REAR BRAKE PAD WEAR WARNING INDICATOR SENSOR For BMW1 Sports Hatch (F20) 2012-2019 2 Convertible (F23) 2015-ON 2 Coupe (F22, F87) 2013 -ON. REAR BRAKE PAD WEAR WARNING INDICATOR SENSOR FOR BMW1 Sports Hatch (F20) 2012-2019 2 Convertible (F23) 2015-ON 2 Coupe (F22, F87) 2013-ON.