Question about 2001 BMW 325

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2003 bmw x5 4.4 blower does not work, all fuses checked and are ok,no air coming out, the rear air works though, help

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Locate the blower and get a volt meter and an ohm meter. If the motor has two wires coming off it you will need to check two things, the first is for voltage. If the vehicle needs to be running for the blower to work then start it and turn the switch on its highest setting. Set your multimeter on DC voltage of 20 volts if its a manual meter.Touch the black probe of the meter to a ground, be it an exposed bolt or the outside ring of your cigarette lighter/power adapeter, just make sure you don't short the center contact in it. Check for 12-15 volts coming off either wire, if you don't see any voltage to either wire then its possible the switch is bad, and try again by using a different ground. Carefully test both wires using the DC volts setting to verify votage and ground off the wires. If you get a reading then your motor is bad and needs to be replaced.

Posted on Jul 17, 2009

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