Mercedes-Benz C-Class Diesel · 90 kW (122 hp)
Measured by the on-board fuel meters of 661 cars · 2024 data
Real-world consumption is 12% above official. 50 of the other 334 diesel cars in the data come closer to their official figure.
How much drivers actually use
Half of the cars use between 5.5 and 6.0 L/100 km. The most economical tenth stays under 5.2; the thirstiest tenth uses more than 6.3.
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 2.14 €/L | €1,644 | €1,833 | +€189 |
| Austria 2.16 €/L | €1,664 | €1,855 | +€191 |
| Belgium 2.33 €/L | €1,797 | €2,003 | +€207 |
| Bulgaria 1.87 €/L | €1,442 | €1,608 | +€166 |
| Croatia 1.95 €/L | €1,504 | €1,677 | +€173 |
| Cyprus 2.02 €/L | €1,555 | €1,734 | +€179 |
| Czechia 1.92 €/L | €1,478 | €1,648 | +€170 |
| Denmark 2.50 €/L | €1,925 | €2,147 | +€221 |
| Estonia 2.01 €/L | €1,549 | €1,727 | +€178 |
| Finland 2.54 €/L | €1,951 | €2,176 | +€224 |
| France 2.33 €/L | €1,791 | €1,997 | +€206 |
| Germany 2.27 €/L | €1,747 | €1,948 | +€201 |
| Greece 2.12 €/L | €1,630 | €1,817 | +€187 |
| Hungary 1.94 €/L | €1,494 | €1,666 | +€172 |
| Ireland 2.16 €/L | €1,665 | €1,857 | +€192 |
| Italy 2.24 €/L | €1,724 | €1,923 | +€198 |
| Latvia 2.07 €/L | €1,594 | €1,778 | +€183 |
| Lithuania 2.21 €/L | €1,697 | €1,892 | +€195 |
| Luxembourg 2.04 €/L | €1,574 | €1,755 | +€181 |
| Malta 1.21 €/L | €931 | €1,038 | +€107 |
| Netherlands 2.48 €/L | €1,910 | €2,130 | +€220 |
| Poland 1.79 €/L | €1,381 | €1,540 | +€159 |
| Portugal 2.15 €/L | €1,653 | €1,843 | +€190 |
| Romania 2.04 €/L | €1,571 | €1,751 | +€181 |
| Slovakia 1.92 €/L | €1,477 | €1,647 | +€170 |
| Slovenia 1.92 €/L | €1,476 | €1,646 | +€170 |
| Spain 1.89 €/L | €1,454 | €1,621 | +€167 |
| Sweden 2.05 €/L | €1,577 | €1,759 | +€181 |
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 |
|---|---|---|---|---|
| Dacia Duster Diesel · 84 kW (114 hp) | 54,167 | 5.3 | 6.2 | +16% |
| Dacia Duster Diesel · 85 kW (116 hp) | 47,506 | 4.8 | 5.5 | +15% |
| Volkswagen Golf Diesel · 85 kW (116 hp) | 45,623 | 4.4 | 5.2 | +18% |
| Renault Megane Diesel · 85 kW (116 hp) | 42,904 | 4.6 | 5.4 | +17% |
| Mercedes-Benz A-Class Diesel · 85 kW (116 hp) | 31,767 | 5.1 | 5.6 | +10% |
| Ford Focus Diesel · 88 kW (120 hp) | 21,642 | 4.3 | 5.3 | +23% |
| Ford Kuga Diesel · 88 kW (120 hp) | 21,432 | 5.0 | 5.9 | +16% |
| Peugeot 3008 Diesel · 96 kW (131 hp) | 18,772 | 5.2 | 5.9 | +14% |
By country
| Country | cars | Real world | |
|---|---|---|---|
| Belgium | 227 | 5.6 | −2% |
| Germany | 173 | 5.8 | +1% |
| France | 129 | 5.8 | +1% |
| Austria | 88 | 5.7 | ±0% |
Countries with at least 50 cars of this engine. Differences reflect climate, roads and driving habits as well as the car.
By reporting year
| cars | Official (WLTP) | Real world | Gap | |
|---|---|---|---|---|
| 2022 | 1,087 | 5.1 | 5.7 | +11% |
| 2023 | 699 | 5.1 | 5.7 | +12% |
| 2024 | 661 | 5.1 | 5.7 | +12% |
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 | 661 (2024) |
|---|---|
| Names in the registration data | C 180 D |
| Registration years | 2021, 2022 |
| Engine size | 1,597 cm³ |
| Average mass in running order | 1,592 kg |
| Average distance on the meter | 78,046 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.