|Full-size SUV Vision GL 420 BLUETEC meets Tier 2 Bin 5 emissions requirements with 24 mpg US fuel efficiency.|
DaimlerChrysler, Audi and Volkswagen, all partners in the BLUETEC clean diesel marketing initiative (earlier post), each showed a new Tier 2 Bin 5 compliant (i.e., able to be sold in all 50 states) BLUETEC model at the North American International Autoshow in Detroit, with promises of more to come.
DaimlerChrysler introduced its MercedesBenz Vision GL 420 BLUETEC; Audi showed its new Q7 3.0 TDI BLUETEC; and Volkswagen had its concept Tiguan on display.
The Vision GL 420 BLUETEC is a full-size SUV featuring a V8 diesel engine, which develops 290 hp (216 kW) and 700 Nm (515 lb-ft) of torque, while delivering fuel consumption of 9.8 liters/100 km (24 mpg US).
For a vehicle the size of the GL 420, Mercedes uses a continuous urea-based Selective Catalytic Reduction (SCR) system with a conversion efficiency of up to 80%. The GL 420 is targeted to go on sale in the US in 2008.
Audi confirmed it will introduce its Q7 3.0-liter TDI SUV in the US in 2008 as well. The Q7 3.0 TDI will be Audi’s first model to showcase Tier 2 Bin 5 compliant BLUETEC technology.
As is DaimlerChrysler, Audi is also using a urea-based SCR emissions aftertreatment system to bring NOx emissions down to the required level. Although the approach is the same, the system and suppliers are different, according to Audi.
The Q7 3.0 TDI delivers 171 kW (232 hp) of power.
Volkswagen is using the same BLUETEC aftertreatment system in its concept Tiguan, according to Audi. (Earlier post.) VW is also testing a “Clean TDI” Jetta with a lean NOx trap for its BLUETEC solution. (Earlier post.) VW will provide more technical details on the concept Tiguan later this spring.