Overview - Exhaust Temperature Regulation

WARNING: This page is about a different car, the 2024 Audi Q3 and 2023 Audi Q3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Emissions Control System, Vehicles With Particulate Filter

Courtesy of AUDI

Post-Particulate Filter Temperature Sensor -G527- or Exhaust Gas Temperature Sensor 4 -G648-
- 45 Nm
- Designation in the wiring diagram depends on the model
- Removing and installing. Refer to EXHAUST TEMPERATURE REGULATION COMPONENTS, REMOVING AND INSTALLING .
Nut
- 9 Nm
Pre-Particulate Filter Temperature Sensor -G506- or Exhaust Gas Temperature Sensor 3 -G495-
- 45 Nm
- Designation in the wiring diagram depends on the model
- Removing and installing. Refer to EXHAUST TEMPERATURE REGULATION COMPONENTS, REMOVING AND INSTALLING .
Oxygen Sensor After Catalytic Converter -G130- with Heater for Oxygen Sensor 1 After Catalytic Converter -Z29- or Oxygen Sensor 1 After Catalytic Converter -GX7-
- Designation in the wiring diagram depends on the model
- Removing and installing. Refer to -item 4- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Heated Oxygen Sensor -G39- with Oxygen Sensor Heater -Z19- or Oxygen Sensor 1 Before Catalytic Converter -GX10-
- Designation in the wiring diagram depends on the model
- Removing and installing. Refer to -item 5- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- Tightening Specification. Refer to -item 6- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Particulate Filter Differential Pressure Sensor -G1037-
- Removing and installing. Refer to -item 7- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- -item 8- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER
Pressure Lines
Heat Shield
Nut
- Tightening Specification. Refer to -item 11- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- Tightening Specification. Refer to -item 12- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- Tightening Specification. Refer to -item 13- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- Tightening Specification. Refer to -item 14- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bolt
- Tightening Specification. Refer to -item 15- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Bracket
- For the pressure line
Union Nut
- Tightening Specification. Refer to -item 17- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .
Union Nut
- Tightening Specification. Refer to -item 18- OVERVIEW - HEATED OXYGEN SENSOR, VEHICLES WITH PARTICULATE FILTER .