2021 BMW 3 Series Steering Gear Power Supply Fault TSB
BMW has issued a Technical Service Bulletin (TSB) addressing a steering gear fault in certain 2021 3 Series vehicles. This issue can occur if the power supply to the steering gear is lost while the steering angle is greater than 15 degrees, leading to various fault memory entries and Check Control…
Also applies to
- BMW 330e
- 2021
- BMW M340i
- 2021
BMW has issued a Technical Service Bulletin (TSB) to address a specific steering system issue affecting certain 2021 BMW 3 Series vehicles. This TSB, identified by NHTSA ID 10186217, details a condition where a loss of power supply to the steering gear can trigger a fault, particularly when the steering wheel is turned beyond a certain angle. This is a significant point for any 2021 BMW 330i manufacturer_communication regarding steering issues.
Symptoms of the Steering Gear Fault
Owners may notice various warning indicators and messages related to the steering system. The TSB describes that if the power supply to the steering gear is lost, a fault can occur in the steering system itself. This can lead to the illumination of various Check Control Messages (CCM) and the storage of fault memory entries throughout the vehicle's network.
Trigger Conditions
The specific condition that triggers this fault is when the power supply to the steering gear is interrupted while the steering angle is greater than 15 degrees. This precise scenario can initiate the cascade of warnings and fault codes, as outlined in the 2021 BMW 330i manufacturer_communication.
Repair Procedure Summary
According to the TSB, the recommended remedy for this steering system fault is to replace the steering gear. This procedure aims to resolve the underlying issue causing the power supply interruption and subsequent fault messages.
What Owners Should Do
If you are experiencing steering system warnings, fault memory entries, or Check Control Messages in your 2021 BMW 330i, it is advisable to contact your authorized BMW dealership. Inform them about the symptoms you are observing. The dealership technicians can diagnose the issue and determine if your vehicle is affected by the condition described in TSB NHTSA ID 10186217. Repairs performed under a Technical Service Bulletin may be covered under warranty, depending on your vehicle's specific warranty coverage and mileage.
Source: NHTSA ID 10186217
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.
Steering, the system this article covers, accounts for 32 of 818 complaints (4%).
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)
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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