At the Los Angeles Auto Show, Volkswagen of America, Inc. introduced its new 2.0L four cylinder TDI engine that will be available in Jetta sedan and SportWagen body styles in 2008. The Tier 2 Bin 5-compliant 2009 model year Jetta TDI, equipped with the clean diesel engine option, will be available in all fifty states. (Earlier post.)
The new engine meets the Tier 2 Bin 5 standards with the use of urea injection for Selective Catalytic Reduction. Instead, a nitrous oxide storage catalyst reduces NOx emissions by up to 90%. The engine management system changes operating modes to periodically treat the NOx stored in the catalyst. A particulate filter further reduces emissions, allowing this new clean diesel to be held to the same standards as gasoline models.
In the Jetta application, this sixteen valve engine will produce 140 hp (104 kW) and 235 lb-ft (319 Nm) of torque. Featuring a common rail fuel supply and high pressure injectors, smoothness and drivability have been greatly improved over previous Volkswagen diesel engines.
Volkswagen engineers report that customers can expect “real world” fuel economy to be increased by more than 30%, in comparison to an identical gasoline model. This advanced diesel technology will be available in 2009 Jetta models in the third quarter of 2008—a delay from the earlier projected arrival in spring 2008. Pricing for this new model has not yet been established.