Removal and Replacement

16 11 030 - Removing and installing fuel tank





Important!
After installation of fuel tank/prior to first engine start-up:
Check electrical resistance between earthing/grounding cable (fuel filler pipe) and wheel hub.
Measured value approx. 0.6 W
Fill fuel tank with min. 5 l fuel.





Necessary preliminary tasks:
- Draw off fuel from fuel tank Procedures

- Remove rear right wheel arch trim Service and Repair

- Remove complete propeller shaft Removing and Installing Complete Propeller Shaft (Constant-Velocity Joint)

- Remove handbrake Bowden cables Service and Repair from wheel carrier and unclip from fuel tank

- Remove right tension strut for rear axle Replacing Left or Right Rear Axle Carrier Compression Strut





Unfasten nut.

Installation Note:
Tightening torque 16 12 11AZ 16 12 Fuel Delivery.
Seal nut with underseal again.





Unfasten hose clip (1).
Disconnect filler vent line (4) from fuel filler pipe.
Vehicles with petrol/gasoline engines:
Disconnect service vent line (2) from carbon canister.
Unclip both lines and remove retaining clip (3).

Installation Note:
Replace hose clamp (1).





Vehicles with petrol/gasoline engines:
Unlock and disconnect plug connections (1) of feed line.
If necessary, disconnect line (2) for independent heating.
Vehicles with diesel engines:
Unlock and disconnect feed and return lines.
If necessary, disconnect line for independent heating.





Release screw.
Tightening torque, 16 11 1AZ 16 11 Fuel Tank and Mounting Parts.





Heavily support the fuel tank.





Release screws for tightening straps on left and right and remove tightening straps.
Tightening torque, 16 11 1AZ 16 11 Fuel Tank and Mounting Parts.





Installation Note:
Note rubber mount with spacer bush.
Wide collar on spacer bush points to screw head.





Lower tank until plug (1) on top side of right tank half is accessible.
Unlock plug (1) and detach from delivery unit.

Note:
Get a second person to feed out vent lines to wheel arch while removing tank towards bottom.





Installation Note:
Feed vent lines (1) and (2) through body.
Do not kink lines.