Quote:
Originally Posted by redlineclipse
Parts are on the way. I'll update after the job is done
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Most of the bases have been covered in this thread, and from the sound of it the pump should fix your problem but there's also a possibility that the previous owner didn't do the bleed procedure properly - as a previous poster said the e90 has a self bleeding system which is obviously different than most cars and previous BMW'S.
It doesn't sound like this part is the issue but be aware that there is a coolant line that runs on top of the radiator that is often brittle and prone to cracking and leaking on the 335, especially older models that have gone through their fair share of heat cycles.