BMW Thermostat (E46 E85 E86 M3 Z3M Z4M) - Genuine BMW 11531318274
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Does not come with o-ring, 80° C

Thermostats serve an important function in your BMW's cooling system. They are designed to control the flow of coolant based on temperature. Thermostats commonly fail with old age and depending on how they fail you can see different types of behavior from your vehicle.

If the thermostat fails in the open position the engine will never reach operating temperature. Engines that run cooler will run rich and not perform properly.

If the thermostat fails in the closed position your engine will overheat and no hot air will blow from your BMW's HVAC system. A closed thermostat prevents hot coolant from circulating through the cooling system and your engine runs hot.

If your BMW is exhibiting either of these types of behavior it is important to replace the thermostat immediately before severe engine damage can occur. You will lose coolant upon removal so its important to buy a liter of Genuine BMW coolant to complete the repair.

When replacing your BMW's thermostat you will need to replace coolant. For this application we recommend Genuine BMW coolant mixed 50/50 with distilled water.

Fits These Cars:

2001 BMW M3 Engine Coolant Thermostat
2002 BMW M3 Engine Coolant Thermostat
2003 BMW M3 Engine Coolant Thermostat
2004 BMW M3 Engine Coolant Thermostat
2005 BMW M3 Engine Coolant Thermostat
2006 BMW M3 Engine Coolant Thermostat
2001 BMW Z3 Engine Coolant Thermostat
Sub model: M Coupe
2001 BMW Z3 Engine Coolant Thermostat
Sub model: M Roadster
2002 BMW Z3 Engine Coolant Thermostat
Sub model: M Coupe
2002 BMW Z3 Engine Coolant Thermostat
Sub model: M Roadster
2006 BMW Z4 Engine Coolant Thermostat
Sub model: M Roadster
2006 BMW Z4 Engine Coolant Thermostat
Sub model: M Coupe
2007 BMW Z4 Engine Coolant Thermostat
Sub model: M Coupe
2007 BMW Z4 Engine Coolant Thermostat
Sub model: M Roadster
2008 BMW Z4 Engine Coolant Thermostat
Sub model: M Roadster
2008 BMW Z4 Engine Coolant Thermostat
Sub model: M Coupe
Product match fitment

BMW Thermostat (E46 E85 E86 M3 Z3M Z4M) - Genuine BMW 11531318274

Brand:
Genuine bmw logoGenuine BMW
SKU #:
BMW-11531318274
Part:
Engine Coolant Thermostat
OE Numbers:
11531318274
FCP ID:
221037
$64.99 MSRP: $78.99
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