Mercedes Benz R Class (W251) 280 CDI Size, Dimensions, Aerodynamics and Weight. Wheelbase : 117.32 inches / 298.0 cm. Length : 193.78 inches / 492.2 cm. Width : Mercedes ML 250 CDI; Mercedes ML 350 CDI; Mercedes ML63 AMG; Meanwhile, fuel economy so far has been around 25mpg across a mix of driving conditions - that's good for the class. A petrol Fuel tank capacity is 70 liters. Consumption in city is 7,1 lt/100km, consumption in highway is 5,7 lt/100km and combined fuel consumption is 6,2 lt/100km according to official factory data. Estimated M-class ML 250 BlueTEC real World MPG/consumption is 10,0 lt/100km. It is expected to consume 60 percent more fuel than factory data in real Unit 14 Hither Green Trading Estate, Clevedon, Somerset, BS21 6XU Tel: 01275 217270 Email: steve@avantgarde-automotive.co.uk. www.avantgarde-automotive.co.uk. Forums. Technical. Engine, Drivetrain, Fuel and Exhaust. recently purchased a 2008 ml 280 cdi, i seem to be experiencing a small issue with the trip computers fuel 'range' there was a Wayne Gates - Mercedes-Benz, Unit F3, Phoenix Industrial Estate, Rosslyn Crescent, Harrow, Middlesex, HA1 2SP. Tel: 020 8863 9233. Established for 20 years all vehicles washed and vacuumed. Forums. Technical. Engine, Drivetrain, Fuel and Exhaust. Since I purchased the car its always been slow to start,it will turn and turn but will take an Fuel Consumption - Economy - Medium WLTP: 33 MPG 7.2 L/100 km 39 MPG UK: Fuel Consumption - Economy - High WLTP: 37 MPG 6.4 L/100 km 44 MPG UK: Fuel Consumption - Economy - Extra high WLTP: 30 MPG 7.8 L/100 km 36 MPG UK: Fuel Consumption - Economy - Combined WLTP: 32 MPG 7.3 L/100 km 39 MPG UK: Range (WLTP): 613 miles / 986 km: Fuel Tank Capacity : 10. Fuel Injection Issues (Mercedes ML320 CDI Only) Fuel injection problems are primarily associated with the common-rail diesel injection system used in this model. The fuel injection system plays a pivotal role in the proper functioning of the engine, injecting precise amounts of fuel into the cylinders at the right moment for optimal combustion. I have a Passat pd 130 mapped as my daily, improved drivability pulls like a train and if driven sensibly gives a few more mpg. this is whats been done so far to the ML de swirl flap renew all the plastic diesel pipes new thermostat diff oils changed transfer box oil changed auto box serviced changed tyre size had it on holiday done over 1000 Search & read all of our Mercedes-Benz ML350 reviews by top motoring journalists. Find out how it drives and what features set the Mercedes-Benz ML350 apart from its main rivals. Our comprehensive reviews include detailed ratings on Price and Features, Design, Practicality, Engine, Fuel Consumption, Ownership, Driving & Safety. jtMx5.