Self Study Program 941803 – Audi 3,0-liter V6 TDI

VAG SSP 941803. This Self-Study Program (SSP) describes the design and function of the 3.0 liter Clean Diesel TDI Engine and exhaust gas after-treatment system.
When you have completed this SSP, you will know the following:

  • Design and function of the 3.0 liter TDI engine
  • The limits established by the emission standards for diesel engines in various countries throughout the world
  • Which components are used in the exhaust gas after-treatment system
  • The location and function of these components
  • The influence of combustion chamber pressure
  • The reason for heating the tank elements of the reducing agent at low ambient temperatures

Audi Introduces the Cleanest Diesel Technology World Wide into Standard Production

The systematic evolution of the TDI resulted with the development of the world’s cleanest diesels. The core components of this current TDI combustion system development include:

  • The fuel injection system
  • Comprehensively improved exhaust gas recirculation system
  • Optimized turbocharging
  • Integrated cylinder pressure control system

As a first step, improvements to these systems help to significantly reduce the engine’s untreated emissions. In the second step, an active exhaust gas after-treatment system reduces the oxides of nitrogen emissions to a minimum. Thus, by combining engine modifications with a new exhaust gas after-treatment system, the Clean Diesel system makes it possible to efficiently minimize emissions while at the same time reducing fuel consumption.

The objective is the further development of TDI technology to achieve emissions below the future EU6 limits, as well as below the most stringent LEV II/BIN5 limits, and to be ready for world-wide use.


  • Introduction
  • Engine Mechanical
  • Fuel System
  • Engine Management
  • Exhaust Treatment
  • Service
  • Appendix
  • Knowledge Assessment

Language: English
Format: PDF
Pages: 103

Self Study Program 941803 – Audi 3,0-liter V6 TDI