Fuel pump with integrated reservoir, removing and installing: Removing: Notes

WARNING: This page is about a different car, the 1999 Audi A8, 1998 Audi A8, and 1997 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Follow safety precautions. See SAFETY PRECAUTIONS WHEN WORKING ON FUEL TANK .

CAUTION: Before disconnecting the battery, determine the correct coding for the anti-theft radio.

Disconnect battery Ground strap.
Remove cover for fuel pump and fuel level sensor.
Remove luggage compartment trim.
Disconnect harness connector for fuel pump and fuel level sensor.

Fig 1: Disconnecting Fuel Supply And Fuel Return Lines At Tank
Relieve system pressure by carefully opening fuel supply line.
Disconnect fuel supply and fuel return lines.
On vehicles equipped with auxiliary heater, the supply line to the fuel pump is connected to mounting tube -A-. See Fig 1 .
Using special tool 2012A, open fuel level sensor cover by turning clockwise, then remove compression spring below.

Fig 2: Opening Fuel Level Sensor Cover Using Special Tool 2012A
Using pliers, carefully lift sensor and disconnect electrical harness connector.

Fig 3: Lifting Sensor And Disconnecting Electrical Harness Connector
Remove fuel level sensor.
Use special tool 3342 to open fuel pump lock ring.

Fig 4: Using Special Tool 3342 To Open Fuel Pump Lock Ring
Loosen mounting tube (13 mm) and leave inserted. See Fig 5 .

Fig 5: Cut-Away View Of Fuel Pump With Integrated Reservoir Installed In Fuel Tank
Press firmly on mounting tube to separate fuel pump with integrated reservoir from intake housing in fuel reservoir.
Remove mounting tube.
Remove fuel pump with integrated reservoir.
Pull and turn clockwise at the same time to remove pump from fuel tank.

NOTE: The illustration shows a cut-away view of how the fuel pump with integrated reservoir is installed in the fuel tank.