Technical Service Bulletin 121003 — 2003 BMW Z4
ENGINE AND ENGINE COOLING:ENGINE
Bulletin Details
| TSB ID | 121003 |
| Manufacturer | |
| Vehicle | 2003 BMW Z4 |
| Component | ENGINE AND ENGINE COOLING:ENGINE |
| Communication Date |
Bulletin Summary
DUE TO THE ABSENCE OF A READINESS CODE, THE SELF-DIAGNOSIS OF THE TANK VENTING VALVE (TEV) IS NOT BEING COMPLETED SUCCESSFULLY. THIS SERVICE ACTION REPROGRAMS THE DME FOR TANK VENTING VALVE OPERATION. *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.