I have a 2002 CLK320. The front seat's power glide suddendly stopped working when I tried to get into the rear cabin. My issue is, this is not the 1st. I had exactly the same problem last October. The MB dealership had no answer as to what could have caused it. They had to replace the "control module". (Thanks it's still under warranty but very bothersome). Does anybody know if this is a common problem?