This EBC brake wear lead sensor kit fits the rear of 2001–2003 BMW 525i 2.5L Touring (E39) and monitors pad wear to help prevent rotors from reaching metal-on-metal contact. The vehicle-specific sensor kit is supplied for the matching FMSI pad number and is intended to protect the braking system by providing a timely wear indication.
EBC 2001-2003 BMW 525i 2.5L Touring (E39) Rear Wear Leads