Drives: 2006 bmw 325i. Join Date: Jan 2019. Location: Minnesota. iTrader: ( 0) 06 325i no ac/heat blowing. Replaced blower motor and resistor but still not blowing. Check function controller okay, measure power at resistor 14.75 volts but check at the blower motor is .07 volt. Need diagnostic help, much appreciate.
E90 blower troubles. My son's 2009 328 xi started having intermittent problems w heater/ac and heated seat controls. Both would go out and come back, then controls went out for good. Changed fuse, came back for a bit but went dead again. Been to dealer and local mechanic, both sent me home with it working, but went dead again.
BMW's map is ridiculously stupid, so it's a bit tough to be sure you have the right ones and all of them. 121, 177, 181 seem to be the right fuses, but who knows which fan that might be for. 2001 330xi
198 posts · Joined 2011. #3 · Dec 27, 2011. Same thing happened to me yesterday with my steering wheel. A search on this forum showed that others have had the same. recommendations were 1) do not turn on heater for 10-15 seconds after car starts. 2) replace the fuse for the heater. might work with your seats as well.
Temperature control is by left and right hot engine coolant radiators, after the one AC evaporator, each with its outlet thermometer (that you can see just inside the left and right center grilles). MAX shuts all the flappers except those that blow in your face, sets blower speed to maximum, and thermostat to 60°F.
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bmw e90 heater fan not working
