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Re: A/C Mystery... help
#1 make sure auxillary fan is working,electric fans in front ,behind radiator,should work with ac on,both fans
#2 heater control valve or hot water valve bad,stuck in the open position allowing water ,aka hot coolant into evaporator area making cool air hot
#3 ac low on charge or over charged ,ac will blow out warm air if overcharged
i have a 2001 grandprix gtp special edition 2 door coupe and i am a bmw tech as well
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