Secondary Air Injection Sensor 1 -G609-, REMOVING AND INSTALLING: Removing
WARNING: This page is about a different car, the 2016 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
-- Remove the air filter housing. Refer to AIR FILTER .
-- Free up the wiring harness and push it slightly to the side.
-- Disconnect the connector -1-.
-- Release the catches and secondary air injection sensor -2-.