Necessary preliminary tasks

WARNING: This page does not describe the selected car, but rather 25 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 740i, 2015 BMW 740Li, and 2014 BMW Alpina B7L. However, it is still accessible from the selected car via links, so may be relevant.

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 1: Identifying Sound Insulation

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Unscrew nuts (1).

Remove cover for service opening (2).

Fig 2: Identifying Sound Insulation Cover Mounting Nuts

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Disconnect plug connection (1).

Disconnect fuel line (2).

If necessary, disconnect fuel line for independent heating.

Installation:

Check seal (3), replace if necessary.

Fig 3: Identifying Plug Connection, Fuel Line And Oil Seal

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Vehicles with outer fuel filter (S1AKA):

Disconnect plug connection (1).

Disconnect fuel lines (2).

Installation:

Check seal (3), replace if necessary.

Fig 4: Identifying Plug Connection, Fuel Line And Oil Seal (Vehicles With Outer Fuel Filter)

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Release plastic nuts (1).

Installation:

Check plastic nuts (1), replace if necessary.

Tightening torque 16 12 2AZ .

Fig 5: Identifying Plastic Nuts

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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 6: Identifying Hose Clip And Quick-Release Coupling

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Installation:

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

Fig 7: Identifying Fuel Lines

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Release screws (1).

Installation:

Tightening torque 16 11 1AZ .

Fig 8: Identifying Fuel Tank Mounting Screws

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IMPORTANT: Secure fuel tank against slipping and falling out.

Heavily support the fuel tank.

Fig 9: Identifying Fuel Tank With Support

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Release screws (1).

Installation:

Tightening torque 16 11 2AZ .

Lower fuel tank.

Fig 10: Identifying Fuel Tank Mounting Screws

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If necessary, disconnect fuel line for independent heating.

Remove fuel tank.