BMW 7 Series: Removing And Installing/Replacing Top Left Wishbone
Notes
NOTE: Wishbones with + or - marking (see graphic) 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.
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Fig. 39: Identifying Under And Over Dimension Variant Of Control Arm
Necessary preliminary work
- Remove FRONT WHEEL.
- IF NECESSARY, REMOVE OIL RESERVOIR FOR HYDRAULIC STEERING from the left wheel arch.
- Remove E-BOX ON RIGHT WHEEL ARCH, IF NECESSARY.
Release nut (1) on wishbone (2) and remove.
Tightening torque 31 12 5AZ.
Installation note: Replace nut.
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Fig. 40: Identifying Wishbone With Nut
Secure swivel bearing (1) 33 5 206 with tensioning belt to spring (2).
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Fig. 41: Identifying Swivel Bearing And Spring
Release nut (1) and remove ride height sensor jointed rod from wishbone.
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 wishbone 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 wishbone as far as it will go in relation to swivel bearing.
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Fig. 42: Identifying Wishbone Nut And Bolt
Release spring strut (1) on lower wishbone (2).
Tightening torque 31 12 7AZ.
Installation note: Replace self-locking nut.
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Fig. 43: Identifying Spring Strut On Lower Wishbone
Release screw (1).
Tightening torque 31 12 5AZ.
Pull spring strut outwards and remove screw (1).
Remove wishbone (2).
Installation note: Replace nut.
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Fig. 44: Identifying Wishbone And Screws
IMPORTANT: Risk of damage!
Observe assembly sequence.
Upper wishbone must be screwed in normal position! (Adjustment of normal position, see below).
1. Insert bolt (2) (do not tighten down).
2. Adjust upper wishbone to body to dimension (A).
3. Tighten screw (2).
Tightening torque 31 12 5AZ.
4. Tighten screw (1).
Tightening torque 31 12 5AZ.
5. Tighten spring strut/wishbone (lower) screw connection.
Tightening torque 31 12 7AZ.
6. Tighten wishbone/swivel bearing (3) screw connection.
Tightening torque 31 12 6AZ.
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Fig. 45: Identifying Wishbone/Swivel Bearing And Screws
Adjusting normal position
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Fig. 46: Adjusting Normal Position
Installation note:
Secure control arm (1) to body vertically to dimension (A) = 85 mm.
READ NEXT:
Replacing Rubber Mount In Left Or Right Trailing Link
Notes
IMPORTANT: Rubber mount may only be renewed once!
Necessary preliminary tasks
Check ball joints of tension links while installed, replace TRAILING
LINK if necessary
Remove TRAILING LINK
IM
Wheel Bearings And Stub Axle
REPLACING BEARINGS (WHEEL HUB) FOR FRONT WHEEL
Necessary preliminary tasks
Remove BRAKE DISC
Remove FRONT PULSE GENERATOR
NOTE:
Check brake pads and renew if necessary!
Slacken nut (1).
Tight
SEE MORE:
Safety Information For Working On Vehicles With Automatic Engine Start-Stop
Function (MSA)
WARNING: If the engine hood/bonnet contact is pulled upwards (workshop
mode),
the information "switch closed" is output. The automatic engine start-stop
function is active.
An automatic engine start is possible.
Observe safety precautions when working on MSA vehicles
Before carrying out practical
Replacing Actuator Drive For Fresh Air/Ram Air
Necessary preliminary work
REMOVE AUXILIARY ELECTRONICS BOX
Unlock plug connection (1) on AUC sensor and disconnect.
Fig. 46: Identifying Plug Connection On AUC Sensor
Release screws (1) on blower housing cover (2).
Lift out blower housing cover.
Fig. 47: Identifying Blower Housing Cover Screw
