Fuel Delivery Unit, Removing and Installing

Fuel delivery unit, removing and installing

Special tools, testers and auxiliary items required



Ring nut wrench 3217



Torque wrench V.A.G 1332

Removing

- Read safety precautions before beginning work Safety precautions when working on fuel supply system.

- First, check whether a coded radio is installed. If necessary, obtain the anti-theft coding.

- With ignition switched off disconnect battery ground (GND) strap.

- Remove cover under bench seat.

- Pull off 4-pin connector such as supply and return lines from flange.
Note: Press buttons together on hose connections to do this.

CAUTION! Fuel supply lines are under pressure! Wear protective goggles andprotective clothing to prevent injuries and contact with skin. Beforeremoving from hose connection wrap a cloth around the connection. Thenrelease pressure by carefully pulling hose off connection.




- Use ring nut spanner 3217 to remove union nut.

- Pull fuel delivery unit and seal out of opening in fuel tank.
Note: If the delivery unit is to be replaced then drain old delivery unit before disposal.

Installing

- Installation of fuel delivery unit is in reverse order of removal.

Note:
- When inserting fuel delivery unit, be sure not to bend fuel gauge sensor.
- Insert dry flange seal of fuel pump into opening of fuel tank.
- Only coat seal with fuel when installing fuel delivery unit.
- Ensure fuel hoses are seated securely.



- Note installation position of fuel delivery unit flange: Marking on flange must align with marking on fuel tank - arrows - .
- After installing fuel delivery unit, check that the supply, return and breather lines are still clipped onto the fuel tank.

- Perform work sequence "Procedure after voltage supply open circuit". Service and Repair