Mercedes-Benz C-Class: real-world fuel consumption
Fuel meter readings from 160,909 Mercedes-Benz C-Class cars reported in 2024, split by engine.
Excluding plug-in hybrids, the average is 6.7 L/100 km on the road against 5.5 officially (21% above official).
Lowest real-world consumption: Diesel hybrid · 120 kW (163 hp) at 5.6 L/100 km.
Every engine: official vs real
| Engine | cars | Official (WLTP) | Real world | Gap |
|---|---|---|---|---|
| Petrol · 115 kW (156 hp) | 1,840 | 7.5 | 8.4 | +11% |
| Petrol · 375 kW (510 hp) | 1,214 | 11.1 | 14.9 | +35% |
| Petrol · 287 kW (390 hp) | 999 | 10.2 | 11.3 | +11% |
| Petrol · 350 kW (476 hp) | 270 | 11.1 | 14.2 | +28% |
| Petrol · 245 kW (333 hp) | 256 | 9.3 | 10.6 | +14% |
| Diesel · 143 kW (194 hp) | 4,911 | 5.5 | 6.4 | +17% |
| Diesel · 118 kW (160 hp) | 1,212 | 5.2 | 5.9 | +14% |
| Diesel · 147 kW (200 hp) | 767 | 5.2 | 6.4 | +23% |
| Diesel · 180 kW (245 hp) | 673 | 5.9 | 7.1 | +19% |
| Diesel · 90 kW (122 hp) | 661 | 5.1 | 5.7 | +12% |
| Hybrid · 150 kW (204 hp) | 13,106 | 6.7 | 8.3 | +23% |
| Hybrid · 125 kW (170 hp) | 12,494 | 6.6 | 8.0 | +22% |
| Hybrid · 190 kW (258 hp) | 6,317 | 7.3 | 9.0 | +24% |
| Hybrid · 300 kW (408 hp) | 2,524 | 9.0 | 11.8 | +30% |
| Hybrid · 135 kW (184 hp) | 2,328 | 7.6 | 8.7 | +15% |
| Diesel hybrid · 147 kW (200 hp) | 43,781 | 4.9 | 6.0 | +22% |
| Diesel hybrid · 120 kW (163 hp) | 17,024 | 4.8 | 5.6 | +18% |
| Diesel hybrid · 195 kW (265 hp) | 8,986 | 5.3 | 6.8 | +28% |
Engines with fewer than 100 cars in the data are not shown. Hybrid includes mild hybrids (48 V) as registered by the manufacturer.
Plug-in hybrid
| Engine | cars | Official (WLTP) | Real world | Electric share | Gap |
|---|---|---|---|---|---|
| Plug-in hybrid · 150 kW (204 hp) | 30,387 | 0.6 | 5.3 | 35% | +793% |
| Plug-in hybrid · 155 kW (211 hp) | 1,298 | 1.7 | 6.5 | 22% | +295% |
| Plug-in hybrid · 350 kW (476 hp) | 837 | 6.9 | 13.8 | 10% | +100% |
| Plug-in hybrid · 185 kW (252 hp) | 385 | 0.6 | 6.3 | 32% | +891% |
| Diesel plug-in hybrid · 145 kW (197 hp) | 4,552 | 0.5 | 4.6 | 27% | +835% |
| Diesel plug-in hybrid · 143 kW (194 hp) | 4,018 | 1.3 | 5.5 | 18% | +324% |
The official WLTP figure for plug-in hybrids assumes a share of electric driving based on range. When cars are charged less often than assumed, real consumption is far higher.
By reporting year
| cars | Real world | |
|---|---|---|
| 2021 | 5,359 | 8.4 |
| 2022 | 39,612 | 6.9 |
| 2023 | 71,440 | 6.8 |
| 2024 | 119,432 | 6.7 |
The same cars are reported again each year with their lifetime totals, so years are not added together.
Models: Mercedes-Benz
- Mercedes-Benz GLC-Class 7.9 L/100 km · +18%
- Mercedes-Benz A-Class 6.5 L/100 km · +15%
- Mercedes-Benz GLA-Class 6.9 L/100 km · +15%
- Mercedes-Benz GLE-Class 10.6 L/100 km · +23%
- Mercedes-Benz E-Class 7.2 L/100 km · +17%
- Mercedes-Benz CLA-Class 6.8 L/100 km · +15%
- Mercedes-Benz GLB-Class 7.0 L/100 km · +14%
- Mercedes-Benz B-Class 6.2 L/100 km · +12%
- Mercedes-Benz V-Class 9.0 L/100 km · +14%
- Mercedes-Benz S-Class 9.8 L/100 km · +23%
- Mercedes-Benz Vito 8.7 L/100 km · +18%
- Mercedes-Benz GLS-Class 12.2 L/100 km · +20%
Source: European Environment Agency, real-world CO₂ emissions from cars, 2024 data (CC BY 4.0), based on on-board fuel consumption meters (Regulation (EU) 2019/631, Article 12). Grouping by model and engine, averages and percentiles by RealFuelConsumption. Not affiliated with the EEA or the manufacturer.