2016 Mercedes-Benz AMG S63 Problems

My steering deactivates and totally locks out while driving. I do get warning messages and it comes on when the steering deactivates and then goes out its like intermittent sometimes I wont have steering at all for a few minutes and sometimes it just goes in and out. MBUSA has an active recall on this very issue but my car even though it was built in the time frame they say other cars have been built they are not willing to fix it. It has been inspected twice and the dealer has verified the steering rack needs replacement, they still wont fix this. The message that comes on is power steering Malfunction see owners manual. When this locks out i get other items that wont work either like lane departure assist and blind spot inop lights. This started happening slowly roughly a year ago but it would only lock out once or twice a few days here and there and wouldn't do it for awhile, I brought it to the dealer then, which I showed them videos of what was happening and asked them to contact mbusa which they said they would call me and never did, I waited about a year while not driving it hoping maybe they would add my car to the recall and that never happened so I escalated the issue and called them myself, they asked me to bring it to the dealer again and I did they verified my problem and have said they wont fix it bc my car is not on the recall list. The recall my car should fall on is 16v899000 it is doing the exact thing this recall is worried about. I had to drive like this a few times bc I had no ride, driving like that when I know its about to lock out is a tiny bit better then when I am not expecting it and may need to again but it is not safe when trying to turn off an exit or a street it locks in the middle of turning or at the start of a turn and gets harder to control.

My steering deactivates and totally locks out while driving. I do get warning messages and it comes on when the steering deactivates and then goes out its like intermittent sometimes I wont have steering at all for a few minutes and sometimes it just goes in and out. MBUSA has an active recall on this very issue but my car even though it was built in the time frame they say other cars have been built they are not willing to fix it. It has been inspected twice and the dealer has verified the steering rack needs replacement, they still wont fix this. The message that comes on is power steering Malfunction see owners manual. When this locks out i get other items that wont work either like lane departure assist and blind spot inop lights. This started happening slowly roughly a year ago but it would only lock out once or twice a few days here and there and wouldn't do it for awhile, I brought it to the dealer then, which I showed them videos of what was happening and asked them to contact mbusa which they said they would call me and never did, I waited about a year while not driving it hoping maybe they would add my car to the recall and that never happened so I escalated the issue and called them myself, they asked me to bring it to the dealer again and I did they verified my problem and have said they wont fix it bc my car is not on the recall list. The recall my car should fall on is 16v899000 it is doing the exact thing this recall is worried about. I had to drive like this a few times bc I had no ride, driving like that when I know its about to lock out is a tiny bit better then when I am not expecting it and may need to again but it is not safe when trying to turn off an exit or a street it locks in the middle of turning or at the start of a turn and gets harder to control.