Engine code BBW: Removing
NOTE:
- Observe safety precautions before starting work. Refer to Safety precautions when working on the fuel supply system .
- The fuel extraction unit VAS 5190 is recommended for emptying the fuel tank. Contrary to the operating instructions the draining must not occur via the filler neck in this engine/vehicle or inner components will be damaged. Drain the fuel tank only via the opened flange.
WARNING:
- The fuel system is under pressure! Before opening the system place a cloth around the connection. Then release the pressure by carefully loosening the connection.
- Always wear eye protection and wear fuel-resistant gloves when disconnecting system connections.
- 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.
- Disconnect 4-pin connector -1-.
- Unscrew nuts -2- and take flange -3- off.
- Disconnect connector -1-.
- Remove seal -2-.
- Drain fuel tank via flange opening, e.g. with VAS 5190.
NOTE:
For ease of illustration, the fuel tank upper shell is not shown. The components are shown simplified.
- Separate connector -1- on wiring to suction jet pump -2- by pressing in safety ring on connector.
- Turn fuel delivery unit -3- in counter-clockwise direction (approx. 45 ° ), take it out of bayonet joint and place to side.
NOTE:
Observe that the strainer filter and the fuel gauge sender are not damaged.
- Remove fuel return hose -6- first from fuel filter and then supply hose -5-.
- Take out supply line -1- of flange cut -out and then return hose -2-. Carefully remove fuel supply unit -3-.
NOTE:
- When removing the fuel supply unit observe that the fuel gauge sender is not damaged.
- If the fuel delivery unit is to be replaced then drain the old fuel delivery unit before disposal.