Actually, my car only got 80,000 miles out of the first set. A friend of mine at a local shop told me that these cars were made too heavy and wear out shocks and tires quickly. But as a DIY project, it was a cheap and easy fix as far as W140's go. I bought the car from the dealer used seven months ago with 72,000. It was fine until the last 1000 miles or so. The shock on the right side would hardly move at all and when it did it made this horrible creaking sound and the left shock bounced all over the place. I don't know how the previous owner drove the car but it is like new in all other respects. My other mercedes (190) got 200,000 miles before needing new shocks.