Mercedes Engine Coolant Thermostat Housing - Wahler 2782000815

Product Information

The engine coolant thermostat housing is the component that houses the thermostat, which regulates the flow of coolant to and from the engine. The thermostat housing connects the engine to the radiator via hoses and helps control the engine’s operating temperature by opening and closing based on coolant temperature. In some vehicles, the thermostat housing also has additional connections for sensors or other cooling system components.

• Coolant Leaks: A common sign of a failing thermostat housing is a coolant leak. This can happen if the housing becomes cracked, or corroded, or if the gasket that seals the housing fails.
• Engine Overheating: If the thermostat housing is damaged or the thermostat inside it is stuck in the closed position, it can prevent coolant from circulating properly through the engine.
• Erratic Temperature Readings: A malfunctioning thermostat or housing can cause the engine’s temperature to fluctuate. You may notice that the temperature gauge on the dashboard moves unpredictably, indicating that the coolant flow is not being properly regulated.

About Wahler

Wahler is the leading OEM manufacturer of thermal solutions for BMW, Mercedes-Benz, Audi, Porsche ,VW as well as Volvo, Saab, Jaguar, Land-Range Rover as well as various US domestic and Asian applications.

Since 1902, Wahler has built its reputation with technically complex thermostats and thermos-solutions for automotive and industrial applications. For a short time, Borg Warner managed Wahler products. In 2020, Borg Warner sold all of the thermostat production facilities back to Wahler. Today, Wahler is back as an independent brand supplying worldwide OEMs with thermostats, electronic thermostats, thermoswitches and electric valves.

With Wahler, the original and replacement parts are identical. This means that Wahler-made parts are the same quality as the original issue used by automakers. The Wahler brand stands for premium quality. Wahler aftermarket parts come with the same assurances with respect to service life and operational reliability.