When you start the car, or just the AC system, and notice a knocking sound like someone tapping on your door, that is indicative of a problem with the blend door actuator. Inconsistent Airflow: If the blend door is moving back and forth, then the airflow will be diverted incorrectly or maintained incorrectly.

2019 BMW 440i GC xD [0.00] Quote: Originally Posted by Thatnewx5guy. I have not yet fixed this issue it started working fine and has not acted up since. I ended up taking it to a shop. If it was my car I would have tackled it myself cause if I didn't fix it right I'd be fine with it not working for a bit.
BMW E / F Series Blower Motor Replacement / Fan Not Working / Droning Noise Add Me On Instagram @BMWDoctorOfficialGo to My Spotify Playlist which has all int
Toughest parts: pushing the plastic clip hard enough to get the FSU out. getting the control motor back in, especially the tops screw - the corner of the motor assembly clips into the trum; getting teh glove box properly installed and lined-up. Total time: 2 days to get the part plus 45 minutes labor.
1: Replaced FSU - no difference. 2: Tried connecting pins on FSU cable. #1 (lower right on line of 3) to #5 (top right of the 2 top ones. And #2 to #4 - blower motor instantly on full so not the blower. Pulled out radio and then air con control panel which pops out when pushed from behind.
This is for. diagnostic monitoring. The voltage generated by the fan when it. slows down (acting as a generator) must match the stored rpm. values in the fan output stage to confirm that the fan is operating. correctly. NOTE-. • If the ECM fault memory indicates a cooling fan fault, check that the. I've read about clogged heater cores or improperly functioning heater control valves but didn't see any real solutions. My engine is up to operating temperature (205+), the selector between the vents is on the red setting, temperature is turned up all the way, AC is off, and the blower moves a nice volume of air, yet it's the same temperature
If it is the blower motor you should replace your cabin air filter as well. Maybe some dirt got in that made the bearings fail. Removing the cabin air filter will give you a topside view of the blower motor, and to remove it comes out below the glovebox. I have the same squeaking nonsense in my 2011 328i.
Drives: 07 335i 6MT. Join Date: Sep 2011. Location: United States. iTrader: ( 0) 335i heat doesn't blow hot. With heat turned all the way up it never warms up, air out of the vents feels about the same as outside. Yes the dial is turned all the way to the red. The entire drive to work this morning I could see my breath in the car! XuuKd.
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