Secondary Air Injection Sensor 1 -G609-: Removing

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, and 2010 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Engine Cover -1- And -2-

Courtesy of AUDI OF AMERICA, LLC

-- Remove the rear engine cover -2- upward.

-- Free up the fuel hose -1- and the EVAP canister hose -2- on the air duct pipe.

Fig 2: Identifying Air Duct Pipe

Courtesy of AUDI OF AMERICA, LLC

-- Remove the vacuum hose -3- from the air guide pipe connection.

-- Remove the air guide pipe by loosening the hose clamp -4- and opening the clips -arrows-.

-- Disconnect the connector -1-.

Fig 3: Identifying Installed Location: AIR Sensor 1 -G609-

Courtesy of AUDI OF AMERICA, LLC

-- Open the locking mechanisms -arrows- and Secondary Air Injection (AIR) Sensor 1 -G609- -2-.