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SIB 12 23 07: Thermostat check engine light
Thermostat check engine light on BMW E53/E70 models (2006–2007); BMW released a software update.
BMW service bulletin · NHTSA ID 10032813 · Nov 2007 · also written SI B12 23 07, B122307
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.
Fc 2EF4 characteristic map thermostat. Complaints that the service engine soon lamp is illuminated. Fault code 2EF4 characteristic map thermostat is stored in DME fault memory. DME software calibration related to high heating requirements during subzero driving conditions.
Details
| Bulletin number | SIB 12 23 07 Also written: SI B12 23 07, B122307, 12 23 07, SIB-12-23-07, SI B122307 |
|---|---|
| NHTSA ID | 10032813 |
| Document IDs filed | SIB-12-23-07 |
| Type | Service bulletin |
| Date | |
| Models | X5, X5 SAV |
| Model years | 2006–2007 |
| Chassis | E53, E70 |
| Engines | M54, M57, N52, N62 |
| Component (NHTSA) | Electrical System › Software Engine And Engine Cooling › Engine Equipment › Electrical |
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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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.