Technical Service Bulletin B120623 — 2023 BMW X7
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | B120623 |
| Manufacturer | |
| Vehicle | 2023 BMW X7 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
The engine malfunction warning is illuminated and one or more of the following faults are stored in theDME: 034D63 - Exhaust switchable cam follower, system: continuous deactivation, maximum number of switchingerrors exceeded 035601 - Exhaust switchable cam follower 1, electrical: cable break 035604 - Exhaust switchable cam follower 2, electrical: cable break 034BBF - Exhaust switchable cam follower, system: switching errors
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.