Further research to confirm the above, here's the UK schedule:
When should I service my Audi?
Depending on your chosen service regime, there are typically two to choose from. Whichever Audi service regime you choose, your myAudi account and Multi-Media Interface will alert you when it's time to get a service.
Flexible Audi Service Regime
Oil service, based on oil degredation. Maximum of 18,600 miles or two years, whichever is first.
Inspection Service every 18,600 miles or two years, whichever is first.
Fixed Audi Service Regime
Oil service every 9,300 miles or one year, whichever is first.
Inspection service evert 18,600 miles or two years, whichever is first.
Some Audi electric cars have a fixed inspection service every two years with no mileage limit.
https://www.group1auto.co.uk/audi/how-often-should-i-service-my-audi