2022 BMW X3 KAFAS Camera Hood Deformation TSB

Symptoms

Owners of affected vehicles may experience various "Check Control messages (CCM)" indicating a restricted function or an unavailability of the driver assistance systems or driver assistance functions. This directly impacts the performance of features like the 5AU Driving Assistant Professional.

Fault Codes / DTCs

During diagnosis, the following fault memory entries may be found individually or in combination:

• 800AC4 - Camera calibration failed
• 800AC8 - Permanent calibration error
• 800A24 - Temporary software fault
• 800ABE - KAFAS camera: Field of view permanently faulty

Diagnosis / Trigger Conditions

This issue primarily affects 2022 BMW X3 (F97, G01) LCI vehicles produced from August 1st, 2021, specifically those equipped with the 5AU Driving Assistant Professional option. Technicians should perform a diagnosis using ISTA. If the listed fault codes are present, the KAFAS camera hood must be inspected for deformation.

Visual inspection involves checking if the KAFAS hood is in contact with its holder/mount all the way around. The service bulletin provides example photos highlighting distorted areas in red and areas without defects in green to aid in identification.

Repair Procedure Summary

The repair procedure for the 2022 BMW X3 KAFAS camera hood deformation, as detailed in BMW Service Information Bulletin SIB 66 13 23, involves replacing the KAFAS camera hood and modifying the existing windshield bracket. The process is as follows:

1. Initial Diagnosis: Confirm the presence of the specified fault codes using ISTA. If codes are present, visually inspect the KAFAS camera hood for deformation. If no deformation is found, further ISTA diagnosis is required.
2. Component Replacement: If distortion is identified during the visual inspection, the KAFAS camera hood must be replaced with the specified new part.
3. Disassembly: Remove the interior mirror trim, the interior mirror itself, the KAFAS camera, and the KAFAS camera hood to gain access to the retaining lug that requires modification.
4. Bracket Modification: The mounting point for the KAFAS camera hood needs adjustment. The KAFAS window must be masked, and dust drawn off while grinding. Using a grinding tool (such as a Dremel), shorten the entire surface of the retaining lug by 1.3 mm. After grinding, the area must be deburred and thoroughly cleaned, and any adhesive tape removed.
5. Reassembly: Mount the new KAFAS camera hood, ensuring it makes full contact with the holder all the way around, especially in the modified retaining lug area. Finally, reassemble the vehicle and reassess the KAFAS system's operation to confirm the repair is successful.

Required Tools or Parts

To perform this repair, the following specific part and tools are required:

• Part Number: 51 31 5A93179 (Trim windshield front)
• Special Tool: A grinding tool (e.g., Dremel) is necessary for precisely modifying the retaining lug.

Additionally, other materials and small parts not explicitly listed, such as fluids, lubricants, one-time use screws, nuts, and seals, may be required. These items should be selected according to ISTA repair instructions or the Electronic Parts Catalogue.

Owner Action

If your 2022 BMW X3 is displaying "Check Control messages (CCM)" related to driver assistance systems or if you suspect issues with the 5AU Driving Assistant Professional, especially if accompanied by fault codes 800AC4, 800AC8, 800A24, or 800ABE, it indicates a potential issue with the KAFAS camera hood deformation. You should contact your authorized BMW dealer to schedule an inspection and repair. This repair, identified by Service Information Bulletin SIB 66 13 23, is covered one time under the terms of the BMW New Vehicle Limited Warranty for Passenger Cars and Light Trucks. Ensure your vehicle has the 5AU Driving Assistant Professional option, as this bulletin specifically applies to those models.

Important Warnings

• "This only affects vehicles with the following optional equipment: 5AU Driving Assistant Professional." Owners without this specific option are not impacted by this particular service bulletin.
• "Note: Before performing this repair procedure and submitting a claim, review the Repair History (Claims) section at the bottom of the Warranty Vehicle Inquiry (WVI) to confirm that a prior claim for this one-time repair procedure has not already been submitted and accepted." This highlights that the repair is a one-time warranty claim.

NHTSA ID: 10242871