Fuel Level Sensor (G), Checking

Fuel Level Sensor (G), Checking

Special tools, testers and auxiliary items required

• Multimeter (V.A.G 1526D)

• Connector Test Set (V.A.G 1594C)

Procedure

TT Coupe:

- Remove rear seat bench.

TT Roadster:

- Remove the right side rear panel trim panel.

All Vehicles:

- Unclip the retainers - arrows - of the cover for sealing flange.






- Disconnect the connector - arrow - from the locking flange.






- Connect multimeter between terminals - 2 and 3 - to measure resistance.






Fuel level sensor installed:

• Sensor at lower stop: Approximately 270 ohms.

• Sensor at upper stop: Approximately 70 ohms.

• To check resistance values "tank full" or "tank empty", the fuel delivery unit must be removed and the sensor floater must be placed in upper or lower end position. Refer to => [ Fuel Delivery Unit ] Fuel Delivery Unit.

• If measured value is 0 ohms there is a short circuit. If measured value is there, there is an open circuit in the wiring.

• With fuel level sensor removed, the following values are obtained because of the greater deflection of the floater arm:

Fuel level sensor removed:

• Sensor at lower stop: Approximately 290 ohms.

• Sensor at upper stop: Approximately 50 ohms.

- Connect multimeter between terminals - 3 and 4 - to measure resistance.

Fuel level sensor installed or removed:

• Any sensor position: Approximately 340 ohms.

Assemble in reverse order of disassembling. Note the following:

TT Coupe:

- Install rear seat bench.

TT Roadster:

- Install the right side rear panel trim panel.