{"product_id":"thermostat-housing-assembly-105-c","title":"Thermostat Housing Assembly, 105° C","description":"The Mahle Behr thermostat is an essential part of your BMW's cooling system, regulating coolant flow to maintain optimal engine operating temperature. This OE-quality unit includes the housing and o-ring and is rated for 105° C. When your engine is cold, the thermostat remains closed, allowing the coolant to circulate within the engine until it reaches the proper temperature. Once the optimal temperature is reached, the thermostat opens, permitting coolant to flow to the radiator for cooling.\n\nThermostat failure can manifest in two primary ways: sticking open or closed. If the thermostat is stuck closed, it prevents coolant from reaching the radiator, leading to engine overheating and potential catastrophic damage. Conversely, if it sticks open, the engine may never reach its proper operating temperature, resulting in poor fuel economy and increased emissions. Symptoms of a failing thermostat include engine overheating, the engine not reaching its optimal running temperature, and the radiator fan not engaging.\n\nThis Mahle Behr thermostat is designed for specific BMW models, including the 540i, 740i, and 740iL. It is compatible with various model years from 1996 through 1998, with specific notes for production dates up to 9\/1998 on certain 1998 models. When replacing your thermostat, it is recommended to also replace the coolant and ensure the cooling system is properly bled to remove any trapped air.","brand":"Mahle","offers":[{"title":"Default Title","offer_id":52662883483960,"sku":"11531437526","price":70.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687501677.jpg?v=1784321747","url":"https:\/\/store.motormia.co\/products\/thermostat-housing-assembly-105-c","provider":"MOTORMIA","version":"1.0","type":"link"}