2021 BMW 330i Brake System Fault ID 42
A technical service bulletin (TSB) addresses a brake system fault in certain 2021 BMW models, including the 330i. Owners may see a yellow CCM light with ID code 42 or 00042 on vehicle startup, indicating a brake system issue. While driving is possible, caution is advised.
Marcus Weber2021 BMW 330i
Also applies to
- BMW 330e
- 2021
- BMW 430i
- 2021
- BMW M340i
- 2021
- BMW M440i
- 2021
- BMW Z4
- 2021
Symptoms
Owners of certain 2021 BMW models, including the 330i, may notice a yellow "CCM" light illuminating on the instrument cluster when starting the vehicle. This warning is accompanied by the identifier "ID code 42" or "00042" and explicitly states "Brake system."
Fault Codes / DTCs
This issue is identified by the following codes:
- ID code 42: Brake system
- ID code 00042: Brake system
Diagnosis / Trigger Conditions
The yellow CCM light and associated brake system fault message typically appear immediately upon starting the vehicle. While the vehicle may still be driven, it indicates a detected issue within the braking system that requires attention.
Important Warnings
If you experience this warning, it is crucial to follow the manufacturer's recommendations:
- "Avoid abrupt braking as far as possible."
- "Drive at a moderate speed."
Owner Action
If your 2021 BMW 330i brake system fault warning appears, it is recommended to have the vehicle inspected by your nearest authorized BMW Service Center. Although it may be possible to continue driving, the warning indicates a potential issue with the brake system that should not be ignored. The manufacturer communication, NHTSA ID 10204626, advises professional inspection.
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