Question 1

Is the Mercedes-Benz C 300 reliable?

Accepted Answer

The Mercedes-Benz C 300 has 374 total NHTSA complaints across 8 model years. The most reliable years are 2025 (7 complaints), 2021 (15 complaints), 2024 (18 complaints). Years to avoid: 2018 (128 complaints), 2019 (85 complaints).

Question 2

What years of the Mercedes-Benz C 300 should I avoid?

Accepted Answer

Avoid the 2018, 2019 Mercedes-Benz C 300. The 2018 model has the most complaints (128) with the top issue being ENGINE.

Question 3

What is the best year for the Mercedes-Benz C 300?

Accepted Answer

The best years for the Mercedes-Benz C 300 are 2025 (7 complaints), 2021 (15 complaints), 2024 (18 complaints). These years have the fewest reported issues to NHTSA.

Year	Complaints	Top Issue	Verdict
2025	7	After driving the 2025 c300 sedan and leaving it p...	Excellent Reliability
2024	18	Within the first week of ownership (delivery on 1/...	Above Average
2023	36	The contact owns a 2023 Mercedes-Benz C300. The co...	Above Average
2022	39	There have been two complete failures of the contr...	Average
2021	15	Piston Connecting Rod broke and left the engine ma...	Excellent Reliability
2020	46	MY 2016 C300 (IN-LINE 4 TURBO, "PETROL" WITH 241HP...	Average
2019	85	TL* THE CONTACT OWNS A 2019 MERCEDES-BENZ C300W. T...	Below Average
2018	128	TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WH...	Avoid This Year

Mercedes-Benz C 300 — All Years

Mercedes-Benz C 300 — NHTSA Complaints by Year

Best Years to Buy

Years to Avoid