median; 35.3–36.1 across 5 declared configurations
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) and Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit side by side
Specification
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024)
Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2021–2024Registeredcentral 90% of records
2019–2023Registeredcentral 90% of records
Engine power
310 kWDeclared
310 kWDeclared
Engine displacement
12.8 litresDeclared
12.8 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
EURO VI, EURO VI D, EURO VI ERegistered
EURO VI DRegistered
Gross vehicle weight
18,000–20,500 kgRegisteredmedian 19,000 kg, across 29 type-approval versions and 470 records without one
18,000 kgRegistered
Kerb weight
7,464–8,392 kgRegisteredmedian 7,870 kg, over 782 registrations
7,529 kgRegistered
Wheelbase
3,550–4,000 mmRegisteredmedian 3,700 mm, over 782 registrations
3,900 mmRegistered
Overall length
5,850–6,460 mmRegisteredmedian 6,160 mm, over 782 registrations
6,200 mmRegistered
Overall height
3,620–4,000 mmRegisteredmedian 3,920 mm, over 757 registrations
Not recorded
Declared fuel, long haul
30.1 l/100 km Declaredmedian; 26.9–38.5 l/100 km across 370 declared configurations
35.3 l/100 km Declaredmedian; 35.3–36.1 l/100 km across 5 declared configurations
CO₂ per tonne-km
40.77 g Declaredmedian; 36.42–52.1 g
47.81 g Declaredmedian; 47.81–48.93 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) declared 5.2 l/100 km less (17.2%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 6,240 litres a year, or £8,736. A gap this size is outside the 10% tolerance of declared figures.
