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SIB 12 06 23: Exhaust fault codes
Exhaust fault codes on B58/N63 engines (2021–2024); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10242884 · Sep 2023 · also written SI B12 06 23, B120623
What it covers
A service bulletin tells BMW technicians how to diagnose or fix a known issue. It is not a recall: a repair under a bulletin is normally paid by the owner unless the car is still under warranty or a warranty extension applies.
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 s
Details
| Bulletin number | SIB 12 06 23 Also written: SI B12 06 23, B120623, 12 06 23, SIB-12-06-23, SI B120623 |
|---|---|
| NHTSA ID | 10242884 |
| Document IDs filed | B120623 |
| Type | Service bulletin |
| Date | |
| Models | X5, X6, X7 |
| Model years | 2021–2024 |
| Chassis | G05, G06, G07 |
| Engines | B58, N63 |
| Component (NHTSA) | Engine And Engine Cooling |
Model, year and engine coverage comes from NHTSA's records. Not every car in this range is affected; the official document lists the exact production dates and conditions.
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Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.
Source: NHTSA Manufacturer Communications (public data). BimmerBench is not affiliated with BMW or NHTSA. The title and description above are our own plain-English summary; the full bulletin is BMW's document, linked above.