Procedures

16 00 005 - Draining and filling fuel tank





Special tools required:
- 16 1 080 16 1 080 Hose Guide





Important!
Observe relevant country safety legislation and regulations.

Ensure adequate ventilation in the place of work!

Connect exhaust extraction unit to exhaust tailpipe.

The electric fuel pump must not operate without fuel! After completing repairs and before starting engine for first time, fill fuel tank through fuel filler pipe with min. 5 ltr. fuel.

Do not damage non-return flap when pulling out extraction hose.





Diesel vehicles:

Note:
Before starting the engine for the first time, if the tank has been run dry or drawn off, fill with diesel fuel and turn on ignition for approx. 1 minute. The fuel circuit is thus filled and vented, which results in the engine firing more quickly.





Drawing off fuel:

Start engine and allow to run.

Note:
Electric fuel supply pump runs.

In this way, the fuel is repumped through the suction jet pump and the tank expansion line from the left to the right side of the fuel tank.

Fuel can be drawn off from the left and right tank halves through the fuel filler pipe down to a small residual amount. This residual amount is drawn off after removal of the sensors for the fuel gauge (right/left).





Insert special tool 16 1 080 16 1 080 Hose Guide into filler neck.

Special tool 16 1 080 16 1 080 Hose Guide has two different diameters for gasoline and diesel vehicles!

Slide extraction hose of extractor unit, refer to BMW Service Workshop Equipment and Planning Documentation, through special tool 16 1 080 16 1 080 Hose Guide into the fuel filler pipe, turning in the process if necessary.

Insertion length:

130 cm - All except E53 and E65 / E66
150 cm - E53 and E65 / E66
Draw off fuel with extractor unit,

refer to BMW Service Workshop Equipment & Planning documentation,

as far as possible.

Follow the fuel drawing-off procedure at the fuel gauge in the instrument cluster.





Drawing off residual fuel quantity:

Drawing off residual fuel amount is not included in the time value of this operation.

Important!
Ensure car interior is adequately ventilated.

Catch dripping fuel in a suitable container.

Remove fuel gauge sensor (right) 16 12 000 Removing and Installing/Replacing Fuel Gauge Sensor (Right Side).

Remove fuel gauge sensor (left) 16 12 001 Removing and Installing/Replacing Fuel Gauge Sensor (Left Side).

Draw off residual fuel quantity through installation openings.





Fuel filling:

Insert special tool 16 1 080 16 1 080 Hose Guide into filler neck.

Special tool 16 1 080 16 1 080 Hose Guide has two different diameters for gasoline and diesel vehicles!

Slide extraction hose of extractor unit, refer to BMW Service Workshop Equipment and Planning Documentation, approx. 40 cm into fuel filler pipe.

Fill fuel from suction extractor unit.





Drawing off after fault in suction jet pump:

Draw off right half of tank completely through filler pipe.

Remove sensor for fuel gauge (left) 16 12 001 Removing and Installing/Replacing Fuel Gauge Sensor (Left Side).

Insert extraction hose through sensor opening in tank, fuel (also residual quantity) can be drawn off.