Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.
Rough Shifting of Automatic Transmission on Mercedes-Benz SLK55 AMG
Average mileage: 67,000 (20,000–125,000)
9 people reported this problem
2006 Mercedes-Benz SLK55 AMG 125,000 mi, Visitor
Transmission Internal speed sensor going bad