How to Find the IAT Sensor on an Audi 2.8

1. Open the Audi's hood. The intake air temperature sensor is always going to be on the intake manifold, near the air filter box.
2. Find the air duct and follow it to the air filter box.
3. Look to the left of the air duct, where it meets the air filter box. The sensor is screwed into the intake in the corner where the air duct meets the air box.