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SIB 51 34 11: Engine corrosion
Engine corrosion on BMW E70/E71 models (2010–2012); BMW explains the cause and the approved repair.
BMW service bulletin · NHTSA ID 10042469 · Nov 2011 · also written SI B51 34 11, B513411
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.
Over the lifetime of the vehicle, corrosion formation could occur due to water entering the engine compartment. Engine compartment center bulkhead partition should be sealed.
Details
| Bulletin number | SIB 51 34 11 Also written: SI B51 34 11, B513411, 51 34 11, SIB-51-34-11, SI B513411 |
|---|---|
| NHTSA ID | 10042469 |
| Document IDs filed | SIB-51-34-11 |
| Type | Service bulletin |
| Date | |
| Models | X5, X6 |
| Model years | 2010–2012 |
| Chassis | E70, E71 |
| Engines | M57, N52, N54, N55, N57, N62, N63 |
| Component (NHTSA) | Engine And Engine Cooling › Engine |
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.