My name is Dexterln, I have a 2001 SLK 320 with 143,000 miles. Right now I am having an issue with the shifting. I noticed yesterday that while I was driving that it would kind of jerk a little bit but then it drove regularly. Now this morning it will not come out of what seems to be second gear. Also when I move the selector shift from P to R or D there is a hard jerk. Any help would be greatly appreciated.