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SIB 11 07 09: Thermostat leak
Thermostat leak on BMW E36/E46 models (1995–2005); BMW gives an inspection and repair procedure.
BMW service bulletin · NHTSA ID 10030850 · Aug 2009 · also written SI B11 07 09, B110709
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.
Thermostat housing inspection. The retaining springs of the thermostat housing quick release couplings for the coolant hoses may not be locked correctly. This situation may result in a coolant leak. Models affected are M3 sedan (E90), coupe (92), and convertible (393). No model years listed.
Details
| Bulletin number | SIB 11 07 09 Also written: SI B11 07 09, B110709, 11 07 09, SIB-11-07-09, SI B110709 |
|---|---|
| NHTSA ID | 10030850 |
| Document IDs filed | SI-B11-07-09 |
| Type | Service bulletin |
| Date | |
| Models | M3 |
| Model years | 1995–2005 |
| Chassis | E36, E46 |
| Engines | S50, S52, S54 |
| Component (NHTSA) | Engine And Engine Cooling Engine And Engine Cooling › Cooling System › Hoses/Lines/Piping/Fittings |
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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- SIB 01 04 14 External Engine Oil Leaks and Repairs External Engine Oil Leaks and Repairs on BMW E46/E60/E61/E70 and other models (2006–2015); BMW explains the cause and the approved repair. Service bulletin · Jul 2014
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.