BMW M3 and BMW M4 Forum - View Single Post - Heater is blowing cold air when idle(car fully warmed)

MrSmartyPants · 02-01-2022, 08:26 PM

Have you checked the mixing valve on the front middle vent? If it's set to blue (cold) you won't get warm air.

02-01-2022, 08:26 PM	#7
MrSmartyPants Lieutenant 360 Rep 500 Posts Drives: F80 M3 - 6MT_MW on SO Join Date: Dec 2016 Location: CT iTrader: (1)	Have you checked the mixing valve on the front middle vent? If it's set to blue (cold) you won't get warm air.
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