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Old 11-29-2012, 01:07 PM   #15
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 11,594
My Ride: 2004 330Ci OBM
Originally Posted by Neotate View Post
After I rev the car a bit over 3000 revs i start to get warmer air
Sounds like your car is having a problem keeping water flowing through the heater core. It could be a stuck heater core valve (part #2 in this image):

Part Number: 64118369805 (at least for my 2004 330Ci)

Try bleeding the system before you take this part out to examine it.

Last edited by WDE46; 11-29-2012 at 01:23 PM.
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