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Genuine 11537509227 Engine Coolant Thermostat
| Brand | Genuine 11537509227 |
|---|---|
| Fits | BMW · 72 vehicles |
OE direct replacement. Engine coolant thermostat for straightforward fit and function.
Restores proper coolant flow control for reliable engine temperature management.
Engine Coolant Thermostat for BMW Cooling Systems
This Genuine engine coolant thermostat, part number 11537509227, is a direct-fit cooling system component for a wide range of BMW models. It is used to regulate coolant flow and help the engine reach and maintain proper operating temperature.
Key Features
- Genuine OEM replacement thermostat for BMW cooling system service
- Part number 11537509227 for accurate ordering and fitment verification
- Fits multiple BMW 3 Series, 5 Series, X3, X5, Z3, and Z4 applications
- Supports stable engine temperature control in everyday driving
- Compatible with select M54 engine applications noted in fitment data
Detailed Description
When a thermostat sticks open or closed, the engine may run too cool, overheat, or take too long to warm up. This Genuine thermostat is specified for BMW models including 325Ci, 330Ci, 325i, 330i, 525i, 530i, X3, X5, Z3, Z4, 323i, 328i, 528i, and related applications listed in the fitment data. Use part number 11537509227 to confirm the correct engine coolant thermostat for your vehicle before installation.
What It Helps Address
- Engine running hotter than normal
- Slow warm-up after cold starts
- Temperature gauge fluctuation
- Coolant flow control issues caused by a failing thermostat
- Check engine concerns related to cooling system performance
Installation Notes and Tips
Drain coolant before removing the thermostat housing area, then inspect the housing, seals, and nearby hoses for wear or contamination. Verify the BMW model, year, and engine application against the fitment list before installation. After service, refill and bleed the cooling system according to BMW procedures to remove trapped air.
Quality Assurance
Genuine OEM parts are built to match original vehicle specifications for fit and function. This thermostat is identified by part number 11537509227 and is listed for the BMW applications shown below.
- Fits 2001-2006 BMW 325Ci
- Fits 2001-2006 BMW 330Ci
- Fits 2004-2006 BMW X3
- Fits 2001-2006 BMW X5
- Fits 2001-2005 BMW 325i
- Fits 2001-2005 BMW 325xi
- Fits 2001-2005 BMW 330i
- Fits 2001-2005 BMW 330xi
- Fits 2001-2005 BMW 525i
- Fits 2001-2005 BMW 530i
- Fits 2005 BMW X3, M54
- Fits 2004-2005 BMW Z4
- Fits 2001-2004 BMW 320i
- Fits 2003 BMW Z4, M54
- Fits 2001-2002 BMW Z3, M54
- Fits 2000 BMW 323Ci
- Fits 1999-2000 BMW 323i
- Fits 2000 BMW 328Ci
- Fits 1999-2000 BMW 328i
- Fits 1999-2000 BMW 528i
- Fits 1999-2000 BMW Z3
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | BMW | 325Ci | — | — | — | N/A | — |
| 2006 | BMW | 330Ci | — | — | — | N/A | — |
| 2006 | BMW | X3 | — | — | — | N/A | — |
| 2006 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2005 | BMW | 325Ci | — | — | — | N/A | — |
| 2005 | BMW | 325i | — | — | — | N/A | — |
| 2005 | BMW | 325xi | — | — | — | N/A | — |
| 2005 | BMW | 330Ci | — | — | — | N/A | — |
| 2005 | BMW | 330i | — | — | — | N/A | — |
| 2005 | BMW | 330xi | — | — | — | N/A | — |
| 2005 | BMW | 525i | — | — | — | N/A | — |
| 2005 | BMW | 530i | — | — | — | N/A | — |
| 2005 | BMW | X3 | 3.0i | — | — | N/A | — |
| 2005 | BMW | X3 | 2.5i | — | — | N/A | M54 |
| 2005 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2005 | BMW | Z4 | — | — | — | N/A | — |
| 2004 | BMW | 320i | — | — | — | N/A | — |
| 2004 | BMW | 325Ci | — | — | — | N/A | — |
| 2004 | BMW | 325i | — | — | — | N/A | — |
| 2004 | BMW | 325xi | — | — | — | N/A | — |
| 2004 | BMW | 330Ci | — | — | — | N/A | — |
| 2004 | BMW | 330i | — | — | — | N/A | — |
| 2004 | BMW | 330xi | — | — | — | N/A | — |
| 2004 | BMW | 525i | — | — | — | N/A | — |
| 2004 | BMW | 530i | — | — | — | N/A | — |
| 2004 | BMW | X3 | — | — | — | N/A | — |
| 2004 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2004 | BMW | Z4 | — | — | — | N/A | — |
| 2003 | BMW | 320i | — | — | — | N/A | — |
| 2003 | BMW | 325Ci | — | — | — | N/A | — |
| 2003 | BMW | 325i | — | — | — | N/A | — |
| 2003 | BMW | 325xi | — | — | — | N/A | — |
| 2003 | BMW | 330Ci | — | — | — | N/A | — |
| 2003 | BMW | 330i | — | — | — | N/A | — |
| 2003 | BMW | 330xi | — | — | — | N/A | — |
| 2003 | BMW | 525i | — | — | — | N/A | — |
| 2003 | BMW | 530i | — | — | — | N/A | — |
| 2003 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2003 | BMW | Z4 | — | — | — | N/A | M54 |
| 2002 | BMW | 320i | — | — | — | N/A | — |
| 2002 | BMW | 325Ci | — | — | — | N/A | — |
| 2002 | BMW | 325i | — | — | — | N/A | — |
| 2002 | BMW | 325xi | — | — | — | N/A | — |
| 2002 | BMW | 330Ci | — | — | — | N/A | — |
| 2002 | BMW | 330i | — | — | — | N/A | — |
| 2002 | BMW | 330xi | — | — | — | N/A | — |
| 2002 | BMW | 525i | — | — | — | N/A | — |
| 2002 | BMW | 530i | — | — | — | N/A | — |
| 2002 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2002 | BMW | Z3 | — | — | — | N/A | M54 |
| 2001 | BMW | 320i | — | — | — | N/A | — |
| 2001 | BMW | 325Ci | — | — | — | N/A | — |
| 2001 | BMW | 325i | — | — | — | N/A | — |
| 2001 | BMW | 325xi | — | — | — | N/A | — |
| 2001 | BMW | 330Ci | — | — | — | N/A | — |
| 2001 | BMW | 330i | — | — | — | N/A | — |
| 2001 | BMW | 330xi | — | — | — | N/A | — |
| 2001 | BMW | 525i | — | — | — | N/A | — |
| 2001 | BMW | 530i | — | — | — | N/A | — |
| 2001 | BMW | X5 | 3.0i | — | — | N/A | — |
| 2001 | BMW | Z3 | — | — | — | N/A | M54 |
| 2000 | BMW | 323Ci | — | — | — | N/A | — |
| 2000 | BMW | 323i | — | — | — | N/A | — |
| 2000 | BMW | 328Ci | — | — | — | N/A | — |
| 2000 | BMW | 328i | — | — | — | N/A | — |
| 2000 | BMW | 528i | — | — | — | N/A | — |
| 2000 | BMW | Z3 | — | 2.5L | L6 | N/A | — |
| 2000 | BMW | Z3 | — | 2.8L | L6 | N/A | — |
| 1999 | BMW | 323i | — | — | — | N/A | — |
| 1999 | BMW | 328i | — | — | — | N/A | — |
| 1999 | BMW | 528i | — | — | — | N/A | — |
| 1999 | BMW | Z3 | — | — | — | N/A | — |
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