Your vehicle's braking system is arguably its most vital safety feature. While many components work together to bring your vehicle to a safe stop, the brake pad performs the critical, high friction work often taken for granted. In this month's blog, we review how these components function, how to recognize when they need attention, and good maintenance habits crucial for road safety.

How Brake Pads Bring You to a Stop

The entire braking process hinges on converting movement (kinetic energy) into heat (thermal energy) using friction.

1.  Driver Action: When you press the brake pedal, it initiates a hydraulic sequence.

2.  Force Application: Pressurized brake fluid activates the calipers, which act like a clamp.

3.  Friction: The calipers forcefully press the attached brake pads against the spinning rotors (discs). This contact generates the friction needed to slow or stop the wheels.

Common Brake Pad Signs and Issues

  • High-Pitched Squeal: The pad is nearing its replacement limit. Most modern pads have a built-in metal wear indicator that makes this noise when the material is critically thin.
  • Deep Grinding Noise: The pad material is completely gone. The metal backing plate of the pad is now grinding directly against the metal rotor, causing immediate damage.
  • Soft/Spongy Pedal:  Could indicate a system issue like air or moisture in the brake fluid, reducing hydraulic pressure.
  • Vibration/Shaking:  Shaking felt through the steering wheel or brake pedal often points to damage or warping of the rotors, usually caused by excessive heat or prolonged grinding from worn pads.

Brake System Maintenance and Longevity

When a professional services your brakes, they conduct a comprehensive inspection: the wheels are removed, and the pads, rotors, and calipers are all checked.

  • Pads: Worn pads are removed and new ones installed.
  • Rotors: If rotors are too thin or severely damaged, they are replaced. If the damage is minor, they may be "resurfaced" (machined smooth).
  • Calipers: Inspected for proper function, ensuring they are not sticking or leaking fluid.

To maximize the functional life of your entire braking system—and save money in the long run—adopting smooth driving habits is highly recommended:

  • Brake Gently: Anticipate stops and allow your vehicle to coast or naturally slow down before applying the brakes softly. Avoiding sudden, forceful braking reduces excessive friction and heat buildup.
  • Prioritize Inspection: Routine vehicle check-ups are the best defense. Ask your technician to inspect the brake pads and fluid level during every oil change or service appointment to catch wear early.

If you would like your brakes inspected for wear, contact the service professionals at Bell Road Automotive to schedule an appointment.