how long should a radiator last on a 335i

Asked by Apr 24, 2017 at 05:57 PM about the 2013 BMW 3 Series 335i Convertible RWD

Question type: Maintenance & Repair

water pump was replaced at 42,000 and now the coolant light keeps coming on.

6 Answers

28,715

several things to check first..is a rad.hose collasping when hot?? have you flushed the cooling system..did you get all the air out the system? fans/fans ok??..let us know what else you have done..

1 of 1 people found this helpful.
28,715

several hundered thousand miles if you take/took care of it..

My car has less than 45,000 miles and has been maintained completely by the dealer. They are saying now that the radiator is leaking at both sides and needs replaced. It seems much too soon. They replaced the water pump just a few months ago but they have never suggested flushing the cooling system until now.

28,715

take it to a radiator shop...

270,305

The BMW's use aluminum radiators with plastic ends that could leak, so the radiator shop won't work. Just replace and move on. Failure at this mileage isn't normal, but if the system got hot enough to overheat, the radiator might have been compromised. Usually it's the expansion tank that leaks. You can pick up a BEHR unit for under $200 @ fcpeuro.com

21,555

The bowls can be replaced and/or gaskets if failed and new or used ones installed. There is a local guy here that does this, he has replaced some for me, among other things including my AC servicing. The bowls have bent over tabs that hold the bowls on tight, with a tool he has he bends these out one at a time, then the bowl comes off and a new one goes on in reverse a good radiator man can do this. Last one he did ran me $35.00 the part included for one side bowl. Only took 10 minutes. I took him my radiator a few days after I stopped by to see if he could get the bowl and he did. I removed it myself to save money.

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