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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 03-08-2009, 08:42 PM   #1 (permalink)
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aux. fan switch.....

I manually jumpered the low and high side of the aux. fan switch plug and low works fine but high wont come on at all. The relay clicks, which I am assuming is working fine but maybe not, I am unsure. I know low has a resistor in the loop but I dont think high does. Is this right? BAD HIGH SPEED RELAY??
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Old 03-08-2009, 09:38 PM   #2 (permalink)
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correct me if I am wrong but don't you have a belt driven fan?
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Old 03-14-2009, 12:39 AM   #3 (permalink)
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No theres a main clutch fan
then aux electric fan
I ended up removing mine with all the AC LOL
hard to find those parts,try ebay though
the resistor is a resistor that can be bought at electronics places
some good threads around here i think?
search on aux fan
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