Overview - Secondary Air System

Fig 1: Overview Of Secondary Air Injection System

Courtesy of AUDI OF AMERICA, LLC

Nut
- 9 Nm
Bracket
- For the Secondary Air Injection Pump Motor -V101-
Bolt
- 8 Nm
Bonded Rubber Bushing
Secondary Air Injection Pump Motor -V101-
- Component location: in the front of the engine compartment on the right side under the longitudinal member
- Removing and installing. Refer to Secondary Air Injection Pump Motor -V101-, REMOVING AND INSTALLING .
- Check in Guided Fault Finding using the Vehicle Diagnostic Tester.
O-ring
- Always replace
Hose
- For the secondary air injection
O-ring
- Always replace
Bolt
- 9 Nm
Bolt
- 9 Nm
Seal
- Always replace
Right Secondary Air Injection Combination Valve
- Component location: on the front of the cylinder head
- Checking using the Vehicle Diagnostic Tester. Refer to COMBINATION VALVE, CHECKING .
- Removing and installing. Refer to COMBINATION VALVE, REMOVING AND INSTALLING .
Vacuum Hose
Connection Flange
Seal
- Always replace
Vacuum Hose
Left Secondary Air Injection Combination Valve
- Component location: on the front of the cylinder head
- Checking using the Vehicle Diagnostic Tester. Refer to COMBINATION VALVE, CHECKING .
- Removing and installing. Refer to COMBINATION VALVE, REMOVING AND INSTALLING .
Seal
- Always replace
Connection Flange
Seal
- Always replace
Bolt
- 9 Nm
Bolt
- 9 Nm
Hose
- For the secondary air injection
- To secondary air injection combination valve
O-ring
- Always replace
O-ring
- Always replace
Secondary Air Injection Sensor 1 -G609-
- Removing and installing. Refer to Secondary Air Injection Sensor 1 -G609-, REMOVING AND INSTALLING .
Hose
- For the secondary air injection
Resonator
Hose
- For the secondary air injection
O-ring
- Always replace
Bolt
- 5 Nm