While Mercedes readies it new E-Class for its U.S. debut with 6- and 8-cylinder gasoline power, it is launching a trial balloon to see if the public is ready for a 4-cylinder turbodiesel version of its popular executive class sedan. So, at the New York show it introduced the 2010 E250 BlueTEC, a diesel concept designed specifically for North America. This model is powered by a 2.2-liter 4-cylinder turbocharged diesel which produces 204 bhp and 369 lb.-ft. of torque, the latter reaching its peak between 1600 and 1800 rpm. The diesel powerplant features high-tech features such as high-pressure common-rail direct injection and twin Lanchester balance shafts for smooth operation. The engine is mated to a 7-speed automatic transmission.
To meet stringent U.S. emission laws, the E250 BlueTEC employs a particulate trap, two catalytic converters plus an AdBlue urea injection system to reduce NOX emissions. The car is equipped with a 25-liter tank for urea, which is scheduled to be replenished during normal service intervals. In addition to meeting Bin 5 emissions regulations, Mercedes says the vehicle will also meet Europe's even stricter EU6 requirements that do not go into effect until September of 2014. This clean diesel E250 BlueTEC concept is said to deliver fuel economy of 28 mpg in the city and 39 mpg highway. Impressive.
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