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BMW 4 Series Petrol · 135 kW (184 hp)

Official (WLTP)L/100 km
Real worldL/100 km
+19%

Measured by the on-board fuel meters of 5,422 cars · 2024 data

Real-world consumption is 19% above official. 377 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 7.5 and 8.7 L/100 km. The most economical tenth stays under 7.1; the thirstiest tenth uses more than 9.4.

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€2,047€2,433+€386
Austria 1.86 €/L€1,900€2,258+€358
Belgium 1.98 €/L€2,014€2,393+€380
Bulgaria 1.65 €/L€1,680€1,996+€317
Croatia 1.80 €/L€1,836€2,183+€346
Cyprus 1.76 €/L€1,793€2,130+€338
Czechia 1.86 €/L€1,893€2,250+€357
Denmark 2.66 €/L€2,707€3,218+€510
Estonia 1.92 €/L€1,956€2,324+€369
Finland 2.32 €/L€2,362€2,807+€445
France 2.21 €/L€2,253€2,678+€425
Germany 2.21 €/L€2,255€2,680+€425
Greece 2.20 €/L€2,240€2,662+€422
Hungary 1.75 €/L€1,786€2,123+€337
Ireland 1.98 €/L€2,020€2,400+€381
Italy 2.02 €/L€2,058€2,446+€388
Latvia 1.94 €/L€1,979€2,352+€373
Lithuania 1.93 €/L€1,961€2,330+€370
Luxembourg 1.88 €/L€1,911€2,271+€360
Malta 1.34 €/L€1,365€1,622+€257
Netherlands 2.46 €/L€2,508€2,980+€473
Poland 1.57 €/L€1,599€1,900+€301
Portugal 2.11 €/L€2,149€2,554+€405
Romania 1.90 €/L€1,933€2,298+€364
Slovakia 1.85 €/L€1,880€2,235+€354
Slovenia 1.76 €/L€1,794€2,132+€338
Spain 1.79 €/L€1,823€2,167+€344
Sweden 1.69 €/L€1,723€2,048+€325

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 BMW 4 Series engines

Similar cars from other models

Same powertrain, similar power and weight.

By country

CountrycarsReal world
Germany2,2758.1±0%
Belgium6988.0−1%
France6368.2+2%
Netherlands4807.6−6%
Spain4048.3+3%
Austria1557.9−2%
Poland1538.5+5%
Italy1358.3+3%
Denmark867.8−3%
Luxembourg748.0±0%
Ireland718.2+2%
Hungary578.3+3%
Portugal558.4+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

carsOfficial (WLTP)Real worldGap
20212386.88.4+22%
20221,4306.88.3+21%
20233,4966.88.1+19%
20245,4226.88.1+19%

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

About this data

Cars in the data5,422 (2024)
Names in the registration data420I, 420I XDRIVE, 4 SERIES, 420I CABRIO G23 B48, 420I GRAN COUPE G26 B48, 420I COUPE G22 B48
Registration years2021, 2022, 2023, 2024
Engine size1,998 cm³
Average mass in running order1,695 kg
Average distance on the meter23,887 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.