The clutch at the front of the compressor engages so that the compressor will turn with the fan belt. Since the clutch is not engaging, the compressor is not turning so the ac system is NOT working. The clutch is energized when the ac is switched on, however there is a low/high pressure switch that is a part of this circuit.
This symptom indicated a failed final stage resistor on the older models (E39, etc.), but likely indicates a failing regulator on this vehicle. It's located behind the blower fan. It's now on my growing (and sometimes shrinking) list of things to work through on my new to me vehicle. 2007 X3 6MT; 2022 M3 Base.
The temp sensor in the lower hose is the one the DME uses for the Aux fan. You can’t read that temp in the cluster. The engine coolant temp sensor in the water pump will also start the Aux running as well as turning on the AC. You generally won’t see the Aux fan spinning as soon as you turn the AC on. New Sig, per Hitdog's request, it’s Air Conditioning Stopped Working - No codes or alerts. 2011 X5 50i. Hello, Just recently, with no trauma or specific event, the AC stopped working. Started car one morning and not working. Seems to be cold on fresh start in morning but quickly the air blowing is not conditioned at all. Blower is working along with all vent settings and
calwesttrailer Discussion starter. 4 posts · Joined 2012. #3 · Nov 14, 2012. battery went dead. charged it up to use for a few days then replaced the bat. but after battery went dead and re charged, the fan would only work on slow speed and the ac snow flake wont come on. this is all i know of that is not working. i found a post on this prob
Once the leak has been found, this must be closed again by replacing the respective component. 4. Dirty evaporator. Dirty evaporator can also be the reason for AC problems on your BMW X1. Cabin air filter captures most of the dirt or other airborne particles, but some escape and fall on to the evaporator. The most common causes that hinders normal operation of air conditioning system on your BMW 750i are dirty cabin air filter, refrigerant leak, dirty or clogged condenser, dirty or clogged evaporator, bad blower motor, defective compressor, faulty blend door actuator or any fault in the electrical system. 1. Dirty cabin air filter. All wiring OK. 50 amp fuse good. Code fault 27-9D still present with aftermarket fan. I removed front bumper and replaced the aux fan I purchased new from AutoHausAZ (Part number 64546988913; "Genera" A/C condenser fan; $178.12) with a new BMW-branded fan purchased new from Tischer BMW for $332.20. Started car, turned on A/C and auxiliary fan 163 posts · Joined 2013. #1 · Aug 3, 2017. My wifes 07 X5 vents are not blowing air. There is no air flow through them, the defrost (dash) vents are the only vents blowing. All levels of low and highs adjust the blower settings just no airflow from the mid dash vents nor the rears. I set the settings on the climate control a while back and aJBvOk.
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