16 11 030 Removing and Installing/Replacing Fuel Tank

16 11 030 Removing And Installing/Replacing Fuel Tank (petrol/gasoline)







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).

After installation of fuel tank/prior to first engine start-up:
- Check ground connection at fuel filler neck to body for continuity. If necessary, clean contact surface between body and fuel filler pipe screw connection.
- Fill fuel tank with at least 5 litres of fuel.







Necessary preliminary work:
- Extract fuel from fuel tank
- Remove rear seat bench.
- Remove rear right wheel arch trim.
- Remove propeller shaft.
- Remove compression strut on left and right
- Remove underbody panelling , rear left and right







Fold floor trim (1) to one side.
Unscrew nuts (2).
Remove cover for service opening (3).







Disconnect plug connection (1).
Disconnect fuel line (2).
If necessary, disconnect fuel line for auxiliary heating.

Installation note:
Check gasket (3), replace if necessary.







Unclip line holder (1).
Release plastic nut (2).

Installation note:
Check plastic nut (2), replace if necessary.
Tightening torque 16 12 2AZ.







Release quick-release coupling (1).

IMPORTANT:
There may be residual amounts of fuel in the fuel tank.
Catch escaping fuel in a suitable container.







Unfasten hose clamp (1).

Installation note:
Check hose clamp, replace if necessary.
Tightening torque 16 12 1AZ.

Detach fuel filler pipe (2) from fuel tank.







IMPORTANT:
Secure fuel tank against slipping and falling out.
Heavily support the fuel tank.







Unfasten nut.

Installation note:
Replace self-locking nut.
Tightening torque 16 11 1AZ.







Undo nuts and bolts (1).

Installation note:
Tightening torque 16 11 2AZ.
Lower fuel tank.







If necessary, disconnect fuel line for independent heating.
Feed fuel tank ventilation line through opening in body.
Remove fuel tank.

Replacement:
- Modify fuel pump.