BMW 7 Series: Replacing Rear Axle Support
IMPORTANT: Before removing rear axle support: In order to avoid damage to vehicle hoist, perform weight compensation on vehicle.
Load luggage compartment with sand bags.
Necessary preliminary work
- Remove REAR AXLE FINAL DRIVE
- Remove REAR AXLE SUPPORT
Remove brake lines.
Remove anti-roll bar.
Version with Dynamic Drive: Disconnect control lines for swivel motor of rear axle from rear axle support.
Remove ACTUATOR UNIT (PARKING BRAKE).
Remove RIDE HEIGHT SENSOR(S).
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Fig. 84: Identifying Brake Lines, Anti-Roll Bar, Actuator Unit And Ride
Height Sensor
Remove both swinging arms on rear axle support.
Remove both wishbones on rear axle support.
Remove both toe arms on rear axle support.
Remove both wheel carriers with output shaft, swinging arm and wishbones.
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Fig. 85: Identifying Swinging Arms, Wishbones And Toe Arms
Take rear axle support down from special tool with assistance of a 2nd person and set down on a suitable surface.
Installation note: Use previous rear axle support as a template for modifying or replacing small parts.
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Fig. 86: Identifying Rear Axle Support
After Installation note
- If necessary, run COMMISSIONING of Dynamic Drive
- Carry out RIDE HEIGHT ADJUSTMENT
- Adjusting PARKING BRAKE
- Perform CHASSIS/WHEEL ALIGNMENT CHECK
READ NEXT:
Removing And Installing/Replacing A Steering Stub/Wheel Carrier
Remove REAR WHEEL.
IMPORTANT: Expand anti-twist lock sufficiently to avoid damaging thread
when releasing
collar nut.
Release collar nut (1), activate parking brake for this purpose.
Installation no
Removing And Installing/Replacing Left Or Right Antiroll Bar
Link/Integral Link
NOTE: If the integral link is detached from the swinging arm, it is
necessary after
installation to carry out a chassis/wheel alignment check.
Necessary preliminary work
Remove REAR WHEEL.
Release
SEE MORE:
Removing And Installing/Replacing RDC Reception Aerial
Necessary preliminary tasks
Remove front left UNDERBODY PANELLING
Disconnect plug connection (1).
Gently press retaining tabs apart in direction of arrow and remove RDC aerial
(2).
Fig. 46: Press RDC Aerial Retaining Tabs Apart
REMOVING AND INSTALLING/REPLACING A TIRE PRESSURE CONTROL
ELECTRON
System Overview
Input/Output - Comfort Access
Fig. 1: Comfort Access Input/Output Diagram
COMPONENTS DESCRIPTION CHART
CAS 4 Car Access System 4
Footwell module (FRM)
Junction box electronics (JB)
Emergency start coil (transponder coil)
Central locking button 12 Driver's door lock cylinder
ID transmitter
D
