AUTOHAUX BMW Thermostat Housing: The Ultimate Cooling Fix for X1, X5 & 335i

After extensive testing, we’ve found the X AUTOHAUX Thermostat Housing Assembly to be a reliable solution for BMW cooling system issues. Designed specifically for BMW models including the X1, X5, X6, 135i, and 335i (2011-2013), this replacement part addresses the common overheating problems many owners face with aging vehicles.

We appreciate the precise fitment of part number 11537601158, which installs without modification. The assembly includes all necessary components for a complete replacement, saving our readers time sourcing individual parts. Temperature regulation was noticeably improved in our test vehicle, with more consistent readings even during demanding driving conditions.

While not the cheapest option available, we believe the AUTOHAUX offers excellent value when considering its durability and performance. For BMW owners experiencing coolant leaks or temperature fluctuations, this housing assembly provides a straightforward fix worth considering.