BMW 7 Series: Electronic Power Steering
ADJUSTMENT/INITIAL OPERATION FOR ACTIVE FRONT STEERING
NOTE: Adjustment/start-up of the active steering must be carried out:
- Before adjustment work on the front axle/steering
- After work on the steering column
- After replacement of following components:
- Active front steering control unit
- ICM control unit
- Steering-column switch cluster (SZL)
- Steering gear
Connect vehicle to BMW diagnosis system.
Select and carry out initial operation/adjustment for active front steering
under Service functions.
REMOVING AND INSTALLING/REPLACING CONTROL UNIT FOR ACTIVE FRONT STEERING
IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC
DISCHARGE (ESD PROTECTION).
Necessary preliminary work
- Disconnect BATTERY EARTH LEAD
- RELEASE LEFT FRONT SEAT and tilt towards rear
- Remove front left DOOR SILL COVER STRIP
- Remove footwell SIDE TRIM PANEL on A-pillar
- Remove cover of BASS SPEAKER at left front
Fold back front left carpet to one side.
Unscrew nuts (1).
Tightening torque 32 43 1AZ.
Installation note:
Secure grounding strap (2) to screw fastening point.
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Fig. 180: Identifying Strap And Nut
Release screws (1).
Tightening torque 32 43 2AZ.
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Fig. 181: Identifying Screws
Disconnect plug connections (1) and remove control unit.
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Fig. 182: Identifying Control Unit Plug Connections
After installation
- Replacement only: Carry out PROGRAMMING/ENCODING
- ADJUSTMENT FOR ACTIVE STEERING
STARTUP OF ICM CONTROL UNIT
NOTE: Startup of ICM control unit must be carried out:
- After replacement or removal and installation of ICM control unit
Connect vehicle to BMW diagnosis system.
Select and carry out startup of ICM control unit under Service functions of BMW
scan tool.
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Proper adjustment of the brake system is only possible if the brake Bowden
cables and all brake system
moving parts move freely and are ready for operation.
The wheels must be completely fitted and
SEE MORE:
REPAIR INSTRUCTIONS FOR BONDED SEALS
1. General information on handling rubber seal profiles
If seals reveal partly detached protective film on delivery, they must
not be bonded.
Store seals at 5ºC to 40ºC.
If, during the handling, the protective film has come off before
bonding, it can st
IMPORTANT: In event of oil loss, always check rear axle final drive for
traces of wear and
damage.
Necessary preliminary work
Catch or draw off final drive oil.
Remove REAR AXLE FINAL DRIVE.
NOTE: Read and comply with REAR DIFFERENTIAL: ASSIGNMENT TO MODEL
SERIES.
IMPORTANT: To avoid leaks from