Overview - Emissions Control System, Version 2

Fig 1: Exploded View Of Emissions Control System (Version 2)

Courtesy of AUDI OF AMERICA, LLC

1. Nut
   • 40 Nm
   • Always replace after removing
   • Coat turbocharger stud bolts with hot bolt paste.
   • Hot bolt paste. Refer to the Parts Information.
2. Gasket
   • Always replace after removing
3. Turbocharger
4. Heated Oxygen Sensor -G39- and Oxygen Sensor Heater -Z19-
   • Removing and installing. Refer to HEATED OXYGEN SENSOR -G39- AND OXYGEN SENSOR HEATER -Z19- [CAEB, CPMA] / HEATED OXYGEN SENSOR, REMOVING AND INSTALLING [CAEB, CAED, CPMA, CPMB] .
5. Oxygen Sensor after Catalytic Converter -G130- and Heater for Oxygen Sensor 1 after Catalytic Converter -Z29-
   • Removing and installing. Refer to OXYGEN SENSOR AFTER THREE WAY CATALYTIC CONVERTER -G130- AND HEATER FOR OXYGEN SENSOR 1 AFTER CATALYTIC CONVERTER -Z29- [CAEB, CPMA] .
6. Catalytic Converter
   • Protect catalytic converter from shocks and impact stress
   • Removing and installing. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING [CAEB, CAED, CPMA, CPMB] .
   • Align the exhaust system without tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .
7. Nut
   • 25 Nm
   • Always replace after removing
8. Gasket
   • Always replace after removing
9. Front Exhaust Pipe