Power and efficiency.
Transport Magazine

Power and efficiency.

What you need to know about the new OM 471.

The developers have done a great job with the third generation of the OM 471: Significantly reduced fuel consumption goes hand in hand with even more driving dynamics.

As an Italian proverb goes: Good is good as long as there is nothing better. A prime example of this is the third generation of the OM 471 for Actros and Arocs, with which Mercedes‑Benz is taking the main engine series to a new level. Up to 4% more economical, more dynamic, cleaner, with tailor‑made turbochargers and a new automatic gearshift – “Transport” summarises the most important innovations.

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Reduced fuel consumption

In the new engine, optimisations in the piston geometry, injection nozzle and other parameters increase the peak ignition pressure to 250 bar. The result is – together with other measures – a reduction in consumption of up to 4 %.

New turbocharger

The consumption-optimised variant is predestined for long‑haul transport and engines with an output of up to 350 kW. The second, performance‑optimised variant is available for engines up to 390 kW – designed for heavy-duty and construction vehicles, where the high engine braking power also pays off. These engines also benefit from the fuel‑saving measures within the engine of the series.

Lower emissions

The completely redesigned exhaust aftertreatment optimises the nitrogen oxide balance with a whole range of measures. The lower consumption is also directly reflected in lower emissions. The new OM 471 is therefore fit for the strictest emission standards – for example, EURO VIe.

More dynamic handling

The new PowerShift Advanced shifts more precisely and therefore more comfortably. Faster gear changes reduce torque interruption. The effect: softer moving off, faster acceleration and less loss of speed when downshifting on hills.

New oil management

A newly developed engine oil pressure valve controls the oil pressure according to requirement. Precisely adapted to this: a new engine oil with a lower viscosity at the same oil‑change intervals. This reduces friction losses in the engine.

Top torque

More torque: From seventh gear, 200 Nm more are now available in the “A Standard” and “A Power” driving programs – the 330 kW and 350 kW engines and the G281 gearbox in the Actros benefit from this. “Power at the push of a button” in other words, valuable when driving onto a motorway or overtaking, for example.

Further information on the OM 471 can be found here:

Photos: Daimler Truck AG