AC Help 1997 MB C230/280

[turbojimmy]

I'm trying to help out a guy at work with the A/C on his Benz. He's going thru a divorce and doesn't have a lot of $ to spend on it. It worked last year, so I figured I could top it off for him. I have the manifold gauges and other tools so why not?

Well, first of all I can't find the high pressure service port. The low pressure port is right by the compressor, but I can't find the high pressure anywhere. Anyone have a diagram or description they can point me to?

Second, I can't get the compressor to run. I'm sure it's because there's not enough refrigerant in it but it looks like the pressure switch has 3 wires. Which, if any, do I connect to get the compressor to run? There's another plug on the drier, but it looks to be just a high-pressure cut-out.

TIA,
Jim

 

[Chad Oliver]

TTT

You might try http://www.mbworld.org/ , it's hard to get technical advice there sometimes tell your friend good luck. I invested another 2k last year on the A/C in mine.