HVAC Button Not Working (Blinking On/Off)

TimeFor · 02-03-2017, 12:40 PM

Anyone have trouble with their HVAC not working? Pressing the button does nothing it seems and the light randomly blinks on/off. Adjusting the temp knob all the way down seems to make the light stable but then it not as soon as the temp is changed. Also sometimes the light is just barely lit. Changing to Eco Plus does turn off the AC but switch it back doesn't seem to fix this problem. I also don't seem to notice much change in temp going from hottest to coldest. Though on auto mode the blowers do increase speed.

Ideas?

Video:

afadeev · 02-03-2017, 04:02 PM

Quote:

Originally Posted by TimeFor

Anyone have trouble with their HVAC not working? Pressing the button does nothing it seems and the light randomly blinks on/off. Adjusting the temp knob all the way down seems to make the light stable but then it not as soon as the temp is changed. Also sometimes the light is just barely lit. Changing to Eco Plus does turn off the AC but switch it back doesn't seem to fix this problem. I also don't seem to notice much change in temp going from hottest to coldest. Though on auto mode the blowers do increase speed.

Ideas?

I had something similar last year, and the (default) solution from dealer was to re-code my car to the latest software spec. That took care of that problem.

I remember reading in my M3 manual (can't find anything in i3 manual) that AC compressor will nor run when ambient is below in 32F or 40F. It will just blow outside air into the interior.

Doubt that's your problem in Cali, but you never know.

a

TimeFor · 02-03-2017, 04:26 PM

Quote:

Originally Posted by afadeev

I had something similar last year, and the (default) solution from dealer was to re-code my car to the latest software spec. That took care of that problem.

I remember reading in my M3 manual (can't find anything in i3 manual) that AC compressor will nor run when ambient is below in 32F or 40F. It will just blow outside air into the interior.

Doubt that's your problem in Cali, but you never know.

a

Yeah its been raining but definitely not below 40F. I'll take it to my SA tomorrow. Need new wiper blades anyways. Thanks.

TimeFor · 03-07-2017, 07:04 PM

Problem fixed itself and ended up not taking it in. Problem returned.

02-03-2017, 12:40 PM	#1
TimeFor Lieutenant 180 Rep 489 Posts Drives: 2019 i3S REx Join Date: Sep 2011 Location: Hollywood, CA iTrader: (0) Garage List 2019 BMW i3S REx [0.00]	HVAC Button Not Working (Blinking On/Off) Anyone have trouble with their HVAC not working? Pressing the button does nothing it seems and the light randomly blinks on/off. Adjusting the temp knob all the way down seems to make the light stable but then it not as soon as the temp is changed. Also sometimes the light is just barely lit. Changing to Eco Plus does turn off the AC but switch it back doesn't seem to fix this problem. I also don't seem to notice much change in temp going from hottest to coldest. Though on auto mode the blowers do increase speed. Ideas? Video:
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03-07-2017, 07:04 PM	#4
TimeFor Lieutenant 180 Rep 489 Posts Drives: 2019 i3S REx Join Date: Sep 2011 Location: Hollywood, CA iTrader: (0) Garage List 2019 BMW i3S REx [0.00]	Problem fixed itself and ended up not taking it in. Problem returned.
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