503 problems have been reported for the 2015 Mercedes Benz C300. The following chart shows the 21 most common problems for 2015 Mercedes Benz C300. The number one most common problem is related to the vehicle's engine and engine cooling with 128 problems. The second most common problem is related to the vehicle's equipment (68 problems).
The following chart shows the number of problems reported during each of the service years since the debut of the 2015 Mercedes Benz C300 in 2015.
| Service Year | Number of Problems |
|---|---|
| 2026 | |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 |
When making the decision between buying a new or used Mercedes Benz C300, the following table can be used to compare the 2015 Mercedes Benz C300 with the Mercedes Benz C300 from other model years. Note that the number of problems reported for the 2015 C300 is 503 while the average number of problems reported for the 17 model years of the Mercedes Benz C300 is 297.