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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 02-26-2015, 04:57 AM
auTTiMan auTTiMan is offline
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Location: USA
 
Join Date: Feb 2015
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Mein Auto: 745i
Heater not heating....

2005 745i

I've checked the radiator fluid level and it seems to be full.

Any advice would be appreciated.
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  #2  
Old 02-26-2015, 10:58 AM
Sal_boy Sal_boy is offline
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Mein Auto:
I had the same issue with my 06 750i try checking the FSU or check the fuses on the rear back of your car. If that doesn't work you may want to stop by some local mechanic
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  #3  
Old 02-26-2015, 03:05 PM
Rick in Yuma's Avatar
Rick in Yuma Rick in Yuma is online now
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Location: Arizona
 
Join Date: Dec 2006
Posts: 295
Mein Auto: 05' 760li,94' H1,08'Smart
There's a valve that electronically opens and closes that allows water from the radiator to the heater core. There's also an auxiliary waterpump that moves the water to the heater core. If the valve is not opening there is no hot water going to the core. You can find the parts listed on

www.realoem.com

Once you look at the two parts you'll see they are on the right side of the engine behind the power steering reservoir.
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  #4  
Old 02-26-2015, 05:36 PM
Americasoulja Americasoulja is offline
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Mein Auto: 2006 bmw 750li
Heater valve...
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  #5  
Old 02-28-2015, 01:39 AM
auTTiMan auTTiMan is offline
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Mein Auto: 745i
Thanks for the replies but I've noticed white smoke coming out of the tailpipe. Either an ntake or head gasket may be the problem.

Is this a common problem, or are there any service bulletins covering this?
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  #6  
Old 02-28-2015, 03:10 AM
oceandiver86 oceandiver86 is offline
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Location: Switzerland
 
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Mein Auto: z4
hey,

not sure if the White smoke is the cause of the heater Problem.
maybe the valve steam gaskets are the cause for the smoke.

as for the heater, i would check as well if there is warm/hot water flowing from the engine to the heater core.

hope this helps, Daniel
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  #7  
Old 03-01-2015, 02:33 AM
TechFreak TechFreak is offline
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Mein Auto: AC Schnitzer 745i Sport
I'd go with what Americasoulja said ...Heater Control Valve......this guy had same issue.....

http://www.bimmerfest.com/forums/sho...d.php?t=743808


Also this DOC might help trace the problem :

http://www.bimmerfest.com/forums/att...0&d=1353378307


.

Last edited by TechFreak; 03-01-2015 at 02:45 AM.
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