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Re: 1987 535is A/C (archive)

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Posted by Tim in N. FL on January 12, 2001 at 11:34:45:

In Reply to: 1987 535is A/C posted by Joseph on January 11, 2001 at 21:59:43:

I just spend $1100 on the A/C in my 87 535is. If this problem you're experiencing is a recent one...just make sure your system isn't "open" or you will likely be installing a new expansion valve and several expensive hoses like some expensive r-12. I stuck with the r-12 for now despite the advice of many here. I had several BMW techs on the net and locally say that it was best to stick with the r-12 because that is what these systems are optimized for...convert to r-134a only when r-12 is no longer available. I'm satisfied with the decision so far. Soon after that, my Auxiliary fan died...which I replaced with a salvage yard model and my labor for about $100. Needless to say, this wasn't much fun. But, here in Florida I need the cool. If I had it to do over again I would NOT fix the A/C...sunroof and windows are just fine when I'm staring at an $1100 credit card bill.

I have an A/C question.
On my 1987 535is, the A/C doesn't work!
Here is what happens...

The fan for fresh air and heat works fine as do all the flaps. When I press the A/C button, the fan stops, the a/c button does not light up and nothing happens.

I am thinking the switch is bad or a fuse. The fuse under the hood in the fuse box is OK.

Am I wrong, where should I look to next?
If it were the A/C, wouldn't the A/C fan still blow?



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