Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
General Foot Brake, Front And Rear
When braking, the driver presses the brake pedal and an increased hydraulic fluid pressure is generated in the brake system. The increased pressure presses the piston and the inner brake pad against the brake disc at the same time as the brake caliper and the outer brake pad are pressed against the brake disc.
The dust boot (11) prevents dirt getting in between the cylinder and piston
The splash guard prevents water and salt from soiling the brake disc. Any soiling results in reduced friction and hence impaired braking power.
Certain vehicles have an electric parking brake on the rear wheel brakes. The electric motor is on the caliper and affects the piston mechanically, which then presses the pads together.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.