2010 Geneva Auto Show: Mercedes-Benz C 220 CDI and E 250 CDI
The new C 220 CDI only needs 4.5 liters of fuel for 100 km, which is 0.3 liters less than the previous model. The CO2 output also went down from 127 g/km to 119 g/km. Drivers of the C 220 CDI have 125 kW (170 hp) and a maximum torque of 400 Nm at their disposal.
The E 250 CDI with an automatic transmission requires 4.9 liters for 100 km as opposed to 5.8 liters for this generation. CO2 emissions went down from 154 g/km to 129 g/km. In the E 250 CDI, the four-cylinder engine achieves 150 kW (204 hp) and develops a superb torque of 500 Nm.
Changes to the four cylinder diesel engine include a lighter crankshaft (it now has only four balance weights as opposed to the previous eight), optimized oil pressure regulation and belt drive plus an exhaust gas turbocharger with a self-regulating compressor. Both the C 220 CDI and the E 250 CDI also received an automatic start/stop system - in conjunction with an automatic transmission for the first time in the case of the E-Klasse.
The automatic transmission has been enhanced with a new transformer with reduced slip, a newly developed ECO shift program with better kingpin inclination and an additional oil pump which maintains the operating pressure during an automatic stop.
With this new generation, consumption and emissions have been cut by around 16 percent for the E 250 CDI and by 6 percent for the C 220 CDI.
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