My AC was working fine. Yesterday it stopped cooling, started, then stopped for good. I'm sure the refridgerant didn't leak. The clutch(?) at the compresser doesn't seem to engage now. Was thinking to test wires for power at compresser. If no power, wonder if it could temporarily be hot wired to a switch? It's hard for me to get at wire hook-up at compresser. And of course my indy ( with car lift ) is closed til next Tuesday.
Any ideas??

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1984 MB 300SD Turbo

check the low side pressure - make SURE the refridgerant has not leaked out....

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95 E300 Diesel 265k and counting

Don't jumper anything, if you get the clutch to pull in and there's no Freon (and therefore oil) it will destroy the compressor
You have a complicated system to troubleshoot, probably need to wait till your Indy returns.

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!

Good news. The plug wasn't connected properly.
Thanks for the advice.

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1984 MB 300SD Turbo

well, call that fortunate! Some shops would have hooked up pressure gauges and taken some readings and then (Maybe!) they would find the loose plug but still charge you something like $225 ( or more!) for the work

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'95 E320 Wagon my favorite road car. '99 E300D wolf in sheeps body, '87 300D Sportline suspension, '79 300TD w/ 617.952 engine at 367,750 and counting!