Fuel Level Sensors, Connector Assignment

Procedure 

-- Disconnect 5-pin electrical harness connector at connector flange or fuel tank; procedure. .

Terminal assignment of the 5-pin harness connector at Fuel Level Sensor -G- - vehicles with front wheel drive.

Fig 1: Checking For Voltage Between Connector Terminals -1- And -5-

Courtesy of AUDI OF AMERICA, LLC

1. Switched-positive connection of electric fuel pump
2. Wire connection from Fuel Level Sensor -G- to instrument cluster (fuel gauge)
3. Ground (GND) for Fuel Level Sensor (Sensor Ground)
4. Not Assigned
5. Electric fuel pump ground

Terminal assignment of the 5-pin harness connector at Fuel Level Sensor -G- and Fuel Level Sensor 2 -G169- - vehicles with all-wheel drive.

Fig 2: Checking For Voltage Between Connector Terminals -1- And -5-

Courtesy of AUDI OF AMERICA, LLC

1. Switched-positive connection of electric fuel pump
2. Wire connection from Fuel Level Sensor -G- to instrument cluster (fuel gauge)
3. Ground (GND) for Fuel Level Sensor (Sensor Ground)
4. Wire connection from Fuel Level Sensor 2 -G169- to the instrument cluster (fuel gauge)
5. Electric fuel pump ground