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      09-23-2017, 02:01 PM   #18
msan
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Drives: 2011 E90 M3 / 2012 X5 35i M Sp
Join Date: May 2015
Location: Los Angeles, CA

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Quote:
Originally Posted by -c- View Post
Yep mines a 4 zone as well.
Some extra info, the night before the water pump died I was in the drive thru line at in-n-out and the car was squeaking pretty loud while idling. Never heard the noise before that night. It went away after we got our food and drove off. Thought it was the belt tensioner but I think it was related to the water pump. Maybe the belt was fine but the electric water pump was the thing squeaking. Anyways, pointing it out in case you hear squeaking, might be the water pump on its last legs.

Also like others, the night the WP dies the radiator fan was super loud. So listen for that too.
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