Overview - Fuel Delivery Unit/Fuel Level Sensor, All TDI Vehicles
WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
- Fuel Level Sensor
- Fuel Gauge Sensor -G-, Removing and installing. Refer to Fuel Gauge Sensor -G-, REMOVING AND INSTALLING .NOTE:
The Fuel Level Sensor 2 -G169- is integrated in the fuel tank and cannot be replaced separately.
- Fuel Gauge Sensor -G-, Removing and installing. Refer to Fuel Gauge Sensor -G-, REMOVING AND INSTALLING .
- Fuel Supply Line
- To the fuel filter
- Clipped to the fuel tank
- Do not kink
- To disconnect, press the release button on the connecting piece
- Connector Couplings, Separating and Connecting. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
- Fuel Return Line
- From the engine
- Clipped to the fuel tank
- Do not kink
- Press the release button on the connecting piece to remove from the sealing flange
- Connector Couplings, Separating and Connecting. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
- Connector
- For Fuel Pump Control Module -J538-
- Make sure it is attached securely
- Fuel Pump Control Module -J538-
- Checking using the Vehicle Diagnostic Tester.
- Component location: right under the rear sill panel
- Removing and installing. Refer to Fuel Pump Control Module -J538-, REMOVING AND INSTALLING .
- Sealing Flange Cover
- Bolt
- 1.5 Nm
- Quantity: 3
- Fuel Line to Parking Heater Metering Pump
- Country/equipment versions
- Clipped to the fuel tank
- Do not kink
- Connector Couplings, Separating and Connecting. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
- Connector
- Country/equipment versions
- To the metering pump for the parking heater
- Make sure it is attached securely
- Locking Ring
- 110 Nm
- Loosen and tighten using the Wrench - Fuel Sending Unit :T10202
- Gasket
- Replace after removing
- Install dry
- Wiring Harness
- For Transfer Fuel Pump -G6-, Fuel Gauge Sensor -G- and Fuel Gauge Sensor 2 -G169-
- Make sure it is attached securely
- Fuel Delivery Unit
- With the Transfer Fuel Pump -G6-
- Check the fuel pump electronically using the Vehicle Diagnostic Tester.
- Removing and Installing. Refer to FUEL DELIVERY UNIT/FUEL LEVEL SENSOR, REMOVING AND INSTALLING, TDI VEHICLES .
- Connector Couplings, Disconnecting and Connecting. Refer to CONNECTOR COUPLINGS, DISCONNECTING .
- It must be ensured that at least five liters of fuel are in the fuel tank after installation.