As variable as a van, as sturdy as a light-duty truck. The Vario is a classic in Mercedes-Benz’s van range. A classic that is nevertheless at the cutting edge of important issues such as fuel consumption and emissions - thanks to the BlueEFFICIENCY technology, BlueTEC. With it, Vario meets the Euro V emissions standard whilst at the same time having improved the engine’s performance characteristics and fuel consumption.
BlueTEC is the pioneering SCR diesel technology from Mercedes-Benz: a cost-effective and ecologically convincing solution which helps your Vario to comply with the Euro 5 emissions standard. The SCR (Selective Catalytic Reduction) exhaust gas treatment process is the only technology capable of ensuring the necessary reduction in exhaust gas emissions while optimising engine output and fuel consumption at the same time.
The BlueTEC system includes modified engines with a higher peak pressure, which improves combustion and reduces the number of particulates. Further components of the system include a catalytic converter and an AdBlue® tank. This additive is simply filled up from a pump and carried in a separate tank on board. From here it is fed via a metering unit into the exhaust gas from the engine and is converted by the heat into ammonia, which is required for the chemical reaction in the catalytic converter. The catalytic reaction here converts the nitrogen oxides into ecologically harmless substances – nitrogen and water.