After driving for a good 20 minutes I will start to feel tons of heat coming from underneath by dash on the driver's side. Right now my a/c wont work and when I put on just regular air it fluctuates from fast to slow.
I dont know if my air and a/c problem is causing the heat coming from my driver's side or not but if you guys could help me out i would greatly appreciate it! The heat gets so bad sometimes that it makes me sweat
That's strange, because I just bought a 98 328i, and I looked through the service records and one of the things the car was taken to the dealer for was excessive heat blowing from under the dash! The dealer couldn't pinpoint the problem, and I don't notice it, so apparently the problem went away on it's own Maybe you will be so lucky!
the heater valve basically diverts coolant to pass through the heater core, the radiant heat from the heater core is what heats the air that flows through the vents. If you're having heat all the time then the valves could be stuck open allowing coolant to flow through heater core no matter what. I forget which hoses are which, maybe real oem has a diagram of it. It's a bitch to remove and or replace, but an easy way to check would be to warm up the car and feel the hoses by the heater valve, one or two should remain cold if there isn't coolant flowing through the heater core, if they're all hot then you know there's coolant flowing through the heater core even with the dial turned to cold. I hope this makes sense.
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