The 2013 Mercedes SL550 didn't have any major problems and is generally considered to be a reliable vehicle. There have been reports to the NHTSA of some relatively minor issues. The vehicle transponder may occasionally give an inaccurate reading for the location, which can delay emergency responders in the event of a crash. The electric power assiSTSystem utilizes control pins which can potentially lose connection, resulting in a loss of steering assistance. Additionally, should this loss of connection occur, the resulting resistance between pins can result in an engine fire, even if the vehicle is parked with the ignition off. Finally, the onboard computer system doesn't detect it when a very light person is sitting in the passenger seat, resulting in turning off the air bag for it. Should a crash occur where having the air bag deploy would be necessary, any passenger would incur great injury due to its failure to do so.
Cindy D
July 16, 2020
There are not any specific issues with the 2013 mercedes sl550, however due to the age of the vehicle it is likely there will be issues with the engine or transmission. Rust or damaged metal could have set in over time. Likewise the brake lines and other fluid lines should be checked for dry rot and leaks. Brake pads will likely need to be replaced and tires should be checked for age and rot. The oil and oil pump should be checked for rot on the lines, and cracks in the pan. There may also be dead or damaged wires and blown fuse causing electrical problems throughout the vehicle.
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