Secondary Air Injection Combination Valves, Checking For Function And Leaks

2009 Audi A6 BaseSECTION Secondary Air Injection Combination Valves, Checking For Function And Leaks
WARNING: This page is about a different car, the 2011 Audi A6 and 2010 Audi A6. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required 

  • Hand Vacuum Pump VAS 6213

Procedure 

  • Vacuum lines and hose connections free of leaks.
  • Vacuum lines not plugged.

-- Remove the engine covers -arrows-.

Fig 1: Removing Engine Covers -1- & -2-
GWWA10-10940Courtesy of AUDI OF AMERICA, LLC

-- Remove the vacuum hose -2- to the combination valve to be checked.

Fig 2: Identifying Vacuum Hoses
GWWA26-10888Courtesy of AUDI OF AMERICA, LLC
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.