2017 Mercedes-Benz S550 Reviews & Ratings

The Mercedes-Benz S550 Reliability Rating is 2.0 out of 5.0, which ranks it 25th out of 30 for luxury fullsize cars. The average annual repair cost is $1,249 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 S550.