After looking in vain for a compressor control unit, I discovered that my car has a MAS. The Mercedes CD never mentions this fact in the checkout procedures. After finding the beast behind the battery, I found that I have voltage to the MAS from the pressure switch, but no power out to the compressor clutch. Jumpered the compressor clutch and it works. So it seems that I'm stuck with a new, rebuilt or used MAS. To add to my problems, the blower motor stopped running. Luckily this was covered in another thread, and I found the little black fuse box with the strip of metal between contacts. Now the blower runs again, but the annoying thing is that the Mercedes CD manual doesn't mention this fuse. Their maintenance manual is a real pain.

Thanks to everyone,

Walt Lake




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