2021 BMW MIL Illuminated CDC152 Fault
A manufacturer communication addresses the 2021 BMW MIL illuminated CDC152 fault, where the Malfunction Indicator Lamp (MIL) illuminates in the instrument cluster without any actual operating failures. This TSB helps owners understand this specific diagnostic issue.
Also applies to
- BMW 228i
- 2021
- BMW 330e
- 2021
- BMW 430i
- 2021
- BMW 530e
- 2021
- BMW 530i
- 2021
- BMW 540i
- 2021
- BMW 740i
- 2021
- BMW 840i
- 2021
- BMW M235i
- 2021
- BMW M340i
- 2021
- BMW M440i
- 2021
- BMW M5
- 2021
- BMW M550i
- 2021
- BMW M760i
- 2021
- BMW M8
- 2021
- BMW M850i
- 2021
- BMW X3
- 2021
- BMW X4
- 2021
- BMW X5
- 2021
- BMW X6
- 2021
- BMW X7
- 2021
- BMW Z4
- 2021
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Symptoms
Owners of affected 2021 BMW vehicles may notice the Malfunction Indicator Lamp (MIL) illuminated in the instrument cluster. This condition is specifically associated with fault memory CDC152. Despite the warning light, the vehicle experiences no actual operating failures or performance issues. This particular 2021 BMW 330i manufacturer_communication highlights a diagnostic scenario where the warning light appears without a corresponding mechanical or electrical problem.
Fault Codes / DTCs
The primary diagnostic trouble code (DTC) associated with this issue is:
- CDC152: Malfunction Indicator Lamp (MIL) illuminated
This code is stored in the vehicle's fault memory when the MIL illuminates under the conditions described in the manufacturer communication.
Diagnosis / Trigger Conditions
The condition described in this 2021 BMW 330i manufacturer_communication involves the Malfunction Indicator Lamp (MIL) illuminating, accompanied by fault memory CDC152. Crucially, the vehicle does not exhibit any actual operating failures. This suggests that the MIL illumination might be a false positive or a diagnostic anomaly rather than an indication of a genuine component malfunction. Technicians should investigate the specific conditions under which the fault code is triggered, noting the absence of other performance issues.
What Owners Should Know
If you own a 2021 BMW and observe the Malfunction Indicator Lamp (MIL) illuminated with fault memory CDC152, it's important to understand that the manufacturer communication indicates there are no actual operating failures. This means your vehicle's performance and safety systems are likely functioning correctly despite the warning light. While the MIL should always be addressed, this specific scenario suggests a diagnostic rather than a mechanical issue. Consult your authorized BMW service center for proper diagnosis and resolution related to this manufacturer communication.
Source: NHTSA ID 10186224
What BMW 330i owners report
Counted from the records in our database across 16 model years.
- 818
- Owner complaints
- 39
- Recalls
- 863
- Service bulletins
- 30
- Crashes reported
- 38
- Fires reported
- 36
- Injuries reported
The 2021 model year
29 complaints, the 10th most of 16 model years on file. Owners reported 1 crash, 3 fires and 1 injury for this year, which also has 7 recalls on file.
Electrical System and Equipment, the system this article covers, accounts for 140 of 818 complaints (17%), including 13 for 2021.
Complaints by model year
| 2001 | 116 | |
|---|---|---|
| 2002 | 45 | |
| 2003 | 77 | |
| 2004 | 113 | |
| 2006 | 219 | |
| 2017 | 42 | |
| 2018 | 32 | |
| 2019 | 41 | |
| 2020 | 53 | |
| 2021 | 29 |
Most-reported systems
- Air Bags — 246
- Exterior Lighting — 153
- Electrical System — 132
- Engine — 89
- Power Train — 44
Latest recalls for the 2021 model year
- 26V056000 — Electrical System (Jan 2026)
- 25V636000 — Electrical System (Sep 2025) — Park outside
- 23V584000 — Electrical System (Aug 2023)
Recent owner reports about electrical system and equipment
The contact owned a 2021 BMW 330i. The contact received notification of NHTSA Campaign Number: 26V056000 (Electrical System); however, the part to do the recall repair was unavailable.
Read owner complaints →I phoned BMW today for an update on this recall. After 6 months, Manufacturer still does not have a fix or repair for your recall 25V636000 and no solution date. This is completely unacceptable.
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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