User Guide

3.0 TDI clean diesel

Clean and diesel. The two words may not sound like natural partners, but our advances over the

years have made it possible. The 3.0 TDI engine available in the Audi Q7 features two new

technologies – a DeNOx catalytic converter and AdBlue

tank – which help to make it one of the

cleanest-running diesel cars available today.

The AdBlue

tank contains a biodegradable additive which is injected in tiny doses upstream of

the DeNOx catalytic converter, where it breaks down harmful nitrogen oxides into plain nitrogen

and water. This cuts nitrogen oxide emissions by up to 90 percent, meaning that the Audi Q7 3.0

TDI clean diesel quattro

already complies with the EU 6 emissions standard planned for 2014.