The two 4-cylinder diesel engines with Common-Rail direct injection and turbocharging are the basis for the economical, sustainable operation of the Vito Tourer. The 1,598 cm³ engine is available in two and the 2,143 cm³ engine in three rated outputs. Depending on the engine variant, there is a choice among front-wheel, rear-wheel, and all-wheel drive systems. The 120-kW variant equipped with the optional BlueEFFICIENCY package can achieve a fuel consumption level as low as 5.8 litres per 100 km . Thanks to BlueTEC technology, all engines comply with Euro 6 emissions standards. With the help of the AdBlue® additive in a selective catalytic reduction (SCR) process, harmful nitrogen oxides in the exhaust gases are converted into water and nitrogen.