I recently purchased the W210 DVD and have been familiarizing myself with how things are done on the newer chassis. I'm absolutely stunned at the number of computer modules that are linked into the CAN. I was aware that the engine and transmission coordinated activities via a computer network but lighting control, rear view mirrors, seat controls and climate control systems are also networked together via a separate "interior CAN"

After seeing the level of computer control in the newer W210 chassis I'm amazed that they work as reliably as they seem to do - I'm guessing the W208 chassis will be the same. There are lots of computer modules in todays cars, I'd guess 30-40 in a W210 chassis.