This bulletin applies to 2011 BMW 328i models equipped with option 522 (Xenon lights). The power windows and/or power mirrors may be inoperative. The LED on the headlight switch may be flashing, and there may be a check control message for Windows/Mirrors/Headlights. There may also be a complaint of water in one or both headlights. One of the following codes may be stored:

  • 9CBD (communication with stepper motor box left defective)
  • 9CBE (communication with stepper motor box right defective)
  • 9CC1 (communication with mirror driver side defective)
  • 9CC2 (communication with mirror passenger side defective / right stepper motor controller SMC signaling fault)
  • 9CCF (communication with LIN control defective

The left and/or right headlight housing cover may not be properly fitted, allowing water into the stepper motor controller connector.

Perform a vehicle test using ISTA to verify that the faults listed above are stored in the Footwell Module (FRM). NOTE: When the ISTA system message displays “Battery voltage only XX.XX V” connect the charger.Inspect the connector at each headlight (X13420-Left and X13421-Right) assembly for corrosion and replace as necessary. Socket housings are available as P/N 61 13 6 931 864.Make sure that the headlight access covers are installed correctly.Clear the faults and test the headlights for proper function.

Inspect the headlight connectors for corrosion.

Inspect the headlight connectors for corrosion.

Make sure that the headlight access covers (1) are installed correctly.

Make sure that the headlight access covers (1) are installed correctly.

 

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