BMW 7 Series: Drive, Seat Adjustment
REMOVING AND INSTALLING/REPLACING LUMBAR SUPPORT DRIVE MECHANISM ON FRONT SEAT, LEFT OR RIGHT
Necessary preliminary tasks
- Remove rear panel on front seat backrest.
Unfasten plug connection (1) and disconnect.
Release clips (2).
Feed out drive unit for lumbar support in upward direction.
Installation: Replace faulty clips (2).
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Fig. 68: Removing Lumbar Support Drive Unit In Upward Direction
Release cable tie (1) from jacket (2).
Feed out drive unit for lumbar support out of jacket (2).
Detach hose (3).
NOTE: Gently heat hose (3) if stuck.
Installation: Make sure hose (3) is laid without kinks.
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Fig. 69: Identifying Lumbar Support Drive Unit Cable Tie, Jacket And Heat
Hoses
Electrical Drives - Tightening Torques
DRIVE, SEAT ADJUSTMENT
TIGHTENING TORQUE SPECIFICATION - DRIVE, SEAT ADJUSTMENT
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MOTORS, POWER WINDOW REGULATOR
TIGHTENING TORQUE SPECIFICATION - MOTORS, POWER WINDOW REGULATOR
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Front seats- Lumbar support
Concept
The curvature of the seat backrest can be adjusted
in a way that it supports the lumbar region of the spine. The lower back and the
spine are
supported for upright posture.
Adjusting
Press the front/rear
section of
the button:
The curvature is increased/
decreased.
Press the upper/l
Replacing Crankshaft Pulse Generator (N63)
Necessary preliminary work
Read out the fault memory of the DME control unit.
Switch off ignition.
Remove rear UNDERBODY PROTECTION.
Installation location
On transmission housing at bottom right.
Release connector (1) and remove.
Release screw (2).
Tightening torque 13 62 4AZ.
Withdraw puls
