If you have a SLK R171 with leather seats, you should always complain about the Y-Nacht with Mercedes. If the vehicle still has a warranty, the seat covers will be replaced free of charge. I have now returned my second R171 SLK 200K, year 09/08, because the leather problem cannot be solved. The car has not even run 15TKM. Mercedes is known for the problem, but does not want the leather covers to be sewn. Mercedes has tried the following unsuccessfully so far: the filling material under the Y-seat was cut out so that the seat can lower. But in my opinion the leather got worse, because with the modified seat covers, the leather lasted 2 months. Zuletz has dyed the leather through Mercedes. Now it still peels off, but is not quite as bright anymore. Who wants to drive his R171 longer should keep an eye on the leather seats in the area of the Y-seat on the seat and the back cover. People with the same problem, can However, the car should still be in the warranty or warranty. It does not concern the SLK AMG and the special leather equipment BiColor, since the seats here are sewn completely differently.