A door control module/actuator may fail. Our technicians recommend finding an expert to repair them. Taking the door trim panels off requires expert knowledge because they can break and the pieces are very expensive.Google+
Car Problem Reports
Mercedes-Benz CL55 AMG Door Control Modules May Fail
Mercedes-Benz CL55 AMG Problem
Average Mileage: 73,500 mi (57,000 mi - 90,000 mi)
Visitor, 2002 Mercedes-Benz CL55 AMG, 90,000 mi
2002 CL55 AMG
Same issue with 2005 CL55 AMG, the right passenger door actuator has failed.