Question about 1998 BMW M3
Make sure to find the hoses going to the firewall or to the cab from engine, they turn hot, both has to be hot if one is hoter than the other, that means your heater core under the dash is cloged, or the valve controling the flow is not opening, the valve is under the engine compartment, somewhere between the hoses, and
if both hoses turn hot, then you might have a bleen door inoperative blend door controls the cold or heat passege in the cab, try that and i will apreciate your feedback
Posted on Jul 02, 2008
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Posted on Jan 02, 2017
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