Brake Sensor problems of the 2002 Mercedes Benz CLK320

My major concern is with regard to the failure of abs and traction control while driving in the snow during the snow storm on Dec 5th. These systems are supposed to provide a layer of safety in these conditions. When I contacted mercedes roadside assistance, they informed me that the sensors must have gotten wet and therefore made the system inoperable. Then does this mean that there is an inherrent design problem with this vehicle. I hope you will take a look into this problem, before anyone else has to go through a nightmare driving situation as I had to. That I did not get into an accident is a miracle. However someone else may not be so lucky. Dt.