Fuel Gauge Sender: Testing and Inspection

Fuel Level Sensor G , Checking

Special tools, testers and auxiliary items required







- Portable multimeter V.A.G 1526 C







- Connector test set V.A.G 1594 C

Test sequence
- Remove rear seat bench.







- Unbolt cover for right locking flange - arrows - .

Audi RS4:







- Remove electrical wires with connector - arrow - from locking flange opening and lay them aside.

All:







- Disconnect electrical harness connector - arrow - at right locking flange.







- Connect hand multimeter V.A.G 1526 C between terminal - 2 - and - 3 - for resistance measurement.







NOTE:
- If measured value is 0 Ohm there is a short circuit. If measured value is Infinity Ohm there is and open circuit in the wiring.
- To check resistance values "tank full" or "tank empty" , the fuel level sensor G must be removed and the floater of the sensor must be pivoted to the upper or lower end position.
- With fuel level sensor G removed, the following values are obtained because of the greater deflection of the floater arm: