Draining and Filling Fuel Tank

Draining And Filling Fuel Tank







CAUTION!
Observe according 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.
Carefully withdraw extraction hose so as not to damage non-return flap.







After completing repairs and before starting engine for first time, fill fuel tank through fuel filler pipe with min. 5 ltr. fuel.

M47, M57
Before starting the engine for the first time, if the tank has been run empty or drawn oft, pour in 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. Electric fuel delivery pump runs. This pumps the fuel through the suction jet pump and the tank expansion line from the left to the right side of the fuel tank.


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







Slide extraction hose of extractor unit,
refer to BMW Service Workshop Equipment & Planning documentation, into filler pipe, turning hose slightly if necessary.

Insertion length:
130 cm

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:







CAUTION!
Ensure the vehicle interior is adequately ventilated.
Catch dripping fuel in a suitable container.
Remove sensor for fuel gauge (right).
Remove sensor for fuel gauge (left).
Draw off residual fuel quantity through installation openings.







Fuel filling:
Slide extraction hose of extractor unit,
refer to BMW Service Workshop Equipment & Planning documentation, approx. 40 cm into filler pipe.
Fill fuel from 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).
Insert extraction hose through sensor opening in tank, fuel (also residual quantity) can be drawn off.