Hey, guys - cross-posting this because the steps are substantially similar on your cars. If you wanna DIY your front wheel bearings, here's a comprehensive instruction set for a 2008 S5 (V8). Some things may be different from this 2008 S5 V8, so you'll want to do a little confirmatory diligence on things like fastener sizes, and of course, part numbers, but it should be directionally correct on S4s and other B8 cars. Hope this helps.

**FYI: This schematic and part numbers are for an S5**