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Old 02-19-2011, 03:52 PM
e36Jeff e36Jeff is offline
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Location: MD
Join Date: Feb 2011
Posts: 7
Mein Auto: '04 330i ZHP 6MT
The water pump is only 2-3 years and ~30-35k miles old, but it is the oldest part that could be causing the issue. I was actually planning a cooling system overhaul(radiator, expansion tank, pump) this spring/summer, I'm starting to get too paranoid that the expansion tank is going to break every time I go to take the cap off.

I'm guessing bad water pump bearing is not one of those things I can put off till warmer weather.

Last edited by e36Jeff; 02-19-2011 at 03:55 PM.
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