Mercedes-Benz BLUETEC

BlueTEC is a proprietary technology of Mercedes-Benz used to make clean diesel cars.Official Site: Mercedes-Benz BLUETEC The system combines a catalytic converter optimized to reduce carbon monoxide, a particulate filter for the exhaust and the AdBlue urea injection process to create what Mercedes maintains is the cleanest diesel in the world.WorldCarFans: Mercedes-Benz BlueTEC Technology (January 10, 2006)

The AdBlue system, which was introduced with 2008 BlueTEC models, uses urea in the exhaust system. The ammonia contained in the urea combines with the nitrogen oxide in the exhaust to produce nitrogen and water. Reportedly, up to 80% of the nitrogen oxide in the exhaust is eliminated by the AdBlue system.Canadian Driver: First Drive: 2007 Mercedes-Benz E320 Bluetec Diesel(December 20, 2006)