Coolant Expansion Tank, Behr - E36, E39, Z3, MZ3, M50, M52, S52

E36 coolant expansion tanks are known for leaks and failures. The plastic gets brittle as it ages and is subjected to heating cycles and coolant can leak from the seams, cap, or level sensor. A replacement at the first sign of leakage will prevent a major blowout later on. For the ultimate solution to expansion tank failures we offer our aluminum version.

This is an OEM expansion tank made by Behr Hella - the original supplier to BMW for this expansion tank as well as many other cooling components on your BMW. It comes with a two year warranty.

Cap and level sensor are sold separately.