Worst years for a Mercedes Benz GLC 300
Owners have filed 609 complaints about the Mercedes Benz GLC 300 with NHTSA across model years 2018 to 2025. More of them are about the engine & cooling than anything else.
Avoid
2018 Mercedes Benz GLC 300124 complaints — the highest FaultScore of any year, mostly engine & cooling.
Cleanest on record
2024 Mercedes Benz GLC 30033 complaints — the lowest FaultScore of the graded years.
Every Mercedes Benz GLC 300 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.
| Year | Grade | Complaints | Crashes | Fires | Median miles | Most reported |
|---|---|---|---|---|---|---|
| 2025 | D | 32 | 9 | 0 | 10,903 | Electrical System |
| 2024 | C | 33 | 2 | 0 | — | Engine & Cooling |
| 2023 | D | 99 | 4 | 0 | 4,000 | Electrical System |
| 2022 | D | 85 | 10 | 4 | 10,000 | Fuel & Propulsion |
| 2021 | C | 84 | 1 | 1 | 19,369 | Engine & Cooling |
| 2020 | D | 88 | 4 | 0 | 21,250 | Engine & Cooling |
| 2019 | D | 64 | 4 | 5 | 41,500 | Electrical System |
| 2018 | D | 124 | 8 | 3 | 9,600 | Engine & Cooling |
What breaks on a Mercedes Benz GLC 300
Across every model year on file. Follow a row for that part's complaints and the year it was worst.
Worst in 2018
Worst in 2019
Worst in 2022
Worst in 2018
Worst in 2018
Exactly what failed on a Mercedes Benz GLC 300
The named sub-assemblies behind those complaints, across every model year.
Complaints filed over time
Every complaint about every Mercedes Benz GLC 300, by the month it reached NHTSA.
Mercedes Benz GLC 300 problems by state
Where owners filed from. Heavier states are usually just bigger markets, but a part that fails in heat or salt shows up here first.
Compare the Mercedes Benz GLC 300
Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.