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      11-02-2012, 01:10 PM   #1
Down with the N54.
JaSSon's Avatar

Drives: I has a E92!
Join Date: Mar 2011
Location: Columbus, OH

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Leaking water pump on 335i?

Has anyone ever seen the water pump leak on their 335?

I've got an '07 335i e92 6MT with 75k miles on it. Last weekend I: flushed coolant, changed oil, replaced leaking oil filter housing gaskets, and replaced my damaged OE FMIC with a VRSF part. At no point in time did I tinker in the area of the water pump. Thursday on my commute to work the low coolant light came on.

I've got it up on jack stands now, and the leak is at the pump, or one of the immediately attached hoses. I've removed the 3 visible worm gear clamps, repositioned, and tightened the F out of them, and it's been reduced to a slow trickle. Has anyone seen one of the hoses fail at the the water pump, or seen the water pump itself leak? My water pump works fine, and I can hear water flow thru system.