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Home >> Audi >> 2012 >> Q7 3.0 TDI >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (4.2L - Exhaust System & Emission Controls - Engine Code: Bar) >> 26 Exhaust System, Emission Controls >> Description And Operation >> Secondary Air Injection System Version 1 Overview

Secondary Air Injection System Version 1 Overview

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Secondary Air Injection System, Assembly Overview
GWWA26-10426Courtesy of AUDI OF AMERICA, LLC
  1. Nut
    • Tightening specification: 9 Nm
  2. Bracket
    • for Secondary Air Injection (AIR) pump motor -V101-
  3. Hose
    • To Secondary Air Injection (AIR) combi-valves
  4. Secondary Air Injection (AIR) Pump Motor -V101-
    • Component location: At front right in engine compartment below the longitudinal member
    • Removal and installation, refer to SECONDARY AIR INJECTION PUMP 
    • Check in "Guided Fault-Finding  " operating mode. refer to the vehicle diagnostic tester.
  5. Hose
    • To air filter housing
  6. Bolt
    • Tightening specification: 9 Nm
  7. Bolt
    • Tightening specification: 9 Nm
  8. Flange
    • To cylinder head
  9. Gasket
    • Replace
  10. Right Secondary Air Injection (AIR) Combination Valve
  11. Gasket
    • Replace
  12. Hose
    • To AIR combi-valves
  13. Left Secondary Air Injection (AIR) Combination Valve
  14. Gasket
    • Replace
  15. Gasket
    • Replace
  16. Flange
    • To cylinder head
  17. Bolt
    • Tightening specification: 9 Nm
  18. Bolt
    • Tightening specification: 9 Nm
  19. Grommet
  20. Bushing
  21. Bolt
    • Tightening specification: 9 Nm
Fig 2: Component Location for Secondary Air Injection (AIR) Pump Relay -J299-
GWWA97-10109Courtesy of AUDI OF AMERICA, LLC

4 -

AIR pump relay -J299-

NOTE:

The AIR pump fuse -S130- is located on a separate bracket.