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Steering column switch for retarder and cruise control (option
Driver's area controls
7 Wipe and wash: Press the sleeve on the steering column switch towards the steering column: With windscreen wipers switched off = windscreen wipe and wash.
Steering column switch for retarder and cruise control (option)
Drive cruise control
M54_00-0976-01 Activating drive cruise control: Precondition: bus speed must be greater than 10 mph (15 km/h). The service brakes and continuous brakes must not be activated. 1.1 Tap briefly (< 0.5 seconds) = current speed is set and shown on the display screen. Tap briefly again (< 0.5 seconds) = set speed is increased by 0.3 mph (0.5 km/h). Press and hold (> 0.5 seconds) = bus speed increased until switch released. When the combination switch is released, the current speed is set as the new value. 1.2 Tap briefly (< 0.5 seconds) = current speed is set and shown on the display screen, or resumption of last stored speed. Tap briefly again (< 0.5 seconds) = set speed is reduced by 0.3 mph (0.5 km/h). Press and hold (> 0.5 seconds) = bus speed reduced until switch released. When the combination switch is released, the current speed is set as the new value.
1.3 Cruise control is switched off and the last stored speed remains stored in the control unit.
Note:
The drive cruise control is automatically deactivated as soon as the service brakes or continuous brakes are operated or the neutral button is pressed.
Danger.
Do not use cruise control on a slippery road surface there is a risk of skidding. Only use cruise control if the road and traffic conditions permit a constant speed to be maintained. Driver's area controls
Note:
It may not be possible to maintain a constant speed on steep uphill or downhill gradients.
Continuous braking
Activating continuous braking: 2.1 to 2.5 Retarder stage 1 to 5 active
Danger.
Do not activate the continuous brake (retarder) on a slippery road surface. The wheels could lock - risk of skidding.
Danger.
If the accelerator pedal is operated while the continuous brakes are active, the continuous brakes are deactivated and braking output is reduced to zero.
Caution:
Always move the combination switch through each of the available stages to achieve the required braking torque (do not move it directly to the required position). It is only permitted to move the combination switch directly to the required position in an emergency. However, it is acceptable to skip several stages at once if you are reducing the braking torque. To achieve an optimum braking torque, the engine should be turning within its upper speed range so that the temperature of the coolant does not increase excessively.
Driver's area controls
Brake cruise control
M54_00-0976-01 The retarder keeps the bus constant at a set speed within the maximum braking torque. Activating the brake cruise control: Precondition: retarder stage 1 to 5 (position 2.1 to 2.5) activated. Accelerator pedal and brake pedal not depressed. 1.1 Tap briefly (< 0.5 seconds) = current speed is set and shown on the display screen. Tap briefly again (< 0.5 seconds) = set speed is increased by 0.3 mph (0.5 km/h). Press and hold (> 0.5 seconds) = set speed increased until switch released. When the combination switch is released, the current speed is set as the new value. 1.2 Tap briefly (< 0.5 seconds) = current speed is set and shown on the display screen. Tap briefly again (< 0.5 seconds) = set speed is reduced by 0.3 mph (0.5 km/h). Press and hold (> 0.5 seconds) = set speed reduced until switch released. When the combination switch is released, the current speed is set as the new value.
Combined cruise control
M54_00-0976-01 To activate combined cruise control: set drive cruise control and press in button 1.4 on the combination switch at the same time: the current speed is set (e.g 88 km/h) and shown on the display screen and brake cruise control is automatically set to a value which is 4 km/h higher (e.g. 92 km/h) at the same time. Cruise control automatically switches between the modes of operation depending on requirements. The display on the display screen changes to one value or the other depending on
