Mercedes-benz ยท EU monitoring data
Mercedes-benz C 300 D: CO2 & EU registrations
16,285 new registrations on record, fleet-average CO2 from 136.5 g/km (WLTP, 2025). Official data reported by EU member states.
By year and fuel type
Fleet averages across all Mercedes-benz C 300 D registrations of that year and fuel. CO2 is WLTP where available (NEDC shown for older years). Consumption is l/100km for combustion, Wh/km for electric.
| Year | Fuel | Registrations | CO2 WLTP | CO2 NEDC | Consumption | Mass kg | Power kW |
|---|---|---|---|---|---|---|---|
| 2025 | Diesel | 861 | 136.5 g/km | - | 5.2 l/100km | 1,849 | 195 |
| 2024 | Diesel | 1,570 | 138.9 g/km | - | 5.3 l/100km | 1,841 | 195 |
| 2023 | Diesel | 2,731 | 139 g/km | - | 5.3 l/100km | 1,821 | 194 |
| 2022 | Diesel | 3,534 | 139.1 g/km | - | 5.3 l/100km | 1,811 | 194 |
| 2021 | Diesel | 2,201 | 142.6 g/km | - | 5.4 l/100km | 1,778 | 191 |
| 2020 | Diesel | 2,834 | 154.1 g/km | 131.4 g/km | - | 1,689 | 181 |
| 2019 | Diesel | 2,253 | 159.8 g/km | 137.5 g/km | - | 1,683 | 180 |
| 2018 | Diesel | 301 | 160.2 g/km | 138.4 g/km | - | 1,688 | 180 |
Frequently Asked Questions
What are the CO2 emissions of a Mercedes-benz C 300 D?
Official EU monitoring data for 2025 registrations shows fleet-average CO2 from 136.5 g/km (WLTP) for the Mercedes-benz C 300 D, varying by fuel type and configuration; the table on this page lists every year and fuel type.
How many Mercedes-benz C 300 D are registered in the EU?
The EEA monitoring database records 16,285 new Mercedes-benz C 300 D registrations in Europe between 2010 and 2025. These are new-car registrations reported by member states, not the number currently on the road.
Source: European Environment Agency, CO2 emissions from new passenger cars (Regulation (EU) 2019/631 monitoring), CC-BY 4.0, attribution EEA / DG CLIMA. Figures are fleet averages of new registrations, not per-vehicle values. Details on About & Data Sources.