Right combination valve for Secondary Air Injection, removing and installing

WARNING: This page is about a different car, the 2010 Audi A8, 2009 Audi A8, 2008 Audi A8, and 2007 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Removing

NOTE:

During installation, all cable ties must be re-installed at the same location.

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Pull rear engine cover - arrows - off.

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Free up fuel line and line to EVAP canister on air guide pipe.
Remove vacuum line - 4 - to air guide hose from suction jet pump.

CAUTION: Risk of violating emissions legislation.

Do not open hose connection - 2 - !

Lay aside air guide hose with connected crankcase ventilation hose - 3 - by loosening hose clamps - 2 and 5 -.

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Remove sound insulation by loosening fasteners - 1, 2, 4 -.

NOTE:

Ignore - 3 -.

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Remove bracket for noise insulation - arrows -.

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Remove bolts - 1 - from below.
Remove air guide hoses - 3 and 4 - from above and lay them aside.
Remove bolt - 2 - and free up electrical wiring on secondary air injection (AIR) combi-valve.
Remove Secondary Air Injection (AIR) combi-valve.

NOTE:

The engine is shown from behind to provide a better illustration.

Installing

Tightening torque →.

Installation is in reverse order of removal, note the following:

NOTE:

Replace gaskets and O-rings.
Secure all hose connections using hose clamps appropriate for the model type .
During installation, all cable ties must be re-installed at the same location.