EBC rear brake wear lead sensor kit for 2006–2009 BMW Z4 M 3.2L is a vehicle-specific replacement that warns of pad wear to help avoid rotor damage. Supplied to match the original pad specification, the sensor maintains the brake wear monitoring function so rotors are protected from excessive wear and potential metal-on-metal contact.
EBC 2006-2009 BMW Z4 M 3.2L Rear Wear Leads