16 11 030 Removing and Installing/Replacing Fuel Tank

16 11 030 Removing And Installing Or Replacing Fuel Tank (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.

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 min. 5 l fuel.
- Check transfer function of suction jet pump. Testing and Inspection







Necessary preliminary tasks:
- Draw off fuel from fuel tank
Procedures
- Remove rear seat bench
Removing and Installing/Replacing Rear Seat (Through-Loading)
- Remove guide tube for handbrake cables
34 41 140 Removing and Installing or Replacing Guide Tube For Handbrake Cables
- Remove right wheel arch trim
Service and Repair
- Remove rear left and right underbody panelling
Removing and Installing/Replacing Left or Right Underbody Cover
- Remove left and right underbody cover
Removing and Installing/Replacing Left or Right Underbody Panelling






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







Left sensor unit:
Disconnect plug connection (1).
Unlock quick-release fastener (2) and detach line towards front.
Unlock quick-release fastener (3) and detach line towards top.

Installation:
Make sure quick-release fasteners engage correctly.







Right sensor unit:
Disconnect plug connection (1).







Release hose clamp (1) and detach fuel filler hose (2).

Installation:
Tightening torque 16 12 1AZ.







Unlock quick-release fastener (1) and detach vent line (2).
Detach vent line (2) from holder (3).







Heavily support the fuel tank.







Unfasten nut.

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







Release screws for tightening straps on left and right and remove tightening straps.

IMPORTANT: Carefully feed the vent line through the body when lowering the fuel tank.

Carefully lower fuel tank.

Installation:
Tightening torque 16 11 2AZ.







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







The following components must be modified when the fuel tank is replaced:
- Vent line (1)
- Right sensor unit (2)
16 12 000 Removing and Installing/Replacing Fuel Gauge Sensor (Right Side)
- Left sensor unit (3)
16 12 001 Removing and Installing/Replacing Fuel Gauge Sensor (Left Side)