Procedures

16 00 005 Draining And Filling Fuel Tank







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:
- Make sure the work bay is adequately ventilated.
- Connect an exhaust extractor system to exhaust tailpipe.
- Carefully withdraw extraction hose so as not to damage non-return flap.
- The electric fuel pump must not operate without fuel.
- On conclusion of repair work and before starting the engine for the first time, the fuel tank must be filled via the fuel filler pipe with at least 5 litres of fuel.







Drawing off fuel:
Start engine and allow to run. The electric fuel pump runs.

NOTE:
The pump delivers fuel via 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).







Feed suction hose (1) of extractor unit (refer to BMW Workshop Equipment & Planning Documentation) into filler pipe. In so doing, turn hose slightly if necessary.
Insertion length: 90 cm
Draw off fuel with suction extractor unit as far as possible.
Observe the fuel gauge in the instrument cluster while extracting fuel.

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







IMPORTANT:
Make sure vehicle interior is adequately ventilated.
Catch dripping fuel in a suitable container.
Remove fuel filter with fuel level sensor (right) (50-litre tank only). Remove delivery unit (left).
Draw off residual fuel quantity through installation openings.







Fuel filling:
Slide suction hose (1) of extractor unit approx. 40 cm into fuel filler pipe. In so doing, turn hose slightly if necessary.
Fill fuel from suction extractor unit.