Hello everyone. I am New here and have a question. I have a 2000 s500. Three wheels are up one is down ontop of the wheel. The epoxie fix and relay has already been done. when I unlock the doors I can hear the compressor come on but car does not raise up. I have tried the manual raise switch and the car still does not raise. My questions are is my compressor still working if I can hear it and three wheels are up and does this mean that the airstrut is shot. I have found an inexspensive strut at advanced auto part store but not sure if it will work I have ABC on my vehicle can some please help. Should I unplug battery to help save my compressor and when changing struts.