Secondary Air Injection Sensor 1 -G609-, REMOVING AND INSTALLING: Removing
WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 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 HOUSING, REMOVING AND INSTALLING .
-- 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- (example illustration).