so I’ve had my E-Class for quite a while but all of sudden came out to get in her and front was way lower than normal. Rear level is normal. When I click raise car button” nothing happens. But once I start car compressor does kick on but only runs for Maybe 30-40 sec . And then kicks off but does not affect front. ? I anyone can assist I appreciate it. I don’t want to just go out and buy the strut conversion kit if I don’t have to thanks