Service bulletin B170322
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10230723 |
| Published by NHTSA | 2023-01-30 |
| Manufacturer's number | B170322 |
| Manufacturer's date | 2022-12-01 |
| NHTSA component | ENGINE AND ENGINE COOLING:COOLING SYSTEM |
NHTSA's summary
The charge air cooler housing may sperate and lose charging pressure.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine, Cooling system
| BMW M3 | 2021, 2022 |
|---|---|
| BMW M4 | 2021, 2022 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.