32 13 572 Replace electrical steering box (EPS): Notes
Check connection of steering box for corrosion, clean contacts if necessary. The steering box must be replaced if the corrosion is too far advanced.
Connecting line:
In the event of moisture/corrosion inside the two plug connections, check the insulation of the connecting line. If the insulation reveals any noticeable/striking features, partial replacement will be necessary.
Otherwise it will be sufficient to replace the contacts or connector housing.
Necessary preliminary tasks:
- Disconnect BATTERY EARTH LEADNOTE: High-current-carrying line laid with permanent positive connection (80 A fuse).
- REMOVE both track rod ends from swivel bearing
- Replacement: REMOVE both track rod ends from steering box
- Lower FRONT AXLE SUPPORT
Release screws (1).
Installation note:
Tightening torque 32 00 1AZ .
Collision with other components may result in damage to the steering box!
First swing steering box (1) in direction of travel to right and then remove towards front.
For R55/R56/R57 only:
Remove BOTH TRACK RODS ON STEERING BOX .
Remove both steering top limiters (1).
Installation note:
Deformation elements (2) must point to steering box (3).
After installation:
- Replacement only: Carry out PROGRAMMING/ENCODING
- Perform wheel alignment check. See ALIGNMENT CHECK WITH VEHICLE LOAD UP TO DESIGN POSITION or ALIGNMENT CHECK WITH RIDE HEIGHT MEASUREMENT WITHOUT VEHICLE LOAD