Fuel Pump (FP) Unit, Removing and Installing

Fuel Pump (FP) Unit, Removing And Installing

Recommended special tools and equipment







- 3217 ring nut wrench







- V.A.G1332 torque wrench (40 to 200 Nm)

Requirements
- Fuel tank may be a maximum of 1/2 full
- Parking brake must be engaged or else day time driving lights will be switched on.
- Ignition switched off.

NOTE:
- Empty fuel tank if necessary, e.g. using a fuel siphoning device.
- Read safety precautions before beginning work.

Removing
Observe rules for cleanliness.
- First determine whether a coded radio is installed. In this case, determine the anti-theft coding.
- Switch ignition off and disconnect Battery Ground (GND) strap.
- Fold rear seatback forward.
- Remove cover from Fuel Pump (FP)







- Disconnect 4-pin harness connector as well as supply and return lines from flange (arrows).

NOTE: Depress buttons on hose connections to do so.

WARNING:
- The fuel or fuel lines in fuel system can become very hot (danger of scalding).
- In addition, the fuel system is under pressure. before opening the system, place rags around the connection area and release pressure by carefully loosening the connection.
- Wear protective goggles and protective gloves when working on the fuel system.

- Seal off lines so that no dirt will get into fuel system.







- Use 3217 ring nut wrench to remove union nut.
- Pull Fuel Pump (FP) and sealing ring from opening of fuel tank

NOTE: When replacing Fuel Pump (FP) unit, empty old Fuel Pump (FP) unit before disposing.

Installing
- Installation of the Fuel Pump (FP) unit is in reverse order of removal.

NOTE:
- When inserting Fuel Pump (FP), be sure not to bend sender for fuel gauge.
- Insert dry flange seal of fuel pump into opening of fuel tank.
- Only coat seal with fuel when installing Fuel Pump (FP) unit.
- Make sure fuel lines are securely fastened.







- Note installation position of Fuel Pump (FP) flange: Marking on flange must align with marking on fuel tank (arrows).
- After installing Fuel Pump (FP) unit, check whether supply, return and ventilation lines are still clipped in at fuel tank.

- Erase DTC memory of Engine Control Module (ECM). Diagnostic mode 4: Reset/erase diagnostic data. Diagnostic Mode 4: Reset/Erase Diagnostic Data
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes