Service bulletins for the 2021 BMW X3
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
195 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Transmission and driveline are shown. Show all
| B260422 | 2023-03-20. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. There is a howling or whistling noise from under the vehicle at 30 -37 mph (50 -60 km/h) when driving after a cold start, when the outside temperature is 32 F (0 C) or lower. The noise goes away as the vehicle/driveline reaches operating temperature. |
|---|---|
| B121021 | 2023-01-03. Service bulletin. POWER TRAIN. Due to an unfavorable operating point, primarily in the low-end torque range, an incorrect detection of amixture that is too rich could happen. |
| B270122 | 2022-02-22. Service bulletin. ENGINE; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). DELIVERY STOP: REPLACE CONTROL UNIT TRANSFER CASE. Due to a production failure, the control unit was assembled with a capcitator instead of a resistor. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.