Technical Service Bulletin B121320 — 2020 BMW M850I
ENGINE
Bulletin Details
| TSB ID | B121320 |
| Manufacturer | |
| Vehicle | 2020 BMW M850I |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
REPLACE ALL THE IGNITION COILS: The ignition coils may not have been produced to specifications which could lead to irregular running of the engine.
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.