Fuel Delivery Unit, Removing and Installing
Fuel Delivery Unit, Removing And Installing
Special tools, testers and auxiliary items required
- Spanner for union nut 3217
- Torque wrench (40...200 Nm) V.A.G 1332
Removing
Observe safety precautions.
Observe rules for cleanliness.
- Check whether a coded radio is installed. If so, obtain anti-theft coding.
- With ignition switched off disconnect battery ground strap.
- Fold rear seat bench forward.
- Remove cover from fuel delivery unit.
- Pull 4-pin connector as well as supply and return lines off flange.
CAUTION:
- The fuel and the fuel lines in the fuel system can become very hot (danger of scalding).
- The fuel system is also under pressure. Before opening the system, place cloths around the connection. Then carefully loosen the connection to release the pressure.
- Wear eye and hand protection when performing any type of repair work on the fuel system.
NOTE: Press buttons on hose couplings to disconnect fuel line connections.
- Remove union nut with spanner 3217.
- 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 the fuel delivery unit is performed in the reverse order.
NOTE:
- Do not bend the fuel sender when installing.
- Insert seal for flange or fuel delivery unit dry into opening of fuel tank.
- Moisten seal with fuel only when installing flange or fuel delivery unit.
- Ensure fuel hoses are tight.
- After installing fuel delivery unit, check that the supply, return and breather lines are still clipped onto the fuel tank.
- Note installed position of fuel delivery unit flange: Marking on flange must align with the marking on fuel tank - arrows -.