AC unit turns on and off on its own?
 

has anyone had this happen? i have an 02 x5 3,0 and the fan unit is turning off at will and on at will from time to time while driving? any help is appreciated! thx

its your blower resistor that has gone bad

better replace it before it kills your battery.

Like he said...
 

Had the same problem a while back. Simple DIY.

Amazon.com: 64116923204 00-06 BMW Blower Motor Resistor X5 530i 525i 320i 330i 330xi 325xi 325i 330Ci M3 325Ci 00 01 02 03 04 05 06: Automotive


Basically take a few things out of the way, unplug old and plug in the new.

Google it.

thx for the feedback but now a new issue. as my Climate control was on and off a little bit on its own, i proceeded to do a maintenance change of the thermostat and water pump. after everything was put back together, the CLIMATE CONTROL WONT TURN ON AT ALL.

the system throws out a code 74 (ac compressor control). the FSR was replaced on the car at 50 and i was told the FSR has nothing to do with the actual climate control turning on (just the fans).

PLEASE HELP