Changing brake pads and rotors is a process that can be completed by the owner of the car. The brake pads and rotors on the brake assembly are made of metal and they break because of friction with brake pads.

To change brake pads, you will need to remove the old brake pads from their mounting brackets with a screwdriver or pliers. Clean off as much of the brake pad material as possible from the brake rotor, caliper, and brake line connections with brake cleaner.

Place new brake pads into the mounting bracket and then tighten them down with a hammer or wrench, starting at one side and working your way around until you reach the opposite side. If you have to apply pressure for a significant amount of time to brake the brake pad, you have tightened them too much. If this is the case, release the brake pads and begin tightening again.

Place new brake rotors onto calipers following manufacturer’s directions for installation; most likely they will require that brake fluid is put on the rotor’s surface where it contacts caliper pistons.

To change brake rotors, inspect brake pads to determine if they are worn enough that new brake rotors need replacing or if there is still some use left in your old brake rotors; turn the wheels of your car so that you can see one of the brake rotors on each wheel. There should be a minimum of 3 millimeters of room between your brake pad and brake rotor with brake pads removed. If brake pad material has worn down the brake rotor to the brake line, you will need new brake rotors.

Drill out rivets holding the brake caliper onto the brake assembly bracket if your car is equipped with riveted brake calipers; remove brake calipers and slide in new brake pads into mounting brackets. Tighten calipers back down to tighten brake pads into place on their mounting brackets.

To replace brake fluid, use a funnel to pour fresh fluid into the master cylinder reservoir until it reaches slightly above the max level for the reservoir opening. Remove the cap, push the pedal down halfway and then release five times consecutively; this will help circulate new fluid throughout your braking system components (brake lines).

The brake fluid will need to be replaced every two years.

Once brake pads are installed, brake rotors are mounted, fresh brake fluid is added to the system, push brake pedal down halfway then release five times consecutively to circulate new brake fluid throughout brake components. To ensure proper function of brake assembly, take your car for test drive and make sure brakes work properly before driving on roadways or highways.

To further clean the brake assembly after changing brake pads, use a wire brush to scrub metal surfaces until they are free from rust and other buildup. Clean off any leftover residue with brake cleaner after you have completed all steps in the process of replacing front and rear brake pads and rotors on your own vehicle. You can now enjoy brake assembly that is functional and safe for your car and family.

Article for better reference or if you need to know about brake replacement: https://en.wikipedia.org/wiki/Brake_pad