So I have combed through many threads and online manuals and I am sort of stumped or possibly out of my league continuing to work on my air suspension. A quick rundown and hopefully there is something I am missing or you guys can point me in the right direction. First issue was a leak at the valve block. I would come outside and car would be on all 4s completely deflated. I would start it up and the compressor would kick on and the car would level out totally fine. I replaced the valve block with afm part and it worked for about 2 days with no leaks. Then one day as I was driving the rear completely deflated and the fronts were up in the air. Tried messing with the button in the dash to get it to level out to no avail. I drove for a few days and it would switch between deflating the fronts and inflating the back then deflating the back and inflating the fronts. I thought maybe I recieved a defective valve block to I replaced it again with an OEM mercedes block. Put it in and now nothing. The pump kicks on for about 10 seconds and nothing happens. I put the old part in and it completed inflated the whole car making it look like a monster truck and it is not driveable that way as everytime i hit a tiny bump the car gets some air like its going off a ramp. I replaced the pump as well just for a precaution. Fuses and relay have been replaced. Any thoughts? Its so weird that it would inflate different sides of the car, work sometimes and not others. But now I am stuck with it either completely deflated or completely inflated.