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cyclingkevin
08-18-2012, 04:17 PM
Heat from front window defroster vent and always on with blower as well as when ac is on. Changed heater control valve. Still have same issue. Any ideas on what I could try next?

I have used that vent setting and heat is on. It does get hotter when adjusting heat setting with blower.

Only thing I can think of is to bypass heater core with the hoses. I have 95 530i. Thanks for any help.

Russell
08-20-2012, 09:26 AM
There are heater door motors that control door flaps to direct cool and warm air. Perhaps a motor has failed or a flap is broken. Possibley one of the heater cables that directly connects to a flap is broken. Just gueesing her.

cyclingkevin
08-20-2012, 09:37 AM
I will look at this. Thank you.

shogun
08-20-2012, 08:33 PM
read this thread and you know what to check/do
http://www.bimmernut.com/forum/5-series-bmw/40390-cold-air-passenger-side.html