2012 Mercedes-Benz SL550 Reviews & Ratings

The Mercedes-Benz SL550 Reliability Rating is 2.0 out of 5.0, which ranks it 22nd out of 30 for luxury fullsize cars. The average annual repair cost is $1,055 which means it has poor ownership costs. The frequency and severity of repairs are both much higher than the average vehicle, which means you can expect more major repairs for the SL550.