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Home >> BMW >> 2011 >> 335i 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Lights - Repair - E90) >> Headlights >> 63 12 860 Replacing control unit for left xenon headlight

63 12 860 Replacing control unit for left xenon headlight

WARNING: This page is about a different variant/trim than selected.
WARNING: Version with xenon headlights: Danger to life due to high voltage! Therefore, before removing, disconnect all components from the power supply (lighting system and ignition off).
Work on the entire xenon lighting system (control unit, ignition unit with lamp) may only be carried out by specialist personnel.
IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD PROTECTION) .

Necessary preliminary tasks:

Release screws (1). Tightening torque 63 12 4AZ .

Lift control unit (2) off headlight (3).

Fig 1: Lifting Control Unit Off Headlight
G04727700Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1, 2).

Remove control unit (3).

Installation: 

Make sure sealing sleeve (4) is correctly seated on control unit (3).

Fig 2: Identifying Control Unit Components
G04727701Courtesy of BMW OF NORTH AMERICA, INC.