31 12 002 Removing and installing/replacing top left control arm: Notes

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Control arms with + or - marking (see illustration) are camber correction arms:

- Underdimension variant

+ Overdimension variant

These camber correction arms are used to correct the camber values by 30 minutes. To be used only if the tolerance values are exceeded or undershot!

An unmarked control arm is a standard part.

Fig 1: Identifying Under And Over Dimension Variant Of Control Arm

Courtesy of BMW OF NORTH AMERICA, INC.

Necessary preliminary work:

Remove FRONT WHEEL .
Vehicles with Dynamic Drive: If necessary, remove OIL RESERVOIR FOR HYDRAULIC STEERING from the left wheel arch.

N63 (with water-cooled DME control unit):

Unscrew screws (1) and (2).

Lay DME control unit with holder and oil reservoir to one side.

Fig 2: Identifying DME Control Unit Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) on control arm (2) and remove.

Tightening torque 31 12 5AZ .

Installation note:

Replace nut.

Fig 3: Identifying Control Arm With Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Secure swivel bearing (1) 33 5 206 with tensioning belt to spring (2).

Fig 4: Identifying Swivel Bearing And Spring

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove ride height sensor jointed rod from control arm.

Installation note:

Replace self-locking nut.

Tightening torque 37 14 5AZ

Release nut (2) and remove bolt (3).

Tightening torque 31 12 6AZ .

Installation note:

Keep control arm to swivel bearing connection clean and free from oil and grease.

Note direction of insertion of screw.

Screw must rest correctly in groove of ball stud!

Replace nut.

Tighten control arm as far as it will go in relation to swivel bearing.

Fig 5: Identifying Control Arm Nut And Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove screw.

Tightening torque 31 12 7AZ .

Release spring strut from control arm (2).

Installation note:

Replace self-locking nut.

Tighten in NORMAL POSITION .

Fig 6: Identifying Spring Strut On Lower Control Arm

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Tightening torque 31 12 5AZ .

Pull spring strut outwards and remove screw (1).

Remove control arm (2).

Installation note:

Replace nut.

Fig 7: Identifying Control Arm And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT:

Risk of damage!

Observe assembly sequence.

Upper control arm must be screwed in normal position! (See ADJUSTING NORMAL POSITION ).

Insert bolt (2) (do not tighten down)
Adjust upper control arm to body to dimension (A).
Tighten screw (2).
Tightening torque 31 12 5AZ .
Tighten screw (1).
Tightening torque 31 12 5AZ .
Tighten spring strut/control arm (lower) screw connection.
Tightening torque 31 12 7AZ .
Tighten control arm/swivel bearing (3) screw connection.
Tightening torque 31 12 6AZ .

Fig 8: Identifying Control Arm/Swivel Bearing And Screws
Courtesy of BMW OF NORTH AMERICA, INC.