I HAVE A 1994 S320 MERCEDES,I WAS DRIVING THE VEHICLE TODAY AND WHEN I PARKED AND WENT TO REVERSE THE VEHICLE STARTED BACKING OUT AND JUST ROCKED AND WOULDNT BACK OUT ANY FURTHER. I KNOW THERE IS A PROBLEM IN THE TRANSMISSION BUT CAN SOMEONE SHINE SOME MORE LIGHT ON THIS REGARDING OTHER POSSIBILITIES IT MAY BE?