Q: Mercedes SL a/c pressure switch location
Please help!!!! I a. Trying to find the location of a//c pressure switch on a 1983 European Mercedes-Benz 280sl.
When I connect A/c compressor wire to 12v, A/C blows cold and A/C switch lights up. Without the 12 volt jumper, the A/C switch does not light up, and I get no 12 volts to the compressor clutch. Also, there is a dial under the dash near passsenger side of center console. What is this dial for? Does this car have a pressure switch for the A/C? maybe that is why it is not coming on? needs more freon? Where is the relay for the A/C locaated?
I need to find the pressure switch as well, it is not near the dryer.
Thanks!!!
My car has a manual transmission.
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