Brake pad wear indicator — How does it work, where does it go?
Brake pad wear indicators attach to the inboard pad on the leading edge; the edge that first contacts the rotor when moving forward. Its job is to contact the rotor and make a high pitched squeal once the friction material wears down to 2-3mm.
How brake pad wear indicators work
When the brake pad friction material wears down to about 2-3mm, the soft metal indicator contacts the rotor and makes a high pitch squealing sound
How brake pad wear indicators are attached to the brake pad
Snapped onto the backing platePosted on by Rick Muscoplat