The Mercedes Benz E-class Coupe engine line-up includes two new four-cylinder models which deliver significantly more power and torque while consuming up to 17 per cent less fuel.
The Mercedes Benz E-class Coupe's exemplary fuel consumption has not only been achieved because of the new engines, but also with a number of practical measures. These include on-demand activation of the steering and fuel pumps, the use of tyres with low rolling resistance and an alternator control system which takes account of the current driving situation and the vehicle's electrical power requirements, plus the very decisive factor of outstanding aerodynamics.
The diesel engine in the Mercedes Benz E 250 CDI BlueEFFICIENCY Coupe is the top-of-the-range unit in the new generation of Mercedes Benz four-cylinder engines, which are notable for features such as two-stage turbo charging, precise piezo injectors and the latest common-rail technology. The engine has an output of 204 hp and develops a maximum torque of 500 Nm which is available from just 1600 rpm. This means that it is some 36 per cent more powerful than the four-cylinder diesel in the preceding model yet consumes 17 per cent less fuel returning 53.3 mpg (combined NEDC consumption, provisional figure).
The turbocharged V6 diesel engine with common-rail direct injection remains in the line-up. Fitted in the Mercedes Benz E 350 CDI BlueEFFICIENCY Coupe, it develops 231 hp and returns 41.5 mpg (combined) in the NEDC cycle.
Mercedes Benz has also chosen to move over to direct-injection technology for its petrol engines. Once again, Mercedes Benz the E-Class Coupe points the way: the power plant at work under the bonnet of the Mercedes Benz E 250 CGI BlueEFFICIENCY Coupe is a newly developed four-cylinder direct-injection unit with 204 hp and a five-speed automatic transmission as standard. This engine returns 40.4 mpg (combined NEDC consumption, provisional figure).
Mercedes Benz has replaced the previous V6 petrol engine with the world's first six-cylinder unit featuring spray-guided direct petrol injection in the new E 350 CGI BlueEFFICIENCY Coupe. This engine develops 292 hp and consumes about 14 per cent less fuel than the previous V6 engine: its combined fuel economy is 32.5 mpg.
In the top-of-the-range model, the Mercedes Benz E 500 Coupe, the muscular V8 engine with 388 hp and 530 Nm of torque offers the performance characteristics of a sports car. Mercedes Benz engineers have enhanced details of the eight-cylinder unit, to returns 25.9 mpg (combined NEDC consumption). All the engines in the new E-Class Coupes meet the EU5 exhaust emission standard.Published 2 January 2009