Fuel Delivery Unit

Fuel Delivery Unit

Special tools, testers and auxiliary items required

• Wrench (T10202)

Removing

Observe safety precautions, refer to => [ Safety Precautions ] Service Precautions.

Observe rules for cleanliness, refer to => [ Clean Working Conditions ] Clean Working Conditions.

• The fuel tank may only be maximum 3/4 full when removing the fuel delivery unit. Empty fuel tank if necessary. Refer to => [ Fuel Tank, Draining, FWD ] Fuel Tank, Draining, FWD.


Risk of destroying electrical components when battery is disconnected.

• Observe measures when disconnecting battery.

- Disconnect battery.

- Remove rear seat bench.

- Unclip the retainers - arrows - of the cover for sealing flange.





- Disconnect electrical harness connector - arrow - at locking flange.





- Mark the fuel supply line - 1 - and fuel return line - 2 -.






There is a risk of injury because the fuel is under high pressure.

• Before opening the fuel system, lay a clean cloth around the connection point and carefully loosen it, which lowers the pressure.

- Pull both lines from locking flange, by pressing the release buttons.


The fuel tank may only be maximum 3/4 full when removing the fuel delivery unit. Otherwise, a large amount of fuel will spill out.

- Remove locking ring with (T10202).





- Remove the fuel delivery unit and seal trough the opening in the fuel tank.

• When removing fuel delivery unit, be sure not to bend floater arm on the fuel level sensor (G).

• Be sure there is still some fuel inside the fuel delivery unit.

Installing

• Tightening specifications, refer to => [ Fuel Delivery Unit and Fuel Level Sensor Overview ] Fuel Delivery Unit and Fuel Level Sensor Overview.

Installation is in reverse order of removal, note the following:

• Replace seal.

• Do not bend the fuel level sensor when inserting the fuel delivery unit.

- Install the fuel delivery unit into the fuel tank.

- Install the new locking flange seal dry.

- Press the locking flange down and bring it into the installation position.

• The tab - 2 - on locking flange must lie between tabs - 1 - and - 3 - on fuel tank.





• - Arrow - points in direction of travel.

- Tighten locking ring.





- Install rear seat bench.

- Connect battery. Observe safety precautions after connecting battery.

With FSI and TFSI engines:

- After replacing the fuel delivery unit, a fuel pump adaptation must be performed. Refer to => [ Fuel Pump Adaptation after Replacing Fuel Delivery Unit, FSI and TFSI Engines ] Fuel Pump Adaptation After Replacing Fuel Delivery Unit, FSI and TFSI Engines.