BMW 7 Series: Removing And Installing Complete Rear Axle Support
Notes
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 WHEELS
- Remove EXHAUST SYSTEM
- Remove PROPELLER SHAFT from rear axle
- Expose CABLE FOR EMERGENCY RELEASE UP TO REAR AXLE SUPPORT
- Disconnect PLUG CONNECTION ON ACTUATOR UNIT (PARKING BRAKE)
- Unclip lines for pulse sensor and brake pad wear sensor
- If necessary, disconnect PRESSURE LINES to swivel motor at active stabilizer
- Disconnect plug connection at both ride height sensors
- Remove BOTH REAR SHOCK ABSORBERS FROM WHEEL CARRIER
- REMOVE BOTH BRAKE CALIPERS ON WHEEL CARRIER and tie back
Engage special tool 31 5 251 with a 2nd person helping completely on workshop jack 00 2 030.
Insert special tools 31 5 255 in telescopic supports of a profile rail pair.
NOTE: In a profile rail pair, two profile rails are connected to one another by gearing.
Insert special tools 31 5 253 in telescopic supports of other profile rail pair.
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Fig. 81: Inserting Special Tools (31 5 255) In Telescopic Supports Of Profile
Rail Pair
NOTE: The mounting points on the left side are shown.
Align special tool 31 5 255 to opening in rear axle support.
Align special tool 31 5 253 to cross member arms on rear axle support.
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Fig. 82: Aligning Special Tool (31 5 255) And (31 5 253) To Rear Axle Support
Release screws (4).
Tightening torque 33 33 1AZ.
Installation note: Arrow (1) on stop plate (2) must point in direction of travel! Remove FRONT COMPRESSION STRUTS (3).
Carefully lower rear axle support and remove.
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Fig. 83: Identifying Stop Plate Installation Position
After Installation note
- ADJUSTING PARKING BRAKE
- If necessary, carry out COMMISSIONING FOR DYNAMIC DRIVE
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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
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
SEE MORE:
Straightening Aluminium Components In Structure
Reshaping or heating extruded sections and cast parts is not
permitted!
Failure to comply with this requirement would have the following
results:
In the case of reshaping, weld seams (E52) or glued connections (E60, E61,
E63, E64) tear in the
surrounding area.
In the case of reshaping, t
Removing And Refitting/Replacing Pressure Line On Swivel Motor
VA2
Notes
WARNING: DANGER OF POISONING if oil is ingested/absorbed through the
skin!
RISK OF INJURY if oil comes into contact with eyes and skin!
IMPORTANT: Adhere to the utmost cleanliness. Do not allow any dirt to
enter the hydraulic
system.
Do not draw off hydraulic fluid (risk of contamination).
