Service function guideBrake Noise Diagnosis

This guide gives professional technicians and experienced DIY owners a structured method for tracing brake squeal, grinding and clicking to their root cause rather than replacing parts by guesswork. It begins with how the friction pair, caliper hardware and wheel bearings interact, then walks through a safe, repeatable diagnostic sequence from road test to teardown and measurement. Readers will learn to isolate noise by corner, load and temperature, inspect and measure pads, rotors and hardware against factory service information, and verify the repair with a controlled re-test. The guide also covers vehicle-specific variations, common diagnostic errors, troubleshooting when the noise persists, and the aftercare steps that keep a comeback off the schedule.