Hello, my AC isn't functioning...I don't know if it's a bad compressor, control, or just low on gas. Is there any way to jump the compressor just to let me know whether or not it will run? chevy trucks are easy to do, I've never worked on an MB AC before.
Thanks
greg

You should not jump the compressor. If it is low on refrigerant the compressor gets no lubricant.

Put on gauges to check pressures and proceed from there.

Good luck,