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NHTSA 10149429: Misfire rough running
Misfire rough running on N54 engines (2007–2009); BMW gives diagnosis and repair guidance.
BMW service bulletin · NHTSA ID 10149429 · Feb 2013
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.
N54 - Diagnosis of Cold Start Rough Running with Misfire Faults. The customer may complain that during the cold start in the morning, the engine runs very roughly and the Service Engine Soon lamp is illuminated.
Details
| Bulletin number | NHTSA 10149429 |
|---|---|
| NHTSA ID | 10149429 |
| Document IDs filed | 130409 |
| Type | Service bulletin |
| Date | |
| Models | 135i, 335, 335i, 535i, Z4 |
| Model years | 2007–2009 |
| Chassis | E60, E61, E82, E88, E89, E90, E92, E93 |
| Engines | N54 |
| 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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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.