Technical Service Bulletin B170100 — 1999 BMW 540I
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | B170100 |
| Manufacturer | |
| Vehicle | 1999 BMW 540I |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
The lower radiator coolant return hose may come in contact with the secondary air system check valve flange gasket when the engine coolant is at operating temperature due to coolant system pressure and expansion of the hose.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 1999 BMW 540I
B122817
ELECTRICAL SYSTEM:SOFTWARE