Removing and Installing/Replacing Left Fuel Level Sensor (Diesel)

16 12 250 - Removing and installing/replacing left fuel level sensor (diesel)





Recycling
Fuel escapes when fuel lines are detached. Have a suitable collecting container ready.
Catch and dispose of escaping fuel.
Observe country-specific waste-disposal regulations.





Important!
Ensure adequate ventilation in the place of work!
Avoid skin contact (wear gloves)!
Ensure absolute cleanliness when working on the open fuel tank.
Contaminants in the fuel tank can impair driving operation or may even result in vehicle breakdown!
Before starting the engine for the first time:
- Fill fuel tank with at least 5 liters of fuel





Necessary preliminary tasks:
- Draw off fuel from fuel tank Procedures
- Remove rear seat bench





For vehicles with 2 seat rows only:
Disconnect plug connection (1).
Remove cover (2).





Release nuts (1) and remove cover for service opening (2) from left side of fuel tank.





Disconnect plug connection (1).
Unlock quick-release fastener (2) and detach fuel feed line.
Unlock quick-release fastener (3) for vent line and detach.





Release completely remainder of torque breakoff head (1) with a screwdriver.
Remove hose clamp from clamping ring (2).

Note:
A flexible extension can be used to release the hose clamp,

Press clamping ring (2) part at open end in direction of arrow and remove.





Installation:
Make sure that service cover is installed in correct position.
Indentation (2) on clamping ring must line up with raised section (1) of tank.
Pin on service cover (3) must line up with indentation on clamping ring.
Hose clip with torque breakoff head (4) must always be replaced.
Tighten hose clip until torque breakoff head (4) breaks off.





Installation:
Seal (1) must always be replaced.
Carefully pull delivery unit upwards.





Slide plug connection (1) in direction of arrow from delivery unit (2) and disconnect.





Note:
For purposes of clarity, graphic does not show tank outer skin.

Unclip fuel level sensor (1) in direction of arrow from housing and then slide out of guides in direction of arrow.

Installation:
Fuel level sensor (1) must be felt and heard to snap into place.