• Image Credit: AOL - Jonathon Ramsey
2016 Mercedes-Benz GLC 250d front three-quarter.
  • Image Credit: AOL - Jonathon Ramsey
2016 Mercedes-Benz GLC 250d rear three-quarter.
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2016 Mercedes-Benz GLC 250d rear three-quarter.
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2016 Mercedes-Benz GLC 250d side view.
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2016 Mercedes-Benz GLC 250d front view.
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2016 Mercedes-Benz GLC 250d rear view.
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2016 Mercedes-Benz GLC 250d front, up close.
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2016 Mercedes-Benz GLC 250d headlights.
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2016 Mercedes-Benz GLC 250d rear badge.
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2016 Mercedes-Benz GLC 250d cargo area.
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2016 Mercedes-Benz GLC 250d engine.
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2016 Mercedes-Benz GLC 250d wheel.
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2016 Mercedes-Benz GLC 250d interior.
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2016 Mercedes-Benz GLC 250d dashboard.
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2016 Mercedes-Benz GLC 250d interior, opposite view.
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2016 Mercedes-Benz GLC 250d steering wheel.
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2016 Mercedes-Benz GLC 250d instrument cluster.
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2016 Mercedes-Benz GLC 250d infotainment screen.
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2016 Mercedes-Benz GLC 250d console buttons.
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2016 Mercedes-Benz GLC 250d infotainment buttons.
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2016 Mercedes-Benz GLC 250d COMAND controls.
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2016 Mercedes-Benz GLC 250d rear quarters.
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2016 Mercedes-Benz GLC 250d door interior.
  • Image Credit: AOL - Jonathon Ramsey
After more than two years of internal debates and discussions with the Environmental Protection Agency, Mercedes-Benz has decided not to put diesels in any of its passenger cars in the U.S. market. The brand's only diesel offerings will be Sprinter vans. During the Detroit Auto Show, head of R&D for Mercedes Car Group Ola Källenius said diesels only account for 3 percent of brand sales at most, hence, "The diesel doesn't fit into our portfolio in the U.S."

Dieselgate encouraged the EPA to target the emissions of every diesel sold here, and Mercedes took a few bullets. In early 2016, the U.S. Department of Justice asked Daimler to have a look at Mercedes' diesel certification process. Shortly after that, Mercedes delayed for a year plans to sell diesel versions of its C-Class sedan and GLC-Class crossover. One year later, the EPA still hadn't granted Mercedes the right to sell 2017-model-year diesel vehicles in the U.S., so Mercedes gave up trying.

In the wake of EPA investigations into Fiat Chrysler's diesel emissions, Mercedes said last year that the EPA had taken such a hard line on diesels that "functionalities that are common in diesel vehicles" were being labeled as "undisclosed Auxiliary Emission Control Devices and potentially impermissible." Mercedes has decided that the effort to comply requires too much investment for just 2 or 3 percent of sales here, especially now that EVs are getting major attention inside the company and in the marketplace.

Despite U.S. and worldwide diesel sales facing big challenges — UBS Group predicts worldwide diesel market share will decline to 4 percent of passenger cars by 2025, from 13.5 percent at the end of 2016 — some U.S. entrants remain in the game. Outside of trucks, the traditional diesel vehicle, BMW offers an oil-burning 3 Series and X5, Chevrolet has a turbodiesel Cruze, and Jaguar Land Rover — which said 10 to 15 percent of its U.S. sales were diesels — proffers a range of models from the XE to the Range Rover.

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