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      07-17-2011, 06:41 PM   #50
rusty_g80
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Drives: 2006 330xi
Join Date: May 2011
Location: Chicago

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Quote:
Originally Posted by maf330xi View Post
How do you know whether the therm or wp failed? Do you just replace the therm first and hope that it fixes the problem? If not, replace the wp?
Judging from all the symtoms I figure it was the water pump, but since the tstat is right there I replaced it too. I figured better spend $100 now and hopefully avoid dealing with it again for a while.

If you want to do it in steps from least $ to most $, you can, but it's quiet a bit of work. Took me 8hrs to replace both (would be same time for either, since both tstat and pump have to come out for you to replace either).