Hey guys, not sure if this has been mentioned before but thought I would share a little info I've picked up from East Kent Audi.
As far as re-coding goes, not long ago dealerships in the UK were issued a directive from Audi HQ stating that OEM modules such as the RNS-E and Bluetooth units (and presumably the likes thereof) are blacklisted as unsuitable for fitting after rolling off the factory floor. When a car is brought in for any service or check up work they usually hook it up to their systems to read off the codes and such - and the way they are meant to do it involves relaying that information back to servers in Germany, which then check the coding against the factory specification of the vehicle. If it shows different coding, it is designed to automatically reset all the coding to factory settings, which will of course result in loss of functions.
The service manager I was speaking to told me that there is fortunately a way around it for them where they can manually check fault codes using other equipment and ignore their standard procedures, but those methods are meant for times when they are experiencing technical difficulties, and they usually end up getting a slap on the wrist for doing thing like that.
So I was told that if I had anything done to make sure I mention it to the service guys before they start. Would be great if someone could confirm this for anyone else who may have recently had work done and be going in for a service sometime soon!