BMW 7 Series: Front Axle Suspension
REMOVE AND INSTALL/REPLACE STIFFENING PLATE (ALL-WHEEL DRIVE)
IMPORTANT: Observe safety instructions for raising the vehicle Driving without stiffening plate is not permissible!
Necessary preliminary work
- Remove UNDERBODY PROTECTION in front and rear
Release screws (1).
Remove stiffening plate (reinforcement plate) (2).
Installation note: Replace screws.
Tightening torque 31 10 2AZ.
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Fig. 15: Identifying Stiffening Plate (Reinforcement Plate) With Screws
REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION
Graphic is only an example. Detail deviations depending on model or engine version are possible.
Unscrew all bolts.
Remove underbody protection (1) in direction of arrow from bumper trim (2).
Installation note: Make sure underbody protection (1) is correctly seated.
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Fig. 16: Removing Underbody Protection From Bumper Trim
REMOVING AND INSTALLING/REPLACING REAR UNDERBODY PROTECTION
Necessary preliminary tasks
- Remove FRONT UNDERBODY PROTECTION
Unscrew all bolts.
Remove underbody protection (1).
Installation: Make sure underbody protection (1) is correctly seated.
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Fig. 17: Locating Underbody Protection Bolts
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Front Sub-Frame
Lowering/Raising Front Axle Support (Universal Lifter)
Notes
IMPORTANT: Before lowering front axle support:
Observe SAFETY INFORMATION on raising the vehicle.
In order to avoid damage to vehicle hois
Removing And Installing/Replacing Top Right Wishbone
NOTE: Control arms 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
SEE MORE:
Replacing Center Mount Gaiter
Necessary preliminary work
Remove PROPELLER SHAFT.
NOTE: The propeller shaft is balanced.
The front and rear propeller shafts must be reassembled in the same position.
Detach gaiter (1) from groove (2).
Mark front propeller shaft (3) and rear propeller shaft (4) in one plane.
Fig. 34: Marking
Safety At Work
1.1 Working with aluminium dust
Wear a fine dust mask.
E52 only: Use an explosion-proof extractor system (refer to Service
Information 5 01 00 532).
Note national regulations.
1.2 Removing sealant
Hydrochloric acid is created when PVC sealing material is heated to
temperatures in excess o
