Fuel supply components, removing and installing: 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.
WARNING:
Always follow applicable safety precautions when working on the fuel system. See SAFETY PRECAUTIONS WHEN WORKING ON FUEL TANK
.
- Always replace gaskets, seals and clamps during reassembly.
- Hose connections are secured with screw- or clamp-type clamps.
- Connecting fuel pump remote control. See FUEL PUMP, CHECKING .
- Relay position 10 is located on the right side of the front passenger footwell on the wheelhousing.
- When removing and installing the fuel level sensor, make sure that the wiring is not damaged.
- Pay attention to rules of cleanliness. See RULES OF CLEANLINESS .
- Checking fuel pump relay:
NOTE:
The following list refers to items in Fig 1
.
- Lock ring
- Open using special tool 3342
- O-ring
- Mounting tube
- 20 Nm (15 ft lb)
- Banjo bolt
- 20 Nm (15 ft lb)
- Fuel supply line
- To fuel filter
- Lock ring
- Open using special tool 3217
- Alignment marking
- Marking on fuel level sensor aligns with marking on fuel tank
- Left-side fuel level sensor
- Removing and installing, see FUEL LEVEL SENSORS, REMOVING AND INSTALLING
- Seal
- Fuel tank
- Vent line
- Banjo bolt
- 20 Nm (15 ft lb)
- Fuel supply line
- Fuel filter
- Note direction of flow. See FUEL FILTER INSTALLATION POSITION .
- Banjo bolt
- 20 Nm (15 ft lb)
- Vent line
- Vent line
- Vent line for fuel filling
- Fuel pump with integrated reservoir and fuel level sensor
- Removing and installing, see FUEL PUMP WITH INTEGRATED RESERVOIR, REMOVING AND INSTALLING
- Return line
- Right-side fuel gauge sensor
- Removing and installing, see FUEL LEVEL SENSORS, REMOVING AND INSTALLING
- Seal
- Compression Spring
- Cover for fuel gauge sensor
- Removing and installing, see RIGHT-SIDE FUEL LEVEL SENSOR
- To open turn clockwise
- To close turn counterclockwise