Mercedes-Benz C-Class Diesel plug-in hybrid · 145 kW (197 hp)
Measured by the on-board fuel meters of 4,552 cars · 2024 data
Real-world consumption is 835% above official.
How much is driven on electricity
Owners drive 27% of their kilometres in electric mode with the engine off.
A further 7% is driven with a charged battery but the engine running.
They charge on average 6.5 kWh from the grid per 100 km driven.
Official electric range: 108 km.
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.
How much drivers actually use
Half of the cars use between 3.5 and 5.5 L/100 km. The most economical tenth stays under 2.5; the thirstiest tenth uses more than 6.2.
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 | Charging | Difference |
|---|---|---|---|---|
| EU weighted average 2.14 €/L | €157 | €1,464 | +€274 | +€1,307 |
| Austria 2.16 €/L | €159 | €1,482 | +€316 | +€1,323 |
| Belgium 2.33 €/L | €172 | €1,601 | +€346 | +€1,429 |
| Bulgaria 1.87 €/L | €138 | €1,285 | +€130 | +€1,147 |
| Croatia 1.95 €/L | €144 | €1,339 | +€176 | +€1,196 |
| Cyprus 2.02 €/L | €149 | €1,385 | +€260 | +€1,237 |
| Czechia 1.92 €/L | €141 | €1,317 | +€279 | +€1,176 |
| Denmark 2.50 €/L | €184 | €1,715 | +€230 | +€1,531 |
| Estonia 2.01 €/L | €148 | €1,380 | +€205 | +€1,232 |
| Finland 2.54 €/L | €186 | €1,738 | +€261 | +€1,552 |
| France 2.33 €/L | €171 | €1,596 | +€241 | +€1,425 |
| Germany 2.27 €/L | €167 | €1,556 | +€351 | +€1,389 |
| Greece 2.12 €/L | €156 | €1,452 | +€233 | +€1,296 |
| Hungary 1.94 €/L | €143 | €1,331 | +€110 | +€1,189 |
| Ireland 2.16 €/L | €159 | €1,483 | +€375 | +€1,324 |
| Italy 2.24 €/L | €165 | €1,536 | +€304 | +€1,371 |
| Latvia 2.07 €/L | €152 | €1,420 | +€234 | +€1,268 |
| Lithuania 2.21 €/L | €162 | €1,512 | +€209 | +€1,349 |
| Luxembourg 2.04 €/L | €150 | €1,402 | +€196 | +€1,252 |
| Malta 1.21 €/L | €89 | €829 | +€123 | +€741 |
| Netherlands 2.48 €/L | €182 | €1,701 | +€236 | +€1,519 |
| Poland 1.79 €/L | €132 | €1,230 | +€291 | +€1,099 |
| Portugal 2.15 €/L | €158 | €1,472 | +€229 | +€1,315 |
| Romania 2.04 €/L | €150 | €1,399 | +€275 | +€1,249 |
| Slovakia 1.92 €/L | €141 | €1,315 | +€192 | +€1,174 |
| Slovenia 1.92 €/L | €141 | €1,315 | +€205 | +€1,174 |
| Spain 1.89 €/L | €139 | €1,295 | +€243 | +€1,156 |
| Sweden 2.05 €/L | €151 | €1,405 | +€297 | +€1,255 |
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.
Official and real columns are fuel only. The charging column adds the electricity these cars draw from the grid on average, at household prices (Eurostat).
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 | Electric share | Gap |
|---|---|---|---|---|---|
| Mercedes-Benz GLC-Class Diesel plug-in hybrid · 143 kW (194 hp) | 32,211 | 1.9 | 6.3 | 17% | +229% |
| Mercedes-Benz GLC-Class Diesel plug-in hybrid · 145 kW (197 hp) | 19,607 | 0.6 | 4.8 | 34% | +784% |
| Mercedes-Benz E-Class Diesel plug-in hybrid · 143 kW (194 hp) | 16,626 | 1.4 | 5.8 | 15% | +317% |
| Mercedes-Benz E-Class Diesel plug-in hybrid · 145 kW (197 hp) | 6,404 | 0.6 | 4.8 | 29% | +728% |
By country
| Country | cars | Real world | |
|---|---|---|---|
| Germany | 2,014 | 4.9 | +6% |
| Portugal | 547 | 4.5 | −3% |
| Sweden | 539 | 4.0 | −12% |
| France | 491 | 4.4 | −3% |
| Belgium | 463 | 4.5 | −1% |
| Italy | 183 | 4.8 | +4% |
| Spain | 131 | 4.3 | −6% |
| Austria | 71 | 4.7 | +4% |
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 | |
|---|---|---|---|---|
| 2023 | 375 | 0.5 | 4.5 | +827% |
| 2024 | 4,552 | 0.5 | 4.6 | +833% |
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 | 4,552 (2024) |
|---|---|
| Names in the registration data | C 300 DE, C 300 DE 4MATIC |
| Registration years | 2022, 2023, 2024 |
| Engine size | 1,993 cm³ |
| Average mass in running order | 2,206 kg |
| Average distance on the meter | 20,118 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.