BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
Here are your choices: you can wait for the plastic factory thermostat housing cover to break and cause major overheating. (Even with a new stock cover, it won’t take long.) Or you can install a thoughtfully engineered all-aluminum thermostat housing cover from Active Autowerke and never experience this type of failure again. Currently there is no factory upgraded part to this problem. This is an aluminum extruded part that has all of the openings machine properly to fit like factory; from the mounting bolt holes, the seating of the thermostat to the sealing opening for the ORANGE gasket. Forged to exact factory tolerances, everything fits and this unit is a true easy bolt-on – especially suited for racing or load conditions like heavy traffic, where engine temp can rise rapidly. The housing is guaranteed never to break from overheating or over-tightening, and its CNC machined surface ensures a precise seat.
Unit comes complete with a new ORANGE sealing gasket; a new thermostat is recommended but not included. For hotter climates, a 71 degree thermostat is recommended over the 82 degree unit.
Anything and everything BMW is the mantra at Active Autowerke. Since 1981 they have been serving the BMW community with custom turbocharger kits to a myriad of other innovative and inspiring performance parts.
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The thermostat in your vehicle regulates coolant flow based on temperature. When you first start the engine, the thermostat remains closed to speed up the warm-up process. After a few minutes, it opens to allow warm coolant to circulate. If your vehicle is overheating but not producing warm air from the heater, a faulty thermostat is likely the culprit. A thermostat stuck closed prevents coolant from flowing, causing the engine to overheat. Conversely, if your engine isn’t reaching its proper operating temperature while driving, the thermostat may be stuck open, leading to inefficient performance. Replacing the thermostat will restore proper coolant flow and help regulate engine temperature. This high-quality thermostat from Febi is designed to fit like the original, ensuring your engine warms up correctly and cools efficiently. Since some coolant loss is unavoidable during a thermostat replacement, make sure to order the correct replacement coolant for your vehicle. Additionally, consider purchasing a new thermostat housing, as stock plastic units can become damaged or warped during removal. Browse our website to find the right parts delivered straight to your door.
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