I just bought my 325is yesterday, and today I was driving and I heard a pop, and then steam was coming out form the drivers side of the radiator, and the Hose coming from the black plastic part of the radiator and snapped off and coolant was all over the right side of the engine compartment. My questions is if i need to replace the whole radioator or if I can just by the black plastic reservoir thing??
The radiator neck is a notorious weak point...unfortunately you have to replace the whole radiator if it breaks. Also check your thermostat housing and water pump- two more plastic stock parts that are a terrible design. Upgrade to metal aftermarket ones if you havent already.
LET me tell you!!! i caught mine before it blew up last week actually. you do infact have to change the radiator, its bitch, cuz we all know that plastic is the best thing for HOW FLUIDS!!!!!! i had to bit the bullet and change mine as well
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