• Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • Image Credit: Mercedes-Benz
  • The aluminum roof panel of the 2015 C-Class, affixed to a cutaway portion of the bodyshell.
  • Image Credit: AOL
  • There's a gap between the roof panel and the steel body --
  • Image Credit: AOL
  • because in the Tuscaloosa, Alabama plant, the bodyshell is rotated 360 degrees during painting. The roof panel is attached to the body with screws and 10-millimeter spacers, so the steel and aluminum , which expand at different rates, can cure together after painting. Once dried, the roof is affixed to the body with adhesive. Other factories that don't rotate the body use tabs on the roof panel to secure it to the body.
  • Image Credit: AOL
  • An overhead shot of the multi-part steel construction of the rear axle transverse beam in the current C-Class, upper left, and the single aluminum piece used in the 2015 C-Class. On the lower right is a section of bodywork with different colors highlighting the various metals used in construction.
  • Image Credit: AOL
  • The pieces of the steel rear axle transverse beam.
  • Image Credit: AOL
  • The single-piece aluminum rear axle transverse beam, six pounds lighter than its steel counterpart.
  • Image Credit: AOL
  • The steel construction of the front damper strut assembly in the current C-Class --
  • Image Credit: AOL
  • The single-piece aluminum strut tower assembly in the 2015 C-Class.
  • Image Credit: AOL
  • Impact fasteners are used to connect some aluminum components to the bodyshell were there is enough metal to do so.
  • Image Credit: AOL
  • This is part of the rear wheel-well assembly. The impact fasteners are the row of red circles in the lower center of th photo.
  • Image Credit: AOL
  • Image Credit: AOL
  • The other side of the impact fasteners.
  • Image Credit: AOL
  • A panel showing the placement of cameras and sensors around the car that enable Intelligent Drive.
  • Image Credit: AOL
  • A panel showing the global crash tests the 2015 C-Class has been engineered to pass. Yes, the small-offset frontal impact test is pictured, but Mercedes engineers told us that the full-frontal test is actually the hardest to engineer the car around.
  • Image Credit: AOL
  • Image Credit: AOL
  • The Intelligent Drive simulator using an S-Class placed in front of six screens.
  • Image Credit: AOL
  • Image Credit: AOL
  • Image Credit: AOL
  • An A-Class finish being tested on a rolling road under different temperature conditions.
  • Image Credit: AOL
  • Image Credit: AOL
  • Image Credit: AOL
  • An S-Class also being temperature tested on another rolling road.
  • Image Credit: AOL
Mercedes-Benz drivers and treehuggers don't always go hand in hand, but, like a lot of other companies, the German automaker is looking to boost its green cred. This time, it's all about the car's lifecycle carbon footprint. The Daimler AG unit is using its new C-Class sedan as an example of how it's making progress in that department.

Mercedes-Benz, citing the inspection authority TÜV Süd, says the 2015 C-Class has a 10-percent lower lifecycle carbon footprint than its 2014 predecessor, based on driving about 125,000 miles over the life of the car. About 95 percent of the car (by weight) is recyclable, slightly higher than the average for most vehicles, and the model has upped its amount of recyclable materials up by 23 percent and increased its use of "natural materials" by 55 percent. Better aerodynamics also helps things out on the fuel-economy front, Benz says. Taking a longer view, the 2015 C-Class's carbon footprint is 28 percent better than the 2007 version that launched the vehicle line.

The 2015 C-Class hasn't received a fuel-economy rating from the US Environmental Protection Agency, which tagged the 2014 C350 with a combined fuel-efficiency rating of 24 miles per gallon from its 3.5-liter 6-cylinder engine. Check out Mercedes-Benz's press release below and find the Autoblog First Drive impressions here.
Show full PR text
TÜV Environmental Certificate: The new C-Class makes its mark with an exemplary life cycle assessment
Stuttgart, Mar 28, 2014

The C-Class sets efficiency benchmarks for its class, helped by an intelligent lightweight concept, excellent aerodynamics and new, frugal engines. The neutral inspectors from the TÜV Süd technical inspection authority have confirmed the high level of environmental compatibility of the new Mercedes-Benz C-Class. Besides a sensuous, clean-cut design, a top-class interior and a host of technical innovations, the premium saloon also boasts an exemplary life cycle assessment, which is why it has been awarded the Environmental Certificate in accordance with the ISO 14062 standard.
Professor Dr. Herbert Kohler, Chief Environmental Officer at Daimler AG: "Our engineers have pulled out all the stops in an effort to lower fuel consumption while at the same time further accentuating the car's sporty character. By employing an intelligent lightweight design with a high proportion of aluminium, for example, it has been possible to make the new C-Class up to 100 kilograms lighter than its predecessor. This means the mass that has to be accelerated and braked is lower, reducing fuel consumption and emissions while at the same time making the saloon more agile."
This has resulted in the new C-Class being awarded the Environmental Certificate by the neutral inspectors from TÜV Süd in recognition of the exemplary results achieved in its life cycle assessment.
Over the course of its entire life cycle – from its manufacture through 200,000 kilometres of driving to its recycling – the new Mercedes-Benz C-Class produces around 10 percent fewer CO2 emissions than its predecessor at the time of its market exit (compared to the time of its launch in 2007 the improvement is much higher, at around 28 percent).
A low drag is also crucial to achieving such outstanding efficiency. With a Cd value of 0.24 for the C 220 BlueTEC BlueEFFICIENCY Edition, the new C-Class Saloon sets a new benchmark in the medium-size category. The wind noise level, which was already very low in the preceding generation of the C-Class, has been lowered further still.
And although any thought of recycling may be a long way off at first in the case of a brand new model, the engineers have nevertheless given careful consideration to this process. Consequently, not only does the new C-Class achieve the recycling rate of 95 percent by weight; it also closes many material loops. In total, 52 components in the new saloon with a combined proportionate weight of 49.3 kilograms are made from high-quality recycled plastics. This means that the mass of components made from recycled materials has been increased by 23 percent compared to the outgoing model.
What's more, 76 components in the new C-Class with a combined weight of 26.3 kilograms are manufactured using natural materials. This represents an increase of 55 percent compared to its predecessor.


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