Mercedes-Benz B-Class: real-world fuel consumption
Fuel meter readings from 45,049 Mercedes-Benz B-Class cars reported in 2024, split by engine.
Excluding plug-in hybrids, the average is 6.2 L/100 km on the road against 5.5 officially (12% above official).
Lowest real-world consumption: Diesel · 85 kW (116 hp) at 5.8 L/100 km.
Every engine: official vs real
| Engine | cars | Official (WLTP) | Real world | Gap |
|---|---|---|---|---|
| Petrol · 100 kW (136 hp) | 4,922 | 6.2 | 7.1 | +15% |
| Petrol · 120 kW (163 hp) | 3,768 | 6.3 | 7.3 | +16% |
| Petrol · 165 kW (224 hp) | 326 | 7.2 | 8.2 | +14% |
| Petrol · 80 kW (109 hp) | 247 | 6.1 | 6.8 | +12% |
| Diesel · 85 kW (116 hp) | 8,753 | 5.2 | 5.8 | +10% |
| Diesel · 110 kW (150 hp) | 7,546 | 5.2 | 5.8 | +12% |
| Diesel · 140 kW (190 hp) | 983 | 5.3 | 5.9 | +12% |
| Hybrid · 100 kW (136 hp) | 3,839 | 6.1 | 7.1 | +16% |
| Hybrid · 120 kW (163 hp) | 3,531 | 6.2 | 7.3 | +18% |
| Hybrid · 165 kW (224 hp) | 390 | 7.3 | 8.5 | +16% |
| Hybrid · 140 kW (190 hp) | 388 | 7.2 | 8.3 | +15% |
Engines with fewer than 100 cars in the data are not shown. Hybrid includes mild hybrids (48 V) as registered by the manufacturer.
Plug-in hybrid
| Engine | cars | Official (WLTP) | Real world | Electric share | Gap |
|---|---|---|---|---|---|
| Plug-in hybrid · 118 kW (160 hp) | 7,829 | 1.1 | 4.4 | 36% | +289% |
| Plug-in hybrid · 120 kW (163 hp) | 2,502 | 0.9 | 4.8 | 34% | +403% |
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.
By reporting year
| cars | Real world | |
|---|---|---|
| 2021 | 3,814 | 5.8 |
| 2022 | 14,138 | 6.1 |
| 2023 | 22,291 | 6.1 |
| 2024 | 34,718 | 6.2 |
The same cars are reported again each year with their lifetime totals, so years are not added together.
Models: Mercedes-Benz
- Mercedes-Benz GLC-Class 7.9 L/100 km · +18%
- Mercedes-Benz C-Class 6.7 L/100 km · +21%
- Mercedes-Benz A-Class 6.5 L/100 km · +15%
- Mercedes-Benz GLA-Class 6.9 L/100 km · +15%
- Mercedes-Benz GLE-Class 10.6 L/100 km · +23%
- Mercedes-Benz E-Class 7.2 L/100 km · +17%
- Mercedes-Benz CLA-Class 6.8 L/100 km · +15%
- Mercedes-Benz GLB-Class 7.0 L/100 km · +14%
- Mercedes-Benz V-Class 9.0 L/100 km · +14%
- Mercedes-Benz S-Class 9.8 L/100 km · +23%
- Mercedes-Benz Vito 8.7 L/100 km · +18%
- Mercedes-Benz GLS-Class 12.2 L/100 km · +20%
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.