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Efficiency boost for Mercedes-Benz E-Class (copyright image) (copyright image)

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17th July, 2011

"E" for "Efficiency": this is the well-proven success formula with which the E-Class saloon is again raising the bar, and showing how the intelligent interaction between technical innovations throughout the powertrain can reduce fuel consumption even further.

For example, in the E 250 CDI BlueEFFICIENCY a combination of the new 7G-TRONIC PLUS automatic transmission and the standard ECO start/stop function has led to a decrease in consumption by over 10 per cent compared to the outgoing model.

Comprehensively improved automatic transmission: 7G-TRONIC PLUS

This comprehensively improved 7-speed automatic transmission is standard equipment in the E-Class sedan range. One major feature of the latest evolutionary phase of 7G-TRONIC is a new generation torque converter with a much more dynamic response. Noise and vibration levels have also been reduced thanks to a new hydraulic circuit, improved dampers and a new torque converter lock-up clutch with considerably reduced slip even under low loads.

With low-friction bearings and seals, as well as a new transmission fluid with lower viscosity, the transmission itself also contributes to fuel economy. Thanks to the long service life and unchanged cooling efficiency of the transmission fluid, this now only needs to be replaced every 125,000 kilometres. The transmission's improved electro-hydraulic control unit and new, low-friction materials in various areas, as well as optimised software, lead to improved smoothness.

The four-cylinder diesels in the E-Class: considerable increase in efficiency

Particularly in the four-cylinder diesel variants of the E-Class, the ECO start/stop function and 7G-TRONIC PLUS make for a considerable increase in efficiency. The engine specialists have also optimised the oil pressure control and belt drive, and equipped the turbocharger with a self-regulating compressor.

In the E 220 CDI BlueEFFICIENCY with 125 kW and E 250 CDI BlueEFFICIENCY with 150 kW with the standard 7G-TRONIC PLUS, combined consumption and CO2 emissions have fallen by 16 per cent to 5.1 l/100 km and 135 g/km.

The four-cylinder diesels in the E-Class at a glance

Engine/cylinders Diesel/4 in-line Diesel/4 in-line
Standard transmission 7G-TRONIC PLUS 7G-TRONIC PLUS
Displacement 2,143 cc 2,143 cc
Rated output 125 kW 150 kW
Rated torque 400 Nm at 1,400-2,800 rpm 500 Nm at 1,600-1,800 rpm
Fuel consumption 5.2 l/100 km 5.1 l/100 km
CO2 emissions 138 g/km (A) 135 g/km (A)

The comprehensive update to the powertrain has also brought significant fuel savings for the four-cylinder petrol engine. The E 250 BlueEFFICIENCY, fuel consumption and CO2 emissions of 7.2 l/100 km and 166 g/km are five per cent lower than the figures for the preceding model with a 5-speed automatic transmission.

The four-cylinder petrol engine in the E-Class at a glance

Engine/cylinders Petrol/4 in-line
Standard transmission 7G-TRONIC PLUS
Displacement 1,796 cc
Rated output 150 kW
Rated torque 310 Nm at 2,000-4,300
Fuel consumption of 2011 7.2/100 km (A)
CO2 emissions of 2011 E-Class 166 g/km (A)

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In addition to the new powertrain features, the Mercedes-Benz E-Class now has new interior and exterior details. These include the full-colour TFT display in the instrument cluster, which is also capable of showing three-dimensional graphics. Another new feature is the standard DIRECT-SELECT selector lever for 7G-­TRONIC PLUS on the steering column - also in the four-cylinder models. The driver is able to select transmission positions "P", "N", "R" and "D" by nudging a selector on the steering column. The operating commands are transmitted electronically, by cable. The package includes steering wheel gearshift paddles. Another standard feature in the ELEGANCE line is the luxury front head restraint, whose side bolsters can be adjusted as required.

Mercedes-Benz E-Class sedan range:

E 220 CDI: $84,800* (MLP*)
E 250: $97,780* (MLP*)
E 250 CDI: $101,005* (MLP*)
E 350: $132,635* (MLP*)
E 350 CDI: $136,485* (MLP*)
E 500: $183,685* (MLP*)

NOTE: * Manufacturer's List Price (MLP) excludes dealer delivery fees and the numerous statutory charges (commonly known as on-road costs). Additionally, please note that all prices, fees and charges are subject to change without notice, as are the specifications.


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