New Mercedes ML 350 CDI review, test drive

The BlueEfficiency badge you see on the wings of the car is not a single system, but a collection of optimisation measures that work as a whole to make a significant impact on fuel economy. On this car they include a stop-start system, improved aerodynamic efficiency and a catalytic converter that reduces harmful nitrogen oxide gases by a claimed 80 percent. Our tests show the new ML 350 CDI is much more efficient than the old M-class. The new ML BlueEfficiency returned 7.0kpl in the city and 10.9kpl in the highway cycle.