S5 Quattro Coupe V8-4.2L (CAUA) (2009)
Air Injection Pump: Service and Repair
Secondary Air Injection Pump
Removing
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Remove noise insulation by loosening fasteners - 1 - and - 2 -.
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Disconnect electrical connector - 3 - on the Secondary Air Injection (AIR) Pump Motor (V101).
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Disconnect the hoses - 1 - and - 2 - for the secondary air injection (AIR).
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Unlock catches - arrows A - and remove the right air intake grille - 1 - from the lower section of the bumper cover - arrow B -.