Mercedes C-Class models - better fuel efficiency with greater performance
By Jeff Salton
May 4, 2010
Mercedes-Benz is now equipping its popular C-Class 180 CGI, 200 CGI and 220 CDI models with BlueEFFICIENCY. Featuring six-speed manual transmissions and ECO start/stop functionality, the company says this technology will reduce the vehicles’ fuel consumption and CO2 emissions by 10 percent . The newly-configured C 220 CDI will now consume only 4.4L/100km and CO2 emissions drop to 117g/km. Also added to the line-up for the first time is the C 250 CDI 4MATIC Blue EFFICIENCY four-cylinder 4WD diesel.
Mercedes-Benz says its direct petrol injection technology provides further reduction in fuel consumption, which was previously only available in automatic transmission models.
Direct fuel injection allows higher compression and thus improved thermodynamic efficiency. These engines have higher torque and yet are more economical.
The new C 200 CGI BlueEFFICIENCY model has a displacement of 1.8L and an output of 135 kW (180 hp) but only consumes 6.8L of premium unleaded petrol per 100 km (combined NEDC consumption) - around 10 percent less than the previous four-cylinder engine with conventional fuel injection and a supercharger. CO2 emissions are also reduced by 12 percent.
Despite the lower fuel consumption, the peak torque has been increased from 250Nm to 270Nm, giving the new C 200 CGI an edge of 0.4 over the previous model when sprinting from 0-100kmh (8.2 seconds).
The C 180 CGI BlueEFFICIENCY direct-injection petrol engine develops 115kW (154 hp) and the manual transmission gets to 100 km/h half a second faster than the previous automatic model in 9.0 seconds.
The ECO start/stop function in the vehicles stops the engine automatically when coasting up to traffic lights and as soon as its speed falls below 8kmh, or once the driver hits the brake pedal and moves the gear lever into neutral. The engine starts immediately when the driver presses the accelerator or clutch pedal. Availability of the ECO start/stop function is indicated on the instrument cluster. The new Mercedes-Benz C 220 CDI BlueEFFICIENCY model with a six-speed manual transmission has an output of 125kW (170hp) and a peak torque of 400Nm, racing from 0-100kmh in 8.4 seconds. Yet its combined fuel consumption is just 4.4L/100kmh.
The new C 220 CDI BlueEFFICIENCY with ECO start/stop function is therefore the most fuel-efficient C-Class of all time.
The 250 CDI 4MATIC BlueEFFICIENCY combines a powerful four-cylinder diesel engine developing 150kW (204hp) and a peak torque of 500Nm with the 4MATIC four-wheel-drive system, which is permanently active and responds instantaneously, assisting the driver at all times in adverse weather conditions.
As standard, Mercedes-Benz combines the permanent all-wheel drive system with the Electronic Stability Program (ESP) and the traction system 4ETS, which enables controlled braking of spinning wheels and thus increases the drive torque at the wheels for better traction. The C 250 CDI 4MATIC BlueEFFICIENCY is equipped with a seven-speed automatic transmission as standard. The new Mercedes-Benz C 180 CGI BlueEFFICIENCY is priced from €32,219.25 and the C 200 CGI BlueEFFICIENCY from €34,242.25. The C 250 CDI 4MATIC BlueEFFICIENCY model will sell from €43,524.25 and the C 220 CDI BlueEFFICIENCY model with ECO start/stop function will be available from €36,384.25 in Q3 this year.