What is the Brake Disc all about?
A brake disc is a smooth metal disc attached to the wheel hub. Most new cars (1999 and above) come with discs at each wheel. Older cars may have drums instead of discs at the rear wheels . Brake discs play an important part in the braking system. It is the friction between brake pads and rotors that cause your car to slow down and stop. As the discs wear out (become thin or warped), they are unable to dissipate the heat caused by the braking system. This will cause the brake fluid to boil and reduce the effectiveness of brake system significantly.
Shocks are basically cylindrical containers filled with gas or liquid. They are mounted from the suspension to the frame of the car. When you drive over a bump, the pistons inside the shocks move up and down against the liquid or gas.
Shocks take a beating day after day, especially on bumpy roads. The gas or liquid will eventually leak, resulting in an unstable or rugged ride. With worn shock absorbers, it is possible that the tires could lose contact with the road and/or wear out prematurely.
Keep in mind:
Brake discs are replaced in pairs. If you choose front brake discs, both front wheels will get new discs. This service comes with brake pads. Unless brake pads were replaced recently, pads must be replaced while replacing the discs.
How it’s done:
- Measure the thickness of brake discs.
- Remove and replace discs and pads
- Perform a brake safety inspection.
- Perform test drive.
It is a good idea to get the thickness of brake discs measured annually. Your mechanic should measure the disc thickness every time the brake pads are replaced. Brake discs usually last twice as long as brake pads, which usually means you need to replace discs every other brake service. If you drive the car with worn-out brake pads for too long, you will destroy the discs.
What common symptoms indicate you may need to replace the Brake Discs/Rotors?
- Vibration or pulsation when applying brakes.
- Blue discoloration of rotor surface.
- Grooves or hot spots in rotors.
How important is this service ?
All services associated with proper function of your brakes are important. In addition to safety issues, ignoring small repairs can quickly lead to more serious (and more expensive) problems.