Corsa ecoFLEX: Low Fuel Consumption and CO2, Lots of Driving Fun.

The ecoFLEX variant is the lowest-consumption, especially low-emission member in each Opel model line-up. The new Corsa ecoFLEX ideally illustrates Opel’s philosophy of developing ecologically responsible cars that are still fun to drive.

Jan 27, 2011

  • Efficient: 3.5 liters diesel per 100 kilometers and 94 g/km CO2
  • Powerful: 95 hp and 190 Nm of torque add driving dynamics
  • Eco-friendly: Start/Stop in all product lines by end of 2011

The ecoFLEX variant is the lowest-consumption, especially low-emission member in each Opel model line-up. The new Corsa ecoFLEX ideally illustrates Opel’s philosophy of developing ecologically responsible cars that are still fun to drive. Opel’s new super-efficient Corsa ecoFLEX is powered by the sophisticated, 70 kW/95 hp 1.3 CDTI diesel engine boosted by a turbo with variable geometry and now equipped with Start/Stop technology. Meeting Euro 5 emission standards and equipped with a Diesel Particulate Filter that cuts the emissions that are the most detrimental to health, it needs only 3.5 l/100 km and releases just 94 g/km CO2  in its three-door variant (five-door: 3.6 l/100 km and 95 g/km) while delivering powerful and lively performance. With the Corsa ecoFLEX, fleet and private drivers in many European countries may benefit from special eco tax advantages and very low fuel costs without polluting the air with diesel particulates.

The 1.3 CDTI engine in the new Corsa ecoFLEX 70 kW/95 hp uses a turbocharger and delivers up to a plentiful 190 Nm of torque between 1,750 and 3,250 rpm.

The engine of the Corsa ecoFLEX combines two strengths: low CO2 and high performance. Opel engineers achieved this by using a turbo with variable turbine geometry, which significantly improves the engine’s performance. They also optimized the calibration on the engine to greatly increase low-end torque and peak power, making a new transmission set-up possible: A longer transmission gear ratio was selected for the five-speed unit, to the benefit of fuel consumption and CO2 values below 100 g. The new 70 kW/95 hp Corsa ecoFLEX has a top speed of 177 km/h and needs only 12.3 seconds to reach 100 km/h from a standstill.

Not only powertrain technology, but further engineering measures make the Corsa ecoFLEX super efficient. Aerodynamics have been improved by lowering the car by 20 mm and optimizing the air flows via the air intakes. Wheels are fitted with newly designed, more efficient wheel caps. The Corsa ecoFLEX is equipped with special 175/70 tires that are roll-resistance-optimized and fitted to lighter, flow formed, 14-inch steel wheels, while 15-inch wheels are optional.

Opel ecoFLEX: Start/Stop to reduce CO2 emissions

Opel is progressively making Start/Stop fuel-saving technology available on most ecoFLEX models. After the 55 kW/75 hp version of the Corsa 1.3 CDTI in summer 2010, which benefited from 10.8 per cent lower fuel consumption thanks to this system (from 4.5 to 4.0 liter per 100 km), the most powerful version of the 1.3 CDTI now also receives the system. By the end of 2011, all Opel product lines will feature this eco-friendly technology.

The Start/Stop principle is simple: An engine which is not running does not consume fuel. With a Start/Stop system, instead of idling at a traffic light or in a traffic jam, the engine stops when the driver engages the neutral gear and releases the clutch pedal. This is indicated by the revolution counter needle moving to the “AUTOSTART” position, also signaling that the system is ready to restart the engine. When the traffic light turns green or traffic gets fluid again, drivers simply press the clutch pedal to restart the engine, shift into first gear and take off.  By eliminating idling time, engines emit less greenhouse gases. In addition, with no engine noise, stops get quieter for the car occupants as well as for pedestrians and cyclists in urban areas. Naturally, owners see the greatest savings in city driving. In the urban cycle, the 70 kW/95 hp Corsa 1.3 CDTI with Start/Stop emits 8.7 percent less CO2 than the similar version without this eco-friendly technology – or, 4.2 l/100 km, compared with 4.6 l/100 km without Start/Stop. In the combined cycle, the Corsa 1.3 CDTI with Start/Stop requires only 3.5 liters of diesel per 100 km.

Of course climate control, power steering and braking capabilities are maintained while the engine is cut off to keep occupants safe and comfortable: The Start/Stop system is not activated if it is unsafe to do so, if it might affect engine operation or if it will reduce cabin comfort for driver and passengers.
The following conditions must be fulfilled to activate Start/Stop:

  • the hood is fully closed
  • the driver’s door is closed
  • the seat belt is fastened 
  • the engine is warmed up 
  • the battery is sufficiently charged
  • engine coolant temperature is not too high
  • ambient temperature is not too low (below -10°C),

(below this temperature the system will not be activated)

  • brake vacuum is sufficient to ensure optimal braking capability
  • the self-cleaning function of the diesel particulate filter is not active

If there is any change in any of these conditions during an automatic engine stop ordered by the driver (AUTOSTOP), the system may restart the engine automatically without the driver’s intervention. And as some drivers may prefer to switch the system off, they can press the ECO button located on the center console to manually deactivate it. The deactivation is indicated by the LED in the button turning off.

During an automatic engine stop, features that will be disabled include the electrical rear window defogging and heated outside rear view mirrors. Other features will be switched to a power saving mode and the infotainment system will be voltage protected during cranking. That means that the navigation system does not need to be reset after the engine has shut down.

ecoFLEX: Continuous improvements for the environment

Opel introduced the ecoFLEX label in 2007 and has been pursuing this commitment to environmental responsibility, step by step, ever since.

When launched in 2007, the Opel Corsa 1.3 CDTI ecoFLEX (55 kW/75 hp) already showed remarkably low fuel consumption of only 4.5 l/100 km and CO2 emissions of just 119 g/km (combined). A year later, the values were reduced to 109 g/km and 4.1 l/100 km or even to 105 g and 4.0 l/100 km when models were not equipped with the particulate filter. Starting January 2010, the Corsa 1.3 CDTI ecoFLEX switched to the more powerful 70 kW/95 hp variant, nevertheless reducing fuel consumption and emissions figures to 3.7 l/100 km and 98 g/km CO2 ( 3-door). Equipped with Start/Stop, the same Corsa 1.3 CDTI ecoFLEX (70 kW/95 hp) today reaches 94 g/km CO2 and 3.5 l/100 km. Progress in action!

Today the brand features a number of ecoFLEX engineered cars in addition to the Corsa, including the Insignia and Astra, and continues to work on improving all members of this family of especially economical vehicles.

The Insignia ecoFLEX, for instance, boasts a remarkable CD value of 0.26, placing it among the top streamlined sedans in the world. It combines fuel consumption of 4.9 liters diesel per 100 km and 129 g/km CO2 with an output of up to 118 kW/160 hp (Insignia Sports Tourer: 134 g/km CO2 and 5.1 l/100 km).

The new Astra 1.3 CDTI ecoFLEX launched in early 2011 has a Start/Stop system that holds its fuel consumption down to 3.9 liter diesel per 100 km and emissions to 104 g/km CO2 (Sports Tourer: 4.1 liter and 109 g).

From Agila to the Zafira, Opel’s wide range of ecoFLEX models meets the most diverse needs of drivers in terms of driving profile and type of use while remaining affordable. The energy mosaic offered by Opel includes gasoline, diesel, Liquefied Petroleum Gas (LPG), and Compressed Natural Gas (CNG).