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 right 1/3 rear seat.

- Remove the bolts - arrows - and remove the locking flange cover - 1 -.

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






- Push the circlip - 1 - upward - arrow A - and compress the release - arrow B -.






- Connect the multimeter to measure the resistance between contacts - 2 and 3 -.






Fuel level sensor installed:

• Sensor at lower stop: approximately 285 ohms.

• Sensor at upper stop: approximately 60 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 and the sensor floater must be placed in upper or lower end position. Refer to => [ Fuel Delivery Unit ] Fuel Delivery Unit

• With the 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 285 ohms.

• Sensor at upper stop: approximately 53 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 right 1/3 rear seat.