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Efficient and clean: exhaust aftertreatment for gasoline and diesel engines

Audi TechFocus Newsletter #07

Twin dosing in the 3.0 TDI
  • Total exhaust aftertreatment system reduces nitrogen oxide emissions of TDI engines by more than 90 percent
  • Audi in charge of systems for new V6 TDI engine generation within the VW Group
  • Gasoline particulate filter completes exhaust gas purification of SI engines

Audi is using complex exhaust aftertreatment systems to meet increasingly lower emission limits. Besides the utilization of in-engine technology, the latest gasoline and diesel engines meet the strict standards especially due to powerful and sophisticated exhaust gas purification systems. Particulate filters complement catalytic exhaust aftertreatment on both TDI and TFSI engines.

What are the current challenges of exhaust gas purification?

How has Audi composed its exhaust aftertreatment system for the V6 TDI?

How does multi-stage exhaust gas purification work on TDI engines?

What are the benefits of a twin dosing system?

Animation: SQ5 Sportback Twindosing

When will this V6 TDI engine be launched and in which model ranges will it be used?

Audi emphasizes sophisticated emission reduction technology also with spark ignition (SI) engines. How does Audi reduce pollutant levels for its gasoline units?

Audi S8 cylinder on demand (Animation)

Why do SI engines require a gasoline particulate filter?

How does a gasoline particulate filter work?

What distinguishes Audi’s system compared to the competition?

More information

Head of Product and Technology Communications
Phone +49 841 89 92441
Mobile +49 172 6454554
Spokesperson Audi Q2, Audi SQ2, Audi Q3, Audi RS Q3, Combustion Engines, Drivetrains, Emissions
Phone +49 841 89 36188
Mobile +49 151 54313731
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