The average asking price for a used 2015 Mercedes-Benz SL 550 is $49,000, with 23,500 miles on average, across 1 cars for sale at U.S. dealers as of Nov 10, 2026.
The 2015 asks $49,000 on average with 23,500 miles; the 2014 asks $30,091 with 55,375 miles, and the 2016 asks $42,799 with 38,311 miles.
NHTSA lists 3 safety recall campaigns that cover the 2015 Mercedes-Benz SL 550. Repairs are free at a dealer of the make; check a car's VIN with NHTSA before you buy to see whether its recalls were fixed.
Used and certified cars for sale at US dealers, each car counted once. Days listed are the dealer’s own days on market where they publish it. Price moves compare the same cars at both ends of the window.