FaultScore

Mercedes Benz SL550 problems

Owners have filed 34 complaints about the Mercedes Benz SL550 with NHTSA across model years 2011 to 2017. More of them are about the engine & cooling than anything else.

Every Mercedes Benz SL550 year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

11 13 14 15 17
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded
Year Grade Complaints Crashes Fires Median miles Most reported
2017 4 0 0 Transmission & Drivetrain
2015 2 0 0 Engine & Cooling
2014 4 0 0 Wheels
2013 20 1 0 31,000 Steering
2011 4 3 0 Engine & Cooling

What breaks on a Mercedes Benz SL550

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Engine & Cooling 7 20.6%

Worst in 2013

Steering 6 17.6%

Worst in 2013

Wheels 6 17.6%

Worst in 2013

Transmission & Drivetrain 5 14.7%

Worst in 2013

Airbags 2 5.9%

Worst in 2014

Brakes 2 5.9%

Worst in 2013

Body & Structure 2 5.9%

Worst in 2014

Acceleration & Cruise Control 2 5.9%

Worst in 2013

Electrical System 1 2.9%

Worst in 2017

Suspension 1 2.9%

Worst in 2013

Complaints filed over time

Every complaint about every Mercedes Benz SL550, by the month it reached NHTSA.

Jan 2014 peak 3 May 2025

Compare the Mercedes Benz SL550

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.