For the following models:
2007+ R56 MINI Cooper and Cooper S Hatchback
To Reset Service Indicators such as the Oil Service Interval, or the Brake Wear Light, perform the following steps:
To enter the service Menu:
Here is another procedure posted by 'A' below (Thank you A):
Good Luck !
For Gen 1 MINIs (2002-2006 R50 & R53 Hatchbacks and 2005-2008 R52 Convertibles), see this article.