Overview - Secondary Air System

WARNING: This page is about a different car, the 2024 Audi A3 Quattro and 2024 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Exploded View Of Secondary Air System

Courtesy of AUDI OF AMERICA, LLC

Bolt
- 9 Nm
O-Ring
- Replace if damaged or leaking
- coat with engine oil
O-Ring
- Replace if damaged or leaking
- coat with engine oil
Secondary Air Injection Sensor 1 -G609-
- Removing and Installing. Refer to Secondary Air Injection Sensor 1 -G609-, REMOVING AND INSTALLING .
O-Ring
- Replace if damaged or leaking
- coat with engine oil
Air Filter Housing
- Overview. Refer to OVERVIEW - AIR FILTER HOUSING .
O-Ring
- Replace if damaged or leaking
- coat with engine oil
Secondary Air Injection Pump Motor -V101-
- Removing and Installing. Refer to Secondary Air Injection Pump Motor -V101-, REMOVING AND INSTALLING .
Bracket
- On body
- There are different versions. Refer to the Electronic Parts Information.
Nut
- 8 Nm
Nut
- 8 Nm
Bracket
- For the Secondary Air Injection Pump Motor -V101-
- There are different versions. Refer to the Electronic Parts Information.
Nut
- 8 Nm
Rubber Bushing
O-Ring
- Replace if damaged or leaking
- coat with engine oil
Suction Line
- From the air filter housing to the Secondary Air Injection Pump Motor -V101-
- There are different versions. Refer to the Electronic Parts Information.
Pressure Line
- From Secondary Air Injection Pump Motor -V101- to the Secondary Air Injection Solenoid Valve -N112-
- There are different versions. Refer to the Electronic Parts Information.
Secondary Air Injection Solenoid Valve -N112-
- Do not disconnect from the flange.
- Replace completely with the flange.
- Removing and Installing. Refer to Secondary Air Injection Solenoid Valve -N112-, REMOVING AND INSTALLING .
Seal
- Replace after removing