We took delivery of our 2008 SLK 350 in December of 2021. That same day, a Service “B” was done by the seller at our local MB Dealer. Though this car had 123,000 miles on it the previous owner had had EVERY service done by the book at the MB Dealer since new. So, thanks to some personal medical issues we haven’t even put 1K miles yet since we bought the car. The car says “Service D 62 Days Past Due”. What exactly is a Service D? It isn’t in our owner’s manual. One very reputable local German Service company said “don’t worry about it”! “Maybe next year get an oil change and check-up”. Any thoughts anyone?