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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 10-12-2004, 10:24 AM   #1 (permalink)
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Hello, I have a '88 M3 E30 and the AC doesnt work. Instead of the system I think it's only an electrical schem problem. Since I bought the car just a few weeks ago the fuse of the AC and fan blower blows each time I try to connect it. The thing is that I see repair over the swicht. Two wires are briged. Without this bridge the system doesnt start. One wire from the swicht becomes hot and the the fuse blow and the system stops. Do you think that the swicht is the problem? In the other hand: have anyone electrical schems of these parts?

Thas in advance, regards.
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Old 10-12-2004, 12:22 PM   #2 (permalink)
OMFG another one!?
 
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Someone has mucked with it. Have a pro look at that, don't want any electrical problems! ghead
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Old 10-13-2004, 12:52 AM   #3 (permalink)
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Quote:
Originally posted by jinkly@Oct 12 2004, 09:24 AM
Hello, I have a '88 M3 E30 and the AC doesnt work. Instead of the system I think it's only an electrical schem problem. Since I bought the car just a few weeks ago the fuse of the AC and fan blower blows each time I try to connect it. The thing is that I see repair over the swicht. Two wires are briged. Without this bridge the system doesnt start. One wire from the swicht becomes hot and the the fuse blow and the system stops. Do you think that the swicht is the problem? In the other hand: have anyone electrical schems of these parts?

Thas in advance, regards.
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I would suspect the K7 relay and then I would replace it AND the switch. Some people do not know the K7 controls a lot of accessories. My current E30 I bought cheap because there were many things that didn't work, including the A/C and blower motor. A used K7 and a fuse later, everything worked.
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