16 12 000 Removing and Installing or Replacing Fuel Gauge Sensor (Diesel, Right)

16 12 000 Removing And Installing Or Replacing Fuel Gauge Sensor (Diesel, Right)

Special tools required:







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







IMPORTANT:
Ensure adequate ventilation in the workbay.
Avoid skin contact (wear gloves).
Ensure absolute cleanliness when working on the open fuel tank.
Before starting the engine for the first time:
- Fill fuel tank with at least 5 litres of fuel.







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







Only for E84, E87, E91:
Only unclip seat bench (1) on the left and right and fold up in direction of arrow as illustrated.
Secure seat bench on front seat (2).







Release screws (1) and remove cover (2) from right side of fuel tank.







Disconnect plug connection (1).
If necessary, remove fuel line for auxiliary heater.







Release screw cap with special tool 16 1 020 and remove service cap.

Installation note:
Procedure for tightening screw cap, see next work step.







IMPORTANT:
Fit screw cap without using a tool and tighten hand-tight.
Then tighten screw cap with special tool 16 1 020 until notch (1) points to marking (2).

NOTE: Illustration shows the tank removed.







Pull out service cover (1).
Unlock and disconnect quick-release fastener (3) of fuel delivery line.

Installation note:
Clean sealing surfaces and install new rubber seal (2).

Locating rods (4) must fit correctly in the hole (5) of the delivery unit.
Make sure that the lever sensor moves freely before fitting the service cap (1).







Installation note:
Service cap can only be installed in one position.

When installing, make sure lug (1) of service cap engages in corresponding opening (2) on fuel tank.







Disconnect line (1) towards top Unlock quick-release fastener (3) and
detach fuel return line (2).

IMPORTANT: Do not use any tools to unlock the fuel delivery line.

Draw off remaining fuel from surge tank.
Carefully lift fuel pump with fuel level sensor (4) out of fuel tank.







Remove fuel level sensor in direction of arrow.

Installation note:
Fuel level sensor must snap audibly into place.







Detach line from brackets.
Unlock plug connection (1) and detach from service cap.

IMPORTANT:
Risk of damage:
Carefully feed cable out of cable guide.
Do not kink cable.