German carmaker Volkswagen is planning to equip its Volkswagen brand and Audi models with a new 2.0-liter turbocharged diesel engine about a year. Oliver Schmidt, general manager of Volkswagen of America's energy and environmental office, said during the Advanced Powertrain Forum at the 2013 CAR Management Briefing Seminars confirmed the arrival of the new 2.0-liter turbocharged diesel engine, which is touted to be cleaner, more powerful and more fuel efficient than the current powerplant.
The new engine boasts of having 10hp more powerful than the current offering at expected rating of 150 hp. The new engine, however, will have a torque the same as the current powerplant at 236 pounds-feet. The arrival of the new diesel engine comes as other carmakers start offering diesel versions of their units. Volkswagen has been the long-time leader of diesel car sales in North America. In the first seven months of 2013, the Volkswagen brand accounted for around 78 percent of all diesel car sales in the region, after selling 47,000 units.
VW’s new diesel engine is expected to help the carmaker trim production costs since it is nearly identical to the diesel engines VW sells in other markets, according to Schmidt. The diesel engine for North America will have a different emissions system designed to cut oxides of nitrogen. On the other hand, the diesel engine for Europe is designed to cut carbon dioxide emissions.
Schmidt remarked that the current diesel engine offered in Europe cannot be offered in the US due to different emissions regulations, making it more expensive. Schmidt said that VW wanted a base engine that could comply with world standards with a scalable emissions system.
VW engineers designed a new emissions system that merges the diesel particulate filter and selective catalytic reduction (SCR) system in one assembly. The SCR system injects urea into the exhaust to clean NOx or oxides of nitrogen from the exhaust. VW already uses SCR in larger diesel models like the Passat and Touareg. All VW diesel vehicles will uses SCR when the new engine arrives in 2015 models. [source: automotive news - sub. required]