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Compressor wont kick in. Works if I jump the compressor solenoid. System has pressure but the pressure swich does not show any current to either terminal. Where do these wires go ? Where is the relay for the A/C<br> JN
 

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Mercedes has an electrical troubleshooting guide. I ended up buying the maintenance CD from them. Has the electrics, chassis, engine and preventive maintenance manuals on it - including the forms!<br> <br> I've found this to pay for itself if you like doing your own maintenance.<br> <br> Stan
 

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Thanks, I bought the electrical trouble shooting manual but I think my problem is in the climate control switch (which has 2 x 12 pin connectors) and difficult to troubleshoot. I think I just have to replace the unit. Thanks again<br> <br> JN
 
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