31 12 050 Removing and installing/replacing left or right trailing link: Notes

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove FRONT WHEEL .
Remove FRONT ASSEMBLY UNDERSIDE PROTECTION .

Release collar bolt (1), press brake pedal to floor for this purpose.

Tightening torque 31 60 2AZ .

Fig 1: Identifying Collar Bolt

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Installation note:

Replace collar bolt (1) and compression spring (2).
Pay attention to direction of installation of compression spring!
Keep collar bolt and spur gearing of bearing/output shaft clean and free of grease.

Fig 2: Identifying Collar Bolt And Compression Spring
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IMPORTANT: See "installation note" on SPUR GEAR .

Release screws (1).

Remove front wheel arch cover (2) from bumper trim.

Installation note:

Make sure wheel arch cover is correctly positioned.

Fig 3: Identifying Wheel Arch Cover And Mounting Screws

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Release nut (1) and remove screw (2).

Tightening torque 31 12 1AZ .

Remove tension strut (3) from front axle support.

Installation note:

Replace screw and nut.

Observe assembly sequence.

Fig 4: Identifying Tension Strut, Mounting Nut And Screw

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IMPORTANT: Do not release tension strut from swivel bearing with impact tool.
The swivel bearing must be removed if the steel bushing moves.
Rubber boot of trailing link must not be damaged!
Do not pull stainless steel ring off journal.

Release nut (1) and remove trailing link (2) from swivel bearing.

Tightening torque 31 12 2AZ .

Installation note:

Replace self-locking nut (1).

Keep tension strut to swivel bearing connection clean and free from oil and grease.

Fig 5: Identifying Trailing Link And Mounting Nut

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Risk of damage!

Observe assembly sequence.

Trailing link must be screwed in normal position!

(Adjustment of normal position, see below).

Installing tension strut:

Install trailing link on front axle support (do not tighten down screw connection).
Adjust trailing link to swivel bearing to dimension (A) and tighten on front axle support.
Tightening torque 31 12 1AZ .

Dimension (A) = 2 cm (vehicle on vehicle hoist, spring strut rebounded)

NOTE: Installing the trailing link to dimension (A) corresponds to the normal position in the compressed state!

Fig 6: Measuring Trailing Link To Swivel Bearing Adjustment Dimension
Courtesy of BMW OF NORTH AMERICA, INC.
Press trailing link into swivel bearing and tighten trailing link/swivel bearing.
Tightening torque 31 12 2AZ .