Drawing off fuel
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Start engine and allow to run.
The electric fuel pump runs.
In this way, the fuel is repumped through the suction jet pump from the left to the right side of the fuel tank.
NOTE:
Fuel can be drawn out of left and right sides of tank through filler neck, leaving only a small residue. The residual amount is drawn off via the service opening.
Insert special tool 16 1 080 into fuel filler neck.
Special tool 16 1 080 has two different diameters for petrol/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 into the fuel filler pipe, turning in the process if necessary.
Insertion length approx. 170 cm.
Draw off fuel with suction unit (refer to BMW Service Workshop Equipment) as far as possible.
Follow drawing off of fuel on fuel gauge in instrument cluster.