Brake pads are a consumable part of your braking system. They’re essential, as they enable you to slow or stop your Nissan quickly and easily. Pads slowly degrade as they work, and eventually, you’ll need to visit your Nissan dealer for replacements. We want to advise you on what your pads do and how often you should replace them.
What Do Pads Do?
Pads fit into the brake calipers. A set of calipers is attached above each wheel rotor. When you hit the brake pedal, highly-pressurized brake fluid is forced into the brake hoses. The brake fluid forces the pins out of the calipers, and this action causes the calipers to clamp onto both sides of each wheel rotor. The pads then generate friction against the rotors to control your speed and stop your car.
The pads have a 1/2″ thick friction material covering to generate the required friction. The material covering gradually wears off due to friction with the rotors. Once the material covering reaches a thickness of 1/4″, the pads need replacement.
How Often Should You Replace Pads?
Pads need to be replaced every 20,000 to 70,000 miles depending on the type of pads on your car and your model. The correct replacement time for your car’s pads is listed in your car manual. Pads may also need to be replaced more regularly due to driving contusion, driving style, and worn or damaged rake components.
Signs You Need Replacement Pads
Many components give a clear indication that they’re wearing out. These are a few of the signs that your pads and worn and it’s time to replace them:
Screeching Noises
When a pad is reduced to 1/4″ thickness, a metal spike installed in the material is revealed. This spike is built into the pad by the manufacturer, and it serves as a warning device. The next time you apply the brakes, the metal spike will scratch against the rotor surface and produce a loud screeching noise. The spike doesn’t damage the rotor, but it does show that the pad has worn out and needs replacement.
Grinding Noises
A harsh grinding noise when you brake is a sign that one or more pads have completely worn out. Once the friction material covering has broken down, the metal pad will grip the rotor when you brake. This metal-on-metal contact will produce a grinding noise as the pad damages the rotor surface. If this happens, the pad must be replaced immediately to prevent permanent damage to the rotor.
Worn pads increase your stopping distance and place ​unnecessary strain on your braking system. If your pads are due for replacement, call us right away at Ed Martin Nissan of Fishers.
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