Slow down. Understand more.Control through friction.
A disc brake slows a wheel by pressing friction pads against a rotating disc, or rotor. Friction converts the vehicle’s kinetic energy into heat.
MechanismFriction
Energy flowMotion → heat
ActuationHydraulic
HOW IT WORKS01 / 04
Apply pressure
Pressing the brake pedal creates hydraulic pressure at the master cylinder. The fluid transmits that pressure through the brake lines.
How it connects
The rotor rotates with the wheel hub. Brake lines carry hydraulic pressure from the master cylinder to the caliper. ABS can modulate that pressure to manage wheel slip.
Braking system
Noise or vibration while braking
A squeal or pedal vibration can involve several parts at the wheel.
POSSIBLE CAUSES- Uneven disc wear or a contaminated mounting surface.
- Pad contact, worn hardware or sticking caliper slides.
Uneven pad wear
One pad or one wheel may wear faster than another.
POSSIBLE CAUSES- Caliper pistons or sliding parts not moving freely.
- Wear or contact problems between the pads and disc.
Symptoms can overlap. These examples explain possible relationships, rather than diagnose this model or a vehicle.