an iPod to the dock situated in the glove compartment using an adapter cable and to use the main iPod functions directly through the multimedia system (MMS). The iPod functions in the iPod Mode menu are shown on the display in the centre of the dashboard.

A.C. system The dual-zone air-conditioning system maintains the ideal temperature conditions in the vehicle by automatically adjusting the interior temperature and ventilation intensity in relation to the outside temperature, sunlight intensity and air humidity.

The fully electronic dashboard allows the driver and the passenger to separately set the temperature from a minimum of 16°C to a maximum of 32°C, while the air flow distribution through the two vents in the centre console ensures an ideal temperature in the rear area as well.

The system is also equipped with a demisting sensor: if the window temperature drops to below the dew point causing the window to mist up, the sensor automatically activates to reduce the percentage humidity in the air.

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Electrical systems and devices

Immobilizer and alarm system

Protection against theft is guaranteed by an immobilizer that acts by means of a transponder fitted in the ignition key and an alarm system comprising: - Motion-sensing alarm control unit (CAV) - Anti-lifting sensor and motion sensors - a perimeter protection - Siren under the lid - 3-button remote control for door locking/unlocking and luggage compartment opening.

The CAV is an electronic component supplied with the front ceiling light which is connected to the serial A-bus line by means of the inside roof panel wiring.

It incorporates the motion-sensing and anti-inclination alarm sensors and it controls the motion-sensors’ deactivation buttons.

Other electronic devices Apart from the devices already mentioned, on request the onboard equipment can be integrated with other electronic devices designed to enhance driving safety and comfort.

•

Internal (standard) and external (optional) electrochromic rear-view mirrors: they darken progressively as the light intensity increases thus preventing blinding.

•

Garage remote control (Home Link) on request: allows sending up to three different frequencies of three different remote controls directly to the onboard vehicle system positioned on the driver-side sun visor.

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Bodywork

9. Bodywork

It is a longer car, with the front splitter and redesigned rear bumper adding 48mm to the total length, but producing downforce to justify it.

The track experience and computational fluid dynamics have resulted in an aerodynamic package that has 25 percent more front downforce and 50 percent more rear downforce at 200km/h than the GranTurismo S.

The front splitter, side skirts and the front guard panels all combine as one unit to push the nose of the car down at high speed, to cool the brakes, extract the hot air from the braking system and to provide downforce along the length of the car. The painstaking aerodynamic design has also introduced two hot air extraction fans in the engine compartment lid.

The skirt has been particularly detailed, blending into the guards to maintain the underbody airflow and create downforce.

The detailed aerodynamic designs even include two hot air extraction outlets in the bonnet.

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Maserati Academy – January 2011 Maserati reserves the right to make changes to the vehicles described in this manual at any time, for technical or commercial reasons. All rights reserved. This document must not be reproduced, even partially, without the written consent of Maserati S.p.A.

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