aux fan not working on 1990 BMW 525i

aux fan not woking i checked fan with power probe it works that way under the hood the relays are not labled. the haynes repair book do not help much????????

by in Lothian, MD on May 19, 2009
1 answer 1 comment
ANSWER by on May 22, 2009
So, the AUX fan does not come on when the A/C is turned on? Does the A/C work properly? Does the engine run too hot? If the A/C works properly and the Aux or condenser fan does not come on, it could be a relay. Does the fan have power and ground when the A/C is on? If not, which is missing is it power or ground or both?
COMMENT by on June 24, 2010
I have a 96 740 I replaced the blower motor and the ac still doesnt work my ? is would the aux fan effect the blowing of ac? a little comes out when u drive other than that nothing at all.. plz help..

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