32 13 070 Removing And Installing (Replacing) Electric Steering Box (EPS)

WARNING: This page is about a different car, the 2010 BMW 135i, 2009 BMW 135i, and 2008 BMW 135i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT:

Steering gear:

Check connection of steering gear for corrosion, clean contacts if necessary. The steering gear must be replaced if the corrosion is too far advanced.

Connecting cable:

In the event of moisture/corrosion inside the two plug connections, check the insulation of the connecting cable. If the insulation reveals any noticeable/striking features, it will be necessary to replace the part. Otherwise it will be sufficient to replace the contacts or plug housing.

NOTE: In a warranty case you must always provide a fault memory printout, even where there is no fault memory entry, with the defective part.

Necessary preliminary tasks:

Disconnect battery negative lead. See BATTERY NEGATIVE LEAD (COUPE) or BATTERY NEGATIVE LEAD (CONVERTIBLE) .
NOTE: High-current-carrying lead laid with permanent positive connection (80A fuse protection).
Remove front underbody protection. See REMOVING AND INSTALLING/REPLACING FRONT UNDERBODY PROTECTION .
E88, E93: Remove V-strut on left and right
Remove LOWER SECTION OF STEERING SPINDLE FROM STEERING GEAR
Remove both TIE ROD ENDS FROM SWIVEL BEARING
Replacement: Remove BOTH TIE ROD ENDS FROM STEERING GEAR

Cut open cable tie (1).

Disconnect plug connections (2).

Installation:

Check plug connections for moisture and corrosion. To do so, read and follow notes/information at the beginning of this procedure.

Plug connections must audibly snap into place.

Make sure connecting lead is correctly laid.

Fig 1: Identifying Cable Tie And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts and remove screws (1) towards bottom.

Remove steering gear (2) towards front.

Installation:

Replace screws and nuts.

Tightening torque 32 00 1AZ .

Fig 2: Identifying Steering Gear & Screws

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Replacement: Carry out PROGRAMMING/CODING
Teach in end stop software
Perform CHASSIS ALIGNMENT CHECK
Carry out steering angle sensor adjustment. See ADJUSTMENT FOR ACTIVE FRONT STEERING / CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT .