2.5 Fuel Injectors, Cleaning

Golf 2015 ➤ , Golf Variant 2015 ➤ Engine Mechanical, Fuel Injection and Ignition - Edition 04.2015

Oxygen Sensors 1 - Oxygen Sensor 1 after Catalytic Converter - GX7- connector 2 - Oxygen Sensor 1 before Catalytic Converter - GX10- connec‐tor

Oxygen Sensor 1 before Catalytic Converter - GX10- -1-

Oxygen Sensor 1 after Catalytic Converter - GX7- -1-

Protected by copyriht . Copying for pivate or co merci al pur o s e s , i n p a r t r o r in w ho le, is not permitted unless authorised by Volkswagen AG. Volkswagen AG does notguarantee or accept any liabilit y wi th res pect t o t h e c o r r e c t n e ss o f in format ion in this document. Copyright by Volkswagen AG. p 1.2 High Fuel Pressure, Reducing CAUTION m Fuel system is under high pressure. Risk of injury from fuel spraying out. – Reducing the fuel high pressure. g High Fuel Pressure, Reducing – Turn on the ignition and select the following menu items on the Vehicle Diagnostic Tester : ♦ 01 - Engine Electronics ♦ Guided Functions

♦ 01 - Removing Fuel High Pressure

• The fuel pressure reduces to a specified value. – Switch off the ignition.

Golf 2015 ➤ , Golf Variant 2015 ➤ Engine Mechanical, Fuel Injection and Ignition - Edition 04.2015 Protected by copyright . Copying for pivate or co merci al pur po s e , i n p a r t r o r in w ho le, is not permitted unless authorised by Volkswagen AG. Volkswagen AG does notguarantee or accept any liabilit y wi th res pect t o t h e c o r r e c t n e ss o f in format ion in this document. Copyright by Volkswagen AG. The fuel rail will continue to be filled with fuel, but it will no longer be under high pressure. CAUTION Fuel system is under pressure. Risk of injury from fuel spraying out. – Wear protective eyewear. – Wear safety gloves. – Reduce the pressure: Lay clean cloths around the connec‐tion location and carefully open the connection point. s – After reducing fuel high pressure, place a clean cloth around the connection and open the high pressure system »immedi‐ately«. Collect any draining fuel. Note m ♦ If the high pressure system is not opened immediately, the pressure will increase because of post-heating. ♦ The ignition can no longer be switched on, otherwise the pres‐sure will increase again.