Secondary Air Injection Sensor 1 -G609-: Installing
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.
Install in reverse order of removal. Note the following:
NOTE:
Replace the O-ring.
The hose connections as well as the air guide pipes and hoses must be free of oil and grease before installing.
Secure all hose connections with hose clamps of the same type as those equipped by the factory,
In order to be able to securely mount the air guide hoses on their connectors, spray the screws on the previously used clamps with a rust remover.