BMW 7 Series: Lowering/Raising Rear Axle Support
Notes
IMPORTANT: Before lowering rear axle support: Observe SAFETY INSTRUCTIONS on raising the vehicle.
In order to avoid damage to lifting platform, perform weight compensation on vehicle.
Load luggage compartment with sand bags.
Necessary preliminary tasks
- Remove REAR WHEELS
- F03 only: Remove underguard, side
- Remove EXHAUST SYSTEM
- Remove PROPELLER SHAFT from rear axle
- Expose CABLE FOR EMERGENCY RELEASE UP TO REAR AXLE CARRIER
- Release and disconnect PLUG CONNECTION ON ACTUATING UNIT (EMF)
- REMOVE BOTH BRAKE CALLIPERS ON WHEEL CARRIER and tie back
- Unclip lines for pulse generator and brake pad wear sensor from brackets
- Unlock and disconnect plug connection on both ride height sensors
- Remove BOTH SPRING STRUTS FROM WHEEL CARRIER
Engage 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 each by toothing.
Insert special tools 31 5 253 in telescopic supports of other profile rail pair.
.png)
Fig. 76: Inserting Special Tools (31 5 255) In Telescopic Supports Of Profile
Rail Pair
Version without Dynamic Drive:
The jacking points on the left side are shown.
Align special tool 31 5 255 with opening in rear suspension subframe.
Align special tool 31 5 253 with cross-member arms on rear suspension subframe.
.png)
Fig. 77: Aligning Rear Suspension Subframe Using Special Tool (31 5 255) And
(31 5 253)
Version with Dynamic Drive and Integral Active Steering:
Schematic diagram of rear mounting point (link side) for special tool 31 5 253.
The front mounting point for special tool 31 5 255 is identical - version without Dynamic Drive.
.png)
Fig. 78: Schematic Diagram Of Rear Mounting Point For Special Tool (31 5 253)
Release screws (4).
Tightening torque 33 33 1AZ.
Installation: Arrow (1) on stop plate (2) must point in direction of travel! Remove FRONT COMPRESSION STRUTS (3).
Carefully lower rear axle carrier.
.png)
Fig. 79: Identifying Arrow, Front Compression Strut, Screws And Stop Plate
F03 only: Remove FRONT COMPRESSION STRUTS (1).
Remove rear tension struts (2) and carefully lower rear axle carrier.
.png)
Fig. 80: Identifying Front Tension Struts And Rear Tension Struts
After installation
- ADJUST PARKING BRAKE
READ NEXT:
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 w
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
SEE MORE:
Adjusting Camshaft Timing On Left Side (N63)
Notes
IMPORTANT: Release central bolts on adjuster only with special tool 11 9
890.
Risk of damage to timing drive.
If special tool 11 9 890 can not be fitted, it is necessary when releasing the
central bolt to grip the hexagon head of the respective camshaft.
(cylinder bank 5 to 8)
Necessary pre
Cellular Telephone
REMOVING AND INSTALLING (REPLACING) TELEMATIC COMMUNICATION BOX
IMPORTANT: Read and comply with notes on protection against electrical
damage (ESD
PROTECTION).
Comply with notes and instructions on HANDLING OPTICAL FIBRES.
Necessary preliminary work:
Clamp off BATTERY NEGATIVE LEAD.
Remove LEFT
