My rrs 2011 is due for its first service, I'm slightly worried that if I book it in for a service with the 22inch wheels on, are they likely to say its the warranty is in valid? Should I put the 19s on for a service even though it will be a right pain! RRS

It depends on how friendly you are with your dealer, does your dealer sell RRS with 22" wheels on Give the service dept a call and ask what their take is on 22" wheels fitted to a sport, if you don't like their answer, then change them, most dealers are ok, its usually L/R themselves that don't like them. If warranty work is required due to bushers, suspension etc etc then your dealer will have to get authorisation from L/R, they may ask your dealer what wheels are fitted to your motor, thats why you need to know what their take is on 22" wheels, they won't want to miss out on repair work.

As Ady said ^^^

Chances are your dealer will turn a blind eye right up to the point they need to carry out warranty stuff..and at that point you'd probably be best back on standard rims...  RRS gone
Audi SQ5...Gone Audi Q7 S-Line 240 3.0TDI Gone
Audi A6 Allroad Sport 270 3.0TDI

When my car was on order I had my OF wheels sent direct to Stratstone to fit and insisted upon a letter saying they would never affect warranty.