I was at the dealership recently for an oil service, when the shop manager noticed that the transmission shift mode switch was in the "W" position. He said that I should use the "Summer" position regularly, as using the "W" position too much would disrupt the shift software . The car is a 99E300D. According to the owner's manual, the difference between the two shift modes is only that in the "W" mode the transmission uses a second gear start, and has nothing to do with summer, winter, sport, wimp or any other factor. I asked him whether owners who lived in Quebec, which has many months of real winter, shold use the "S" mode to avoid software problems, or if the tranny somehow knew if it really was winter! He didn't have an answer.
My questions are; is the shop manager correct? Has anyone had problems with shifting after using the "W" mode? Should MB have labled the switch "N" for normal shifting, and "T" for temporary second gear start?
Steve