New fan lists for $330, takes about an hour (if you have the right tools) to install. To test the fan itself, you'll need a source of 12VDC (I use a motorcycle battery). The connector for it is on the upper left side of the housing. Disconnect it. You'll find a bunch of female pins on the connector going to the motor. My coolant outlet temp sensor had some corrosion that was affecting the main fan speed due to inaccurate temperature reporting. Easy and cheap fix. Just pull the sensor out and check the connections. One possible solution. 2001 530 Steel Blue Metallic, purchased Dec 03 SP/PP/CWP/Slushbox (I know I know) OEM M5 bumper, 40% Huper Optik ceramic 1184 posts · Joined 2011. #8 · Oct 9, 2014. Hook a 12 volt test light to battery +, turn the ac on and then probe the signal wire ( it will be the smallest of the 3 wires) at the fan. If the test light lights up then you know that the fan is receiving a signal. Save Share. AC compressor not kicking on, tested different areas still not kicking on, same for AUX fan,,,,,need help locating ac compressor or/and aux fan relay.2003 bmw 530i … read more Kenny The most common causes for BMW X5 AC not blowing hard enough are clogged cabin air filter, dirty evaporator coil, and frozen evaporator coil due to low refrigerant. Less common causes are dirty or sluggish blower motor and faulty mode door actuator. 1. Clogged cabin air filter. 8011A9: Motor fresh air / dynamic pressure: blockage. 8011AC: Motor circulating air: blocking. 801207: Fan output stage: Interruption in the load circuit. Hi, Noob here. I have a 2012 535i xDrive. And recently the cabin blower fan stopped working. Basically it will turn on for a few seconds, but then it slowly dies down and then turns off. 2001 BMW X5 Climate Control (AC) not working. My Climate Control System has stopped working completely. No cooling or heat - fans won't turn on at any speed. Displays still have power and show temps and settingsbut nothing.I have tried multiple combinations of settings including fresh and recirculated air, front and rear defrost, AUTO and The most common causes for AC fan blower motor not working in BMW 7 Series are blown fuse, bad relay, resistor or control module malfunction and faulty blower motor. However, a bad electrical connector or broken wire, or a defect in the climate control unit can also cause the blower motor to stop working. If you’ve been having trouble with your car’s air conditioner lately, there are a few reasons it could not be working properly. Here are four reasons your BMW’s air conditioner is not working. A/C Leak. One of the most common reasons your BMW’s air conditioner isn’t working is because of an A/C leak. TOP 5 REASONS WHY AC NOT WORKING ON BMW, BMW AIR CONDITIONER DOES NOT WORKIf you have BMW and your A/C AC is not working and you want to know the top 5 reaso lvMT.