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16 00 005 Draining and filling fuel tank

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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 off, 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 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).

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.

Fig 1: Drawing Off Fuel
G03123762Courtesy of BMW OF NORTH AMERICA, INC.

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). See 16 12 000 Removing and installing/replacing fuel level sensor (right) (complete unit) 

Remove sensor for fuel gauge (left). See 16 12 001 Removing and installing / replacing fuel level sensor (left) (complete unit) 

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.

Fig 2: Filling Fuel
G03123763Courtesy of BMW OF NORTH AMERICA, INC.

Drawing off after fault in suction jet pump: 

Draw off right half of tank completely through filler pipe.

Remove sensor for fuel gauge (left). See 16 12 001 Removing and installing / replacing fuel level sensor (left) (complete unit) 

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

Fig 3: Drawing Off After Fault In Suction Jet Pump
G03123764Courtesy of BMW OF NORTH AMERICA, INC.
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