Mercedes-Benz C-Class Petrol · 245 kW (333 hp)
Measured by the on-board fuel meters of 256 cars · 2024 data
Real-world consumption is 14% above official. 202 of the other 618 petrol cars in the data come closer to their official figure.
How much drivers actually use
Half of the cars use between 10.0 and 11.5 L/100 km. The most economical tenth stays under 9.4; the thirstiest tenth uses more than 12.4.
Each bar is a 0.5 L range; its height and the figure above it show what share of cars fall in that range.
Is my consumption normal?
What it costs to fuel
| Country | At official | At real | Difference |
|---|---|---|---|
| EU weighted average 2.01 €/L | €2,795 | €3,193 | +€398 |
| Austria 1.86 €/L | €2,593 | €2,963 | +€369 |
| Belgium 1.98 €/L | €2,749 | €3,140 | +€391 |
| Bulgaria 1.65 €/L | €2,293 | €2,619 | +€327 |
| Croatia 1.80 €/L | €2,507 | €2,864 | +€357 |
| Cyprus 1.76 €/L | €2,447 | €2,796 | +€348 |
| Czechia 1.86 €/L | €2,585 | €2,953 | +€368 |
| Denmark 2.66 €/L | €3,696 | €4,222 | +€526 |
| Estonia 1.92 €/L | €2,670 | €3,050 | +€380 |
| Finland 2.32 €/L | €3,225 | €3,684 | +€459 |
| France 2.21 €/L | €3,076 | €3,514 | +€438 |
| Germany 2.21 €/L | €3,079 | €3,517 | +€438 |
| Greece 2.20 €/L | €3,058 | €3,493 | +€435 |
| Hungary 1.75 €/L | €2,439 | €2,786 | +€347 |
| Ireland 1.98 €/L | €2,757 | €3,150 | +€393 |
| Italy 2.02 €/L | €2,810 | €3,210 | +€400 |
| Latvia 1.94 €/L | €2,702 | €3,086 | +€385 |
| Lithuania 1.93 €/L | €2,677 | €3,058 | +€381 |
| Luxembourg 1.88 €/L | €2,609 | €2,980 | +€371 |
| Malta 1.34 €/L | €1,863 | €2,129 | +€265 |
| Netherlands 2.46 €/L | €3,423 | €3,911 | +€487 |
| Poland 1.57 €/L | €2,183 | €2,494 | +€311 |
| Portugal 2.11 €/L | €2,934 | €3,352 | +€418 |
| Romania 1.90 €/L | €2,639 | €3,015 | +€376 |
| Slovakia 1.85 €/L | €2,567 | €2,932 | +€366 |
| Slovenia 1.76 €/L | €2,449 | €2,797 | +€349 |
| Spain 1.79 €/L | €2,489 | €2,843 | +€354 |
| Sweden 1.69 €/L | €2,353 | €2,688 | +€335 |
Fuel prices including taxes from the European Commission Weekly Oil Bulletin of 12 October 2026. Cost = consumption × price × distance. The default distance is an example; change it to yours.
Other Mercedes-Benz C-Class engines
Similar cars from other models
Same powertrain, similar power and weight.
| Model and engine | cars | Official (WLTP) | Real world | Gap |
|---|---|---|---|---|
| Cupra Formentor Petrol · 228 kW (310 hp) | 9,812 | 8.5 | 10.2 | +21% |
| Ford Focus Petrol · 206 kW (280 hp) | 7,270 | 8.0 | 9.8 | +23% |
| Cupra Ateca Petrol · 221 kW (300 hp) | 7,022 | 9.0 | 10.3 | +15% |
| Porsche Macan Petrol · 280 kW (381 hp) | 5,375 | 11.0 | 12.2 | +10% |
| Volkswagen Golf Petrol · 235 kW (320 hp) | 5,312 | 7.9 | 10.5 | +33% |
| Volkswagen Arteon Petrol · 235 kW (320 hp) | 3,773 | 9.1 | 10.6 | +16% |
| Audi S3 Petrol · 228 kW (310 hp) | 3,740 | 7.9 | 10.0 | +26% |
| Volkswagen Tiguan Petrol · 235 kW (320 hp) | 3,347 | 9.9 | 10.8 | +9% |
By reporting year
| cars | Official (WLTP) | Real world | Gap | |
|---|---|---|---|---|
| 2023 | 241 | 9.3 | 10.6 | +14% |
| 2024 | 256 | 9.3 | 10.6 | +14% |
The same cars are reported again each year with their lifetime totals, so years are not added together.
About this data
| Cars in the data | 256 (2024) |
|---|---|
| Names in the registration data | C 400 4MATIC |
| Registration years | 2021, 2022, 2023, 2024 |
| Engine size | 2,996 cm³ |
| Average mass in running order | 1,770 kg |
| Average distance on the meter | 31,174 km |
Hybrid includes mild hybrids (48 V) as registered by the manufacturer.
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.