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Old 05-11-2003, 10:37 PM
sms sms is offline
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Join Date: Dec 2001
Location: Hartford
Posts: 134
a/c dead on 560sl


My a/c has been not working for awhile. R12 has all leaked out. Gages read 0 for high and low side. Believe it is the compressor since there is a dirty oil residue on it, but the dirt could just be normal road dirt. Anyway, I partially charged it with a substitute refrigerant (just for finding the leak) that contained a flourescant dye. I got the pressure up to 60 on the low and 50 on the high side, but could not get the compressor to kick-in even when I shorted out the pressure switch. Refrigerant leaked out in 1 day and was unable to see the dye anywhere with a black light.

Why couldn't I get the compressor to kick-in and could the leak be in another component other than the compressor? How should I proceed?

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