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.
READ NEXT:
Adjusting Brake System
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:
Removing And Installing/Renewing Pressure Lines For Valve Block
(Short)
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).
Welding Steel Components
IMPORTANT: Comply with the following topics from "Body, General":
Safety regulations.
Handling electrical/electronic equipment, airbags and restraint systems.
1. General information
The following procedures are used for repairs:
MAG welding (M etal Ac tive G as welding)
Resistance pressure sp
