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Old 07-12-2011, 06:20 PM
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dual zone ac is different but set the same...

My 4.4 dual zone AC blows ice cold air out of the drivers side,,but......kinda alittle cool air out of passenger side....There both set to 60 degrees...any ideas???? thanks
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Old 07-12-2011, 08:39 PM
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Due to the design of the evaporator this happens when the ac charge is a little low. The E53 only uses 0.98 lbs refrigerant total so you don't need to lose much for it to start blowing warm. My suggestion would be to bring it to the dealer or a shop with an automatic ac machine to recover, vacuum and charge to the proper level (which will get it blowing right again) then do a leak check for you.
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Old 07-12-2011, 10:54 PM
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many thanks weasel!
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Old 07-13-2011, 01:13 PM
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Quote:
Originally Posted by Weasel View Post
Due to the design of the evaporator this happens when the ac charge is a little low. The E53 only uses 0.98 lbs refrigerant total so you don't need to lose much for it to start blowing warm. My suggestion would be to bring it to the dealer or a shop with an automatic ac machine to recover, vacuum and charge to the proper level (which will get it blowing right again) then do a leak check for you.


Mine has this same issue a few days ago. In a shop, they charge and the system back to freeze again.
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