From the sound of it, you've done well in regularly keeping your Benz in shape.
Just drive as you would with much pleasure as our Benzes are built to last more than a million miles, and the spare parts are pretty durable.
Regular driving will able you to detect any "irregular" sounds and responses which, once ractified, would save you on bigger service/repair bills.
Our MB would only have more problems if its not serviced regularly, or when its left to decorate your garage (just as airplanes will have more problems when they don't fly).
126 tailed by a 203, 129 leading the pack.