Technical Service Bulletin 640702 — 2003 BMW Z4
EQUIPMENT:ELECTRICAL
Bulletin Details
| TSB ID | 640702 |
| Manufacturer | |
| Vehicle | 2003 BMW Z4 |
| Component | EQUIPMENT:ELECTRICAL |
| Communication Date |
Bulletin Summary
IHKA HEATING OUTPUT IS INADEQUATE. *TT
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.