How to Remove Tank Thermostat on BMW E46 – Occasionally, the tank thermostat of the BMW E46 can freeze up and not work properly. The tank thermostat is located inside the thermostat housing that is attached to the engine block.
Removing the top plastic shroud that sits over the cooling fan will make it easier to get to the thermostat. The tank thermostat can be accessed by using a few common household tools and can be done in about an hour.
Tools Used: Tools, Open-end wrench, Small standard screwdriver, Torx wrench, Socket wrench set
Remove Tank Thermostat