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12-08-2006, 08:02 AM
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#1 | |
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AF Newbie
Join Date: Jun 2006
Location: belfast
Posts: 7
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leftside heating
the heating on the leftside of my e32 is only blowing cold air.what are the most likely causes and how do i fix it.....thxs
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12-08-2006, 10:07 AM
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#2 | |
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AF Enthusiast
Join Date: Apr 2002
Location: Poquoson, Virginia
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Re: leftside heating
Usually it is the Stepper (air distribution) valves that have malfunctioned. Wehn you start the car or shut it down you often hear a buzzing sound, these are the stepper valves resetting to a default position. Go to http://bmwe32.masscom.net and check out this site for a better explanation.
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01-21-2007, 01:36 PM
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#3 | |
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AF Newbie
Join Date: Aug 2003
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Re: leftside heating
There's a water pump behind the dash on an e38 which controls whether warm air comes out of a particular side.
Cost me about £170 for the part. Dealer to fit is another £120 I think. |
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01-21-2007, 01:47 PM
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#4 | |
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AF Enthusiast
Join Date: Apr 2002
Location: Poquoson, Virginia
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Re: leftside heating
I am more an E32 person and there is an auxiliary heater valve that sits in front of the driver (USA versions) that can cause problems, but in my limited experience it has been the stepper (air distribution ) motors that have given me grief. These devices, nine on my car, (1988 750il) open and close the vents to allow conditioned air to flow.
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