WARNING: This page is about a different car, the 2016 Audi A7 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Courtesy of AUDI OF AMERICA, LLC
1 - Charge Air Pressure Sensor 2 -G447-
2 - Exhaust Gas Temperature Sensor 1 -G235-
The Turbocharger Control Module 1 -J724- can be seen on the left.