Guys find the relays, and start checking them. My electrician just fixed my rear soft close issue. First thing he said is the relays in our cars are bullshit, and should be replaced with either seimans or hella brand. My issue was sticking relay. Once replaced everything started working right away. As soon as he saw them, he knew the problem. He said they fail all the time, and it is an issue with American built BMW, as the german ones have the Seimans.