BMW 7 Series: Removing And Installing/Replacing Fuel Filter With Pressure Regulator

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: Ensure adequate ventilation in the place of work! Avoid skin contact (wear gloves)! Ensure absolute cleanliness when working on the open fuel system.

Contaminants in the fuel tank can impair driving operation or may even result in vehicle breakdown!

Necessary preliminary tasks:

• DRAW OFF FUEL
• REMOVE REAR SEAT
• Vehicles with comfort seat:

Remove right REAR SEAT

• REMOVE FLANGE COVER
• Remove FUEL PUMP

NOTE: Picture does not show the fuel tank outer skin.

Unclip grounding cable (1) and feed out of holders.

Disconnect fuel line (2).

Press pressure regulator together at tabs (4) and detach in upward direction.

Unlock fuel filter (3) and pull out.

Fig. 16: Identifying Fuel Filter, Grounding Cable, Pressure Regulator Tabs And Fuel Line

REMOVING AND INSTALLING/REPLACING FUEL TANK (PETROL/GASOLINE)

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: Ensure adequate ventilation in the place of work! Avoid skin contact (wear gloves)! After installation of fuel tank/prior to first engine start-up:

• Check ground connection at fuel filler neck to body for continuity. If necessary, clean contact surface between body and fuel filler pipe screw connection.
• Fill fuel tank with at least 5 liters of fuel.

Necessary preliminary tasks

• Draw off FUEL from fuel tank
• Remove REAR SEAT
• Vehicles with comfort seat:

Remove right REAR SEAT

• Remove rear right WHEEL ARCH TRIM
• Remove PROPELLER SHAFT
• Remove TENSION STRUT on left and right

For F02 rear air conditioners:

• Remove refrigerant lines

Remove sound insulation (1).

Fig. 17: Identifying Sound Insulation

Unscrew nuts (1).

Remove cover for service opening (2).

Fig. 18: Identifying Sound Insulation Cover Mounting Nuts

Disconnect plug connection (1).

Disconnect fuel line (2).

If necessary, disconnect fuel line for independent heating.

Installation: Check seal (3), replace if necessary.

Fig. 19: Identifying Plug Connection, Fuel Line And Oil Seal

Vehicles with outer fuel filter (S1AKA):

Disconnect plug connection (1).

Disconnect fuel lines (2).

Installation: Check seal (3), replace if necessary.

Fig. 20: Identifying Plug Connection, Fuel Line And Oil Seal (Vehicles With Outer Fuel Filter)

Release plastic nuts (1).

Installation: Check plastic nuts (1), replace if necessary.

Tightening torque 16 12 2AZ.

Fig. 21: Identifying Plastic Nuts

IMPORTANT: There may be residual amounts of fuel in the tank.

Catch escaping fuel in a suitable container.

Unfasten hose clip (1).

Installation: Check hose clamp (1), replace if necessary.

Tightening torque 16 12 1AZ.

Release quick-release coupling (2). Detach line.

Detach fuel filler pipe.

Fig. 22: Identifying Hose Clip And Quick-Release Coupling

Installation: Make sure lines (1) and (2) are correctly seated in holder.

Fig. 23: Identifying Fuel Lines

Release screws (1).

Installation: Tightening torque 16 11 1AZ.

Fig. 24: Identifying Fuel Tank Mounting Screws

IMPORTANT: Secure fuel tank against slipping and falling out.

Heavily support the fuel tank.

Fig. 25: Identifying Fuel Tank With Support

Release screws (1).

Installation: Tightening torque 16 11 2AZ.

Lower fuel tank.

Fig. 26: Identifying Fuel Tank Mounting Screws

If necessary, disconnect fuel line for independent heating.

Remove fuel tank.

Replacement

• Convert flange cover.
• Convert fuel pump.
• Convert pressure regulator.
• Convert TANK FILL LEVEL SENSOR.

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