BMW 7 Series: Removing And Installing/Replacing Fuel Tank Filler Hose

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 right WHEEL ARCH TRIM

Release plastic nuts (1).

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

Tightening torque 16 12 2AZ.

Fig. 27: Identifying Plastic Nuts

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

Catch escaping fuel in a suitable container.

Unfasten hose clip (2).

Installation: Check hose clamp (2), replace if necessary.

Tightening torque 16 12 1AZ.

Fig. 28: Identifying Filler Hose, Hose Clamp And Quick-Release Coupling

Release quick-release coupling (1).

Detach fuel filler pipe from filler hose (3).

Release hose clamp (4) and remove filler hose (3).

Installation: Check hose clamp (4), replace if necessary.

Tightening torque 16 12 1AZ.

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

Fig. 29: Identifying Fuel Lines

REPLACING CLAMPING BANDS FOR FUEL TANK

Necessary preliminary tasks

• F03: Remove underbody panelling

IMPORTANT: Secure fuel tank against slipping and falling out.

Fig. 30: Identifying Fuel Tank With Support

Generously support the fuel tank.

Release screws (1).

Installation: Tightening torque 16 11 2AZ.

Remove tightening strap (2).

Fig. 31: Identifying Tightening Strap With Mounting Screws

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