Contrary to popular myth, MBs are NOT high PM cars. The PM schedule of tasks is about the same as a typical Toyota. Like any older car, their repair frequency will increase with mileage and age (repair and PM are two different things) because they are fairly complicated - more things to break, however, they are very well engineered and built cars.

The key to the life and reliability of a used car is whether or not the PO had the MB recommended PM done and kept up with all the minor repairs. For this reason maintenance and repair records are very important. If a car has records, audit them carefully. If the car has no maintenance/repair records, keep looking.

Duke