Overview - Fuel Delivery Unit/Fuel Level Sensor
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2015 Audi S8, 2015 Audi A8 Quattro, 2014 Audi S8, 2014 Audi A8 Quattro, and 2013 Audi S8. However, it is still accessible from the selected car via links, so may be relevant.
Fuel Delivery Unit
- Suction Jet Pump
- Clipped to the baffle housing
- Do not kink
- To disconnect, press release button on the connection piece.
- Fuel Delivery Unit
- With Transfer Fuel Pump -G6-
- Check the electric fuel pump in Guided Fault Finding using the Vehicle Diagnostic Tester.
- Removing and installing, refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .
- Fill the fuel tank with at least five liters of fuel after installing
- Checking holding pressure, refer to TRANSFER FUEL PUMP -G6-, CHECKING .
- Fuel Line
- To fuel filter
- Do not kink
- To disconnect, press release button on the connection piece.
- Clipped to the baffle housing
- Seal
- Replace
- Install dry
- Sealing Flange
- Removing and installing, refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .
- Locking Ring
- 120 Nm
- Loosen and tighten using the Wrench - Fuel Sending Unit T10202
- Fuel Line
- Only vehicles with a parking heater: to the parking heater metering pump
- Do not kink
- Clipped on the bracket -9-
- Press the release button to remove from the sealing flange
- Connector
- For the Fuel Pump Control Module -J538-
- Bracket
- For the connectors
- Fuel Pump Control Module -J538-
- Removing and installing, refer to FUEL PUMP CONTROL MODULE -J538-, REMOVING AND INSTALLING .
- Nut
- 1.6 Nm
- Connectors
- For the Transfer Fuel Pump -G6- and the Fuel Level Sensor -G-
- Fuel Line
- To the engine
- Do not kink
- Press the release button to remove from the sealing flange
- Clipped to the fuel tank
- Fuel Line
- To the baffle housing distributor
- Do not kink
- To disconnect, press release button on the connection piece.
- Fuel Pressure Regulator
- Clipped to the baffle housing
- Removing and installing, refer to FUEL PRESSURE REGULATOR, REMOVING AND INSTALLING .
- Right Cover
- For baffle housing
- Clipped to the baffle housing
- Removing and installing, refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .
- Left Cover
- For baffle housing
- Clipped to the baffle housing
- Removing and installing, refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING .
- Baffle Housing
- Welded to the fuel tank
-- Tighten the bolts -arrows- on the cover -1- to 1.5 Nm.
Fuel Level Sensor
NOTE:
The fuel level sensor pictured is a representation for vehicles through MY 2013.
- Baffle Housing
- Welded to the fuel tank
- Fuel Level Sensor -G-
- Clipped to the baffle housing
- For checking the resistance values, refer to FUEL LEVEL SENSOR -G-, CHECKING .
- Removing and installing, refer to FUEL LEVEL SENSOR -G-, REMOVING AND INSTALLING .
- Seal
- Replace
- Install dry
- Sealing Flange
- Locking Ring
- 120 Nm
- Loosen and tighten using the Wrench - Fuel Sending Unit T10202
- Connector
- For Fuel Level Sensor -G-
- Connector
- For Fuel Level Sensor 3 -G237-
- Inside the fuel tank
- Attached to the suction line with cable ties
- Locking Ring
- 120 Nm
- Loosen and tighten using the Wrench - Fuel Sending Unit T10202
- Sealing Flange
- There are different versions.
- With Fuel Level Sensor 3 -G237- -11-
- Seal
- Replace
- Install dry
- Fuel Level Sensor 3 -G237-
- For checking the resistance values, refer to FUEL LEVEL SENSOR 3 -G237-, CHECKING .
- Removing and installing, refer to FUEL LEVEL SENSOR 3 -G237-, REMOVING AND INSTALLING .
- Connector
- For Fuel Level Sensor 2 -G169- and Fuel Level Sensor 3 -G237-
- Locking Ring
- 120 Nm
- Loosen and tighten using the Wrench - Fuel Sending Unit T10202
- Sealing Flange
- Seal
- Replace
- Install dry
- Fuel Level Sensor 2 -G169-
- For checking the resistance values, refer to FUEL LEVEL SENSOR 2 -G169-, CHECKING .
- Removing and installing, refer to FUEL LEVEL SENSOR 2 -G169-, REMOVING AND INSTALLING .
- Mount
- Welded to the fuel tank