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Mercedes-Benz GLC-Class Petrol · 350 kW (476 hp)

Official (WLTP)L/100 km
Real worldL/100 km
+9%

Measured by the on-board fuel meters of 464 cars · 2024 data

Real-world consumption is 9% above official. 58 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 13.4 and 15.1 L/100 km. The most economical tenth stays under 12.6; the thirstiest tenth uses more than 16.4.

Each bar is a 0.5 L range; its height and the figure above it show what share of cars fall in that range.

L/100 km · Each car’s lifetime average from its fuel meter. Cars with less than 1,000 km are left out.

Is my consumption normal?

L/100 km

Trip computers are often a few percent optimistic. Short trips, winter, motorways and towing raise consumption.

What it costs to fuel

CountryAt officialAt realDifference
EU weighted average 2.01 €/L€3,929€4,278+€350
Austria 1.86 €/L€3,645€3,970+€325
Belgium 1.98 €/L€3,864€4,208+€344
Bulgaria 1.65 €/L€3,223€3,510+€287
Croatia 1.80 €/L€3,524€3,838+€314
Cyprus 1.76 €/L€3,440€3,746+€306
Czechia 1.86 €/L€3,633€3,957+€323
Denmark 2.66 €/L€5,195€5,658+€462
Estonia 1.92 €/L€3,753€4,087+€334
Finland 2.32 €/L€4,532€4,936+€404
France 2.21 €/L€4,323€4,708+€385
Germany 2.21 €/L€4,327€4,712+€385
Greece 2.20 €/L€4,298€4,681+€383
Hungary 1.75 €/L€3,428€3,733+€305
Ireland 1.98 €/L€3,876€4,221+€345
Italy 2.02 €/L€3,950€4,302+€352
Latvia 1.94 €/L€3,798€4,136+€338
Lithuania 1.93 €/L€3,762€4,097+€335
Luxembourg 1.88 €/L€3,667€3,993+€326
Malta 1.34 €/L€2,619€2,852+€233
Netherlands 2.46 €/L€4,812€5,240+€428
Poland 1.57 €/L€3,069€3,342+€273
Portugal 2.11 €/L€4,124€4,491+€367
Romania 1.90 €/L€3,710€4,040+€330
Slovakia 1.85 €/L€3,608€3,929+€321
Slovenia 1.76 €/L€3,442€3,748+€306
Spain 1.79 €/L€3,499€3,810+€311
Sweden 1.69 €/L€3,307€3,601+€294

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

Similar cars from other models

Same powertrain, similar power and weight.

By reporting year

carsOfficial (WLTP)Real worldGap
202229913.114.4+11%
202331513.114.3+10%
202446413.014.2+9%

The same cars are reported again each year with their lifetime totals, so years are not added together.

About this data

Cars in the data464 (2024)
Names in the registration dataGLC 63 4MATIC
Registration years2021, 2022, 2023
Engine size3,982 cm³
Average mass in running order2,017 kg
Average distance on the meter40,664 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.