Hyundai Sonata Hybrid vs Mercedes Benz C300

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure	Hyundai Sonata Hybrid	Mercedes Benz C300
Complaints on file	1,162	2,855
Model years covered	2011–2026	2010–2016
Worst model year	2013	2010
Best model year	2024	2012
Crashes reported	67	102
Fires reported	34	33
Injuries reported	41	72
Deaths reported	0	1
Most complained-about part	Engine & Cooling	Airbags
Share of complaints involving harm	12.2%	7.3%

Hyundai Sonata Hybrid by year

145 217 172 40 84 185 123 15 8 21 71 30 23 12 15 1

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Engine & Cooling 356 30.6%

Electrical System 201 17.3%

Brakes 109 9.4%

Transmission & Drivetrain 96 8.3%

Other & Unspecified 95 8.2%

Fuel & Propulsion 61 5.2%

Steering 52 4.5%

Acceleration & Cruise Control 41 3.5%

Mercedes Benz C300 by year

593 585 333 342 120 514 368

10 11 12 13 14 15 16

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Airbags 738 25.8%

Body & Structure 290 10.2%

Engine & Cooling 262 9.2%

Suspension 257 9.0%

Electrical System 249 8.7%

Other & Unspecified 237 8.3%

Fuel & Propulsion 222 7.8%

Steering 188 6.6%