PeachParts Mercedes-Benz Forum - View Single Post - Long and Covoluted intermittant A/C Problems with '88 300TE

Richard Wooldridge · #13 06-09-2007, 02:49 PM

You could have a high pressure cutoff- this could be caused by either a clogged expansion valve or a deteriorated hose that has collapsed upon itself, shutting off the flow of refrigerant. It could also be a drier plugged with leak sealer. The thing to do is to jump out (very temporarily) the high pressure cutoff switch when the failure occurs and see if the compressor starts. If it doesn't start, ohm out the clutch coil while it is hot, it could be an intermittent coil. You should be able to locate the lack of voltage to the clutch fairly quickly, I'd think...