Overview - Emissions Control System
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Audi A6 Quattro, 2018 Audi A6, 2017 Audi A6 Quattro, 2017 Audi A6, and 2016 Audi A6 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Emissions Control System (CYMC, CYRB, CYRC, CWPB, DAXB, DAXC, CJEB, CJED, CJEE, CNCD, CNCE, CUHA, CUJA, CNCB, CUHB, DAYB, CYGA, CYNB, CYPA, CYPB, CYYA & CVJA)
- Seal
- Always replace after removing.
- Turbocharger
- Heated Oxygen Sensor -G39- and Oxygen Sensor Heater -Z19-
- Removing and installing. Refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .
- Nut
- 40 Nm
- Always replace after removing.
- Coat turbocharger stud bolts with hot bolt paste.
- Hot bolt paste. Refer to the parts information.
- Oxygen Sensor after Catalytic Converter -G130- and Heater for Oxygen Sensor 1 after Catalytic Converter -Z29-
- Removing and installing. Refer to HEATED OXYGEN SENSOR, REMOVING AND INSTALLING .
- Catalytic Converter
- Protect catalytic converter from shocks and impact stress
- Removing and installing. Refer to CATALYTIC CONVERTER, REMOVING AND INSTALLING [CYNB ENGINES] .
- Exhaust System, Installing without Tension. Refer to EXHAUST SYSTEM, INSTALLING WITHOUT TENSION .