2012 Mercedes-Benz CLS emits less CO2 than its predecessor

Article by Christian Andrei, on January 31, 2011

On January 29, Mercedes-Benz will launch its new CLS model, which is believed to be the most exciting version of the model ever to be released. The carmaker has already started to take orders. What makes the model even more interesting is that it is an environmentally friendly car. Based on a life cycle analysis of the model, the TUV Sud gave the CLS the ISO 14062 standard environmental certification.

Auditors say that the new CLS is one-third more eco-conscious than its predecessor, emitting 21% less nitrogen oxide, 30% less CO2, and boasting an energy content that’s equivalent to 9,300 liters of petrol.

Herbert Kohler, Daimler chief environmental officer, said that the company has been making unprecedented “rapid advances in efficiency.” He also said that the company goes beyond merely complying with legal requirements as it examines the environmental compatibility of its models throughout their life cycle – “from production, through their many years of usage, to end-of-life recycling.”

Mercedes-Benz’s effort to make its products friendlier to mother Earth has been bearing fruits, especially in its new offerings like the Mercedes CLS. Now more eco-conscientious, the new Mercedes CLS is estimated to emit 30 percent less carbon dioxide and 21 percent less nitrogen oxide than its predecessor over its entire life cycle.

Likewise, the new Mercedes CLS is estimated to log 27 percent more primary energy savings compared to its predecessor, translating to the energy content of 9,300 liters of gasoline. Most of the reductions and savings were primarily attributed to the fact that new Mercedes CLS models are now more fuel-efficient than their predecessors.

For instance, the CLS 350 BlueEFFICIENCY now only consumes 6.8 liters of gasoline on a journey of 100 km, while its predecessor, on its market entry in 2014, uses up 6.8 liters per 100 km travelled.

Aside from better fuel efficiency, the Mercedes CLS in fact is already complying with the mandatory recycling rate of 95 percent by weight, which will be effective on January 1, 2015. Interestingly, every time Mercedes develops a new model or create a new vehicle, it already takes into account future requirements in vehicle recycling.

Over time, Mercedes also made sure that the CLS contains parts made from recycled and natural materials. For instance, the new CLS has around 61 components that can be partly produced from high-quality recycled plastics, for a combined weight of 49 kg.

Also, the total mass of approved recycled components had gone up 96 percent over the previous model. On the other hand, around 56 components for the CLS are made from natural materials for a combined weight of almost 31 kilograms. For instance, the coupe’s boot floor is made from a cardboard honeycomb structure while the tank vent filter is made of coke.

Press Release

CO2 emissions one third lower than in the predecessor: Environmental certification for the new Mercedes-Benz CLS

The neutral auditors from TÜV Süd have attested a high degree of environmental compatibility for the new Mercedes CLS. The coupe received environmental certification in accordance with the ISO 14062 standard. This is based on a life cycle analysis of the CLS, comprising a comprehensive evaluation of the automobile's environmental impact. The new CLS will celebrate its market launch at dealers on January 29.

"We have been making rapid advances in efficiency such as have never been seen before in the history of the automobile. And as the inventors of the automobile, we assume particular responsibility for its future," said Professor Herbert Kohler, Chief Environmental Officer of Daimler AG. "We analyze the environmental compatibility of our models throughout their life cycle – from production, through their many years of usage, to end-of-life recycling. This goes far beyond mere compliance with legal requirements." The environmental certificate, together with explanatory material, has been made available to the public in the "Life Cycle" documentation series, which can be accessed at www.mercedes-benz.com .

In addition to the CLS, the A-, B-, C-, E- and S-Class models and the GLK have already received environmental certification from TÜV Süd.

Over the entire life cycle of the Mercedes-Benz CLS – from production and operation over more than 250,000 kilometres up to recovery – the new model emits 30 percent less CO2 than its predecessor did when it was launched in 2004. Nitrogen oxide emissions have been reduced by 21 percent overall. The overall energy balance is likewise positive: Over the entire life cycle, the primary energy savings amount to 27 percent compared to the predecessor; this corresponds to the energy content of 9,300 litres of petrol.

This is largely due to the significant reductions in consumption. In the CLS 350 BlueEFFICIENCY petrol model, for example, consumption has dropped from the predecessor's figure of 10.1 l/100 km (on its market entry in 2004) to 6.8 l/100 km, representing a reduction in fuel consumption of up to 33 percent.

The CLS already meets the mandatory recycling rate of 95 percent by weight that will come into force on January 1, 2015; the future requirements in vehicle recycling were already taken into account at the development stage.

Closing material loops plays an important role here. The new CLS makes use of a total of 61 components with a combined weight of 49 kg that can be partly produced from high-quality recycled plastics. The mass of approved recycled components has been increased by 96 percent over the previous model.

56 components for the CLS with a total weight of almost 31 kilograms are made from natural materials. The boot floor consists for example of a cardboard honeycomb structure, and for the tank vent filter the Mercedes engineers made use of coke, a raw material from nature.

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