Fan on, Fan Off. Fan on, Fan Off...
#26
Does anyone know where the high and low speed fan relays are located? All I see is one relay in this diagram.
http://www.realoem.com/bmw/showparts...20&hg=17&fg=05
I'd like to test the relays as a last resort before replacing the entire cooling fan assembly.
http://www.realoem.com/bmw/showparts...20&hg=17&fg=05
I'd like to test the relays as a last resort before replacing the entire cooling fan assembly.
The smaller of the two plugs has two small wires that go to a relay resident inside the 'black box' of the fan housing. (This relay receives signal power via a 5A fuse in the engine fuse box. If that fuse is blown, you will inhibit operation of that relay.)
The larger, three-wire plug has a hot wire (switched by the above mentioned relay), a ground, and a switched power that comes from one of the relays in the engine fuse box.
Last edited by katanabob; 07-31-2008 at 09:46 PM. Reason: clarification
#27
Resistor probably available from RadioShack?
Steve
#28
Since getting a new power steering fan about 2 months ago, the "behavior" of the cooling fan changed completely. It used to come on "full speed" after circling the parking structure for 5 minutes or driving a bit spiritedly. Now it works at low speed constantly when the AC on, and comes on ONLY after sitting in traffic for long times, etc.
I dont know what to make of this, but it appears that my old PS fan was not working properly and the cooling fan was on lot more often because of this???
I dont know what to make of this, but it appears that my old PS fan was not working properly and the cooling fan was on lot more often because of this???
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