Necessary preliminary tasks

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Disconnect BATTERY NEGATIVE LEAD
Remove FRONT LEFT WHEEL ARCH COVER (REAR SECTION)

Release screw (1) and remove grounding cable.

Unlock plug (2) with a suitable tool and detach.

Open cable tie (arrowed).

Unclip cable holder (4).

Unlock plug (3) with a suitable tool and detach.

Installation:

Replace faulty cable holder (4).

Fig 1: Identifying Cable Holder, Plug And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nut (1).

Tightening torque 32 43 1AZ .

Release screw (2).

Tightening torque 32 43 1AZ .

Remove active front steering control unit (3).

Fig 2: Identifying Active Front Steering Control Unit With Screw And Nut

Courtesy of BMW OF NORTH AMERICA, INC.