Service bulletins for the 2020 BMW X4
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.
250 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Transfer case are shown. Show all
| 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.