This is my 3rd visit to my local MB Dealer for a reoccuring problem with the Keyless-go system. It seems to work only if I hold they key in front of the dash now. The first two times MB thought it was fixed but I returned it only days later. This time I am in the loaner for two weeks and we are waiting on a control module from Germany. Also had the radio replaced and software flashed on it as well. Any tips on this problem I might mention to these guys ?