Removing and Installing/Replacing Fuel Tank

16 11 030 - Removing and installing/replacing fuel tank





Special tools required:
- 13 5 281
- 13 5 282





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)!

After installation of fuel tank/prior to first engine start-up:

- Fill fuel tank with at least 5 liters of fuel.
- Check ground connection at fuel filler neck to body for continuity. If necessary, clean contact surface between body and fuel filler pipe screw connection.
- Check transfer function of suction jet pump Checking Repumping Function of Suction-Jet Pump With BMW Diagnosis System.





Necessary preliminary tasks:
- Draw off fuel from fuel tank Procedures
- Remove rear seat bench Rear Seat, Through-Loading
- Remove underbody panelling Removing and Installing/Replacing Left or Right Underbody Panelling
- Remove handbrake Bowden cables Service and Repair
- Remove complete propeller shaft Removing and Installing Propeller Shaft (Cardan Universal Joint) Completely





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





Right side:

Detach plug (1) and lines (2 and 3) from delivery unit





Left side (diesel only):

Unlock quick-release fastener (1) and detach vent line.





Unclip line (3) from holders.

Release hose clamps (1) and (4).

Detach fuel filler hose (2).

Installation:
Tightening torque 16 12 10AZ 16 12 Fuel Delivery.





Unlock and disconnect fuel feed line (1).

Unlock and disconnect fuel return line (2).





Important!
Risk of damage: Do not kink lines.

Release screw and unclip lines (1) from holder.





Seal fuel feed line with special tools 13 5 281 and 13 5 282.





Heavily support the fuel tank.





Release screw.

Installation:
Tightening torque, 16 11 1AZ 16 11 Fuel Tank and Mounting Parts.





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

Installation:
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.





Important!
Risk of damage: Feed out fuel line (2).

Do not kink fuel line.

Lower tank until line (1) is accessible.

Unclip line (1) from holders.

Remove fuel tank downwards.

Note:
Illustration shows: tank removed.





Note:
The following components must be modified when the fuel tank is replaced:

- Left sensor unit 16 12 001 Removing and Installing/Replacing Fuel Gauge Sensor (Left Side)
- Right sensor unit
- Fuel lines on tank