A6 Quattro Sedan V8-4.2L (BVJ) (2007)
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Air Injection Control Valve: Testing and Inspection
Secondary Air injection Combination Valve, Checking
Work procedure
‹› Hose connections properly sealed.
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Pull rear engine cover - arrows - off.
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Disconnect air guide hose - 3 - from Secondary Air Injection (AIR) combi-valve.
‹› The left combination valve for Secondary Air Injection (AIR) is depicted in the illustration.
‹› Ignore items - 1 and 2 -.
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Connect an assisting hose - arrow - to Secondary Air Injection (AIR) combi-valve.