Mercedes-Benz GLC-Class Petrol · 375 kW (510 hp)
Measured by the on-board fuel meters of 1,410 cars · 2024 data
Real-world consumption is 12% above official. 124 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 13.5 and 15.8 L/100 km. The most economical tenth stays under 12.8; the thirstiest tenth uses more than 16.9.
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 | €3,938 | €4,399 | +€461 |
| Austria 1.86 €/L | €3,654 | €4,082 | +€428 |
| Belgium 1.98 €/L | €3,873 | €4,327 | +€454 |
| Bulgaria 1.65 €/L | €3,230 | €3,609 | +€378 |
| Croatia 1.80 €/L | €3,532 | €3,946 | +€414 |
| Cyprus 1.76 €/L | €3,448 | €3,852 | +€404 |
| Czechia 1.86 €/L | €3,642 | €4,068 | +€427 |
| Denmark 2.66 €/L | €5,207 | €5,817 | +€610 |
| Estonia 1.92 €/L | €3,761 | €4,202 | +€441 |
| Finland 2.32 €/L | €4,543 | €5,075 | +€532 |
| France 2.21 €/L | €4,333 | €4,841 | +€508 |
| Germany 2.21 €/L | €4,337 | €4,845 | +€508 |
| Greece 2.20 €/L | €4,308 | €4,813 | +€505 |
| Hungary 1.75 €/L | €3,436 | €3,839 | +€403 |
| Ireland 1.98 €/L | €3,885 | €4,340 | +€455 |
| Italy 2.02 €/L | €3,959 | €4,423 | +€464 |
| Latvia 1.94 €/L | €3,806 | €4,252 | +€446 |
| Lithuania 1.93 €/L | €3,771 | €4,213 | +€442 |
| Luxembourg 1.88 €/L | €3,675 | €4,106 | +€431 |
| Malta 1.34 €/L | €2,625 | €2,933 | +€308 |
| Netherlands 2.46 €/L | €4,823 | €5,388 | +€565 |
| Poland 1.57 €/L | €3,076 | €3,436 | +€360 |
| Portugal 2.11 €/L | €4,133 | €4,618 | +€484 |
| Romania 1.90 €/L | €3,718 | €4,154 | +€436 |
| Slovakia 1.85 €/L | €3,616 | €4,040 | +€424 |
| Slovenia 1.76 €/L | €3,450 | €3,854 | +€404 |
| Spain 1.79 €/L | €3,507 | €3,917 | +€411 |
| Sweden 1.69 €/L | €3,315 | €3,703 | +€388 |
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 GLC-Class engines
| Engine | cars | Official (WLTP) | Real world | Gap |
|---|---|---|---|---|
| Petrol · 287 kW (390 hp) | 2,218 | 11.0 | 12.1 | +10% |
| Petrol · 375 kW (510 hp) | 1,410 | 13.1 | 14.6 | +12% |
| Petrol · 350 kW (476 hp) | 464 | 13.0 | 14.2 | +9% |
| Diesel · 143 kW (194 hp) | 17,945 | 6.3 | 7.5 | +18% |
| Diesel · 120 kW (163 hp) | 6,992 | 6.2 | 7.2 | +16% |
| Diesel · 180 kW (245 hp) | 4,000 | 6.8 | 8.0 | +18% |
| Diesel · 243 kW (330 hp) | 2,440 | 7.4 | 8.7 | +17% |
| Hybrid · 150 kW (204 hp) | 13,064 | 7.4 | 8.9 | +20% |
| Hybrid · 145 kW (197 hp) | 7,258 | 8.4 | 9.8 | +16% |
| Hybrid · 190 kW (258 hp) | 6,506 | 7.9 | 9.7 | +23% |
| Hybrid · 310 kW (421 hp) | 653 | 10.5 | 12.6 | +21% |
| Diesel hybrid · 145 kW (197 hp) | 37,418 | 5.4 | 6.5 | +22% |
| Diesel hybrid · 198 kW (269 hp) | 5,167 | 5.8 | 7.3 | +27% |
| Diesel hybrid · 270 kW (367 hp) | 797 | 6.6 | 8.1 | +22% |
| Plug-in hybrid · 150 kW (204 hp) | 21,999 | 0.5 | 5.3 | +894% |
| Plug-in hybrid · 155 kW (211 hp) | 16,900 | 2.3 | 7.5 | +223% |
| Plug-in hybrid · 185 kW (252 hp) | 5,764 | 0.6 | 5.9 | +976% |
| Plug-in hybrid · 350 kW (476 hp) | 569 | 7.5 | 13.5 | +80% |
| Diesel plug-in hybrid · 143 kW (194 hp) | 32,211 | 1.9 | 6.3 | +229% |
| Diesel plug-in hybrid · 145 kW (197 hp) | 19,607 | 0.6 | 4.8 | +784% |
Similar cars from other models
Same powertrain, similar power and weight.
| Model and engine | cars | Official (WLTP) | Real world | Gap |
|---|---|---|---|---|
| BMW M3 Petrol · 375 kW (510 hp) | 5,050 | 10.2 | 13.1 | +29% |
| Porsche Macan Petrol · 324 kW (441 hp) | 4,234 | 11.3 | 12.6 | +12% |
| Ford Mustang Petrol · 330 kW (449 hp) | 4,158 | 11.5 | 13.6 | +18% |
| BMW M4 Petrol · 375 kW (510 hp) | 3,511 | 10.1 | 13.2 | +32% |
| Mercedes-Benz SL-Class Petrol · 430 kW (585 hp) | 3,494 | 13.0 | 17.2 | +32% |
| BMW M2 Petrol · 338 kW (460 hp) | 3,079 | 9.8 | 13.1 | +34% |
| Ford Mustang Petrol · 338 kW (460 hp) | 1,958 | 11.9 | 14.5 | +22% |
| Porsche Cayenne Petrol · 338 kW (460 hp) | 1,709 | 13.2 | 14.2 | +7% |
By reporting year
| cars | Official (WLTP) | Real world | Gap | |
|---|---|---|---|---|
| 2021 | 136 | 13.1 | 15.9 | +22% |
| 2022 | 846 | 13.1 | 15.2 | +16% |
| 2023 | 1,010 | 13.1 | 14.8 | +13% |
| 2024 | 1,410 | 13.1 | 14.6 | +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 | 1,410 (2024) |
|---|---|
| Names in the registration data | GLC 63 S 4MATIC |
| Registration years | 2021, 2022, 2023 |
| Engine size | 3,982 cm³ |
| Average mass in running order | 2,027 kg |
| Average distance on the meter | 37,381 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.