63 12 860 Replacing control unit for left xenon headlight.

1. Remove complete headlight assembly, refer to 63 12 001 REMOVING AND INSTALLING/REPLACING COMPLETE LEFT-HAND HEADLIGHT ASSEMBLY 

Release clip and take off bulb cover.

Compress left and right clips and pry out connector.

Fig 1: Releasing Clip And Take Off Bulb Cover

Unfasten screws and remove cover with control unit.

Fig 2: Removing Cover With Control Unit