If your brake wear warning light is illumninated on your dash, either the front left or rear right wear sensor is worn and needs to be replaced.
2011-2014 R60 Cooper and Cooper S COUNTRYMAN, including the ALL4. 2013-current R61 Cooper and Cooper S Paceman
Each car requires one front and one rear sensor.
For 2007+ R56 MINI Cooper and Cooper S Hatchbacks, 2008+ R55 MINI Cooper and Cooper S CLUBMANs, and 2009+ R57 MINI Cooper and Cooper S Convertibles, see G2NMB2020.
For 2002-2006 R50/R53 Hatchbacks and 2005-2008 R52 Convertibles, see NMK3219.
MINI recommends the brake fluid be replaced every 2 years. See ATE Super Blue for replacement brake fluid. ATE Super Blue is a high quality performance fluid that will last much longer than the standard DOT4 fluid. This is an ABS friendly fluid.