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Home >> Audi >> 2003 >> RS 6 >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Exhaust System, Emission Controls - 4.2L V8 5V BITURBO - BCY >> Exhaust System, Emission Controls >> Secondary air system, overview >> Overview

Secondary air system, overview: Overview

The following list pertains to Fig 1.

  1. Secondary Air Injection (AIR) Pump Motor -V101- 
  2. Secondary Air Injection (AIR) Pump Relay -J299- 
  3. Engine control unit - J220- 
  4. Combination valve for secondary air system (right) 
  5. Secondary Air Injection (AIR) Solenoid Valve - N112- 
  6. Non-return valve 
    • Installation position as shown in illustration. Arrow indicates direction of flow
  7. To intake manifold 
  8. Combination valve for secondary air system (left) 
  9. Vacuum reservoir 
    • Installation location: in front left wheel housing behind wheel housing liner
  10. Fig 1: Identifying Secondary Air Injection System Components
    G02723562Courtesy of AUDI OF AMERICA, INC.