Thank you for your suggestion about Transmission Fluid change. But this Transmission is maintenance free for life, MBUSA does not pay for the fluid change. I will pay for changing Transmission Fluid every 50K miles and the first change will be in about a year and half.
I am allowed to enjoy the car only on weekend, my wife enjoys it on weekday. Sleeping in garage is not very enjoyable in the winter.
Have a nice day.