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






- Remove the rear bench seat.

- Remove the locking flange cover - arrows -.

- Disconnect the connector - 1 - on the locking flange.






• Ignore - 2 -.

- Connect the multimeter to measure the resistance between contacts - 2 and 4 -.






Fuel Level Sensor (G) installed:

• Sensor at lower stop: approximately 280 ohms.

• Sensor at upper stop: approximately 65 ohms.

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

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

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

Fuel Level Sensor removed:

• Sensor at lower stop: approximately 288 ohms.

• Sensor at upper stop: approximately 57 ohms.

- Connect the multimeter to measure the resistance between contacts - 3 and 4 -.






Fuel Level Sensor installed or removed:

• Any sensor position: approximately 340 ohms.

Assemble in reverse order of disassembling. Note the following:

- Install the right locking flange cover. Refer to => [ Locking Flange Cover - Tightening Specifications ] Fuel Tank With Attachments Overview.

- Install the rear bench seat.