Charge Air Cooling Pump -V188-, Tightening Specifications
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.
Fig 1: Identifying Charge Air Cooling Pump -V188-, Tightening Specifications