Operation CHARM: Car repair manuals for everyone.

Fuel Level Sensor: Service and Repair


Removing and Installing Fuel Level Gauge Sensor







Removing, installing


DANGER: Risk of explosion from Ignition Risk of poisoning from inhaling and swallowing fuel. Risk of injury as a result of fuel coming into contact with skin and eyes.

- No fire, naked flame or smoking Pour fuels only into suitable and appropriately marked containers. Wear protective clothing when handling fuel.



1 Empty fuel tank, fill


NOTE: If fuel tank is full, pump out about 8 liters.


2 Remove trim for fuel tank in the trunk
3 Unplug coupling (arrow) for fuel gauge sensor (B4) (and pressure sensor. (USA) only)


NOTE: Fuel gauge sensor (B4) and pressure sensor form a unit.


- Secure electric cable to prevent it slipping off.


4 Open bayonet lock of fuel gauge sensor (B4)
Refer to Special Tool below

5 Take out fuel gauge sensor (B4)


CAUTION: Installation replace seal (89/2). Oil to facilitate installation


6 Install in the reverse order


Special Tool: