TSB B640422 — BMW Service bulletin
B640422 is a service bulletin on file with NHTSA for the BMW X3, 2017–2022 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years B640422 names
Every document filed under B640422
| Document ID | Filed | Type |
|---|---|---|
| B640422 | February 16, 2024 | Service bulletin |
What B640422 covers
Electrical, Visibility & wipers — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB B640422?
B640422 is a service bulletin filed with NHTSA by BMW, covering the BMW X3 across the 2017–2022 model years. NHTSA's summary reads: An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel. The groaning noise always occurs when either a ventilation flap, air stratification flap or the recirculated airflap moves to a different…
Which vehicles does B640422 cover?
NHTSA's file names BMW X3 (2017–2022). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB B640422 a recall, and is the repair free?
No. B640422 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of B640422?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under B640422, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under B640422. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.