Tools you'll likely need:
* Jack and jack stands
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Torque wrench
* Hammer (possibly a rubber mallet)
* C-clamp or caliper piston compressor
* Penetrating oil (like PB Blaster)
* Wire brush (optional, for cleaning)
* Clean rags
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the rear wheels. Raise the front of the vehicle using the jack and securely place it on jack stands.
2. Remove the Wheel: Remove the lug nuts using the lug wrench. Keep them together in a safe place. Carefully remove the wheel.
3. Remove the Caliper:
* Locate the caliper mounting bolts: These are usually two bolts on the back of the caliper.
* Spray penetrating oil: Apply penetrating oil to the bolts to help loosen them. Let it sit for a few minutes.
* Remove the bolts: Use a socket wrench to carefully remove the bolts.
* Support the caliper: The caliper is now hanging by the brake line. You can either use a bungee cord or wire to secure it to something nearby, preventing it from dangling and stretching the brake line. Alternatively, you can carefully hang it on the suspension spring. Do not let the caliper hang by the brake line for an extended period.
4. Remove the Rotor: The rotor should now be free to slide off the wheel studs. Sometimes, they can stick due to rust or corrosion.
* If it's stuck: Gently tap the rotor with a hammer (rubber mallet is preferable) around its circumference to break it free. Avoid hitting the wheel studs. If it's really stubborn, you may need to use a large flathead screwdriver or a rotor puller (available at most auto parts stores).
5. Clean the Hub: Once the rotor is off, use a wire brush to clean the mating surface of the wheel hub. Remove any rust or debris.
6. Compress the Caliper Piston: Before reinstalling the caliper, you'll need to compress the caliper piston. This makes room for the new, thicker rotor if you are replacing it. Use a C-clamp or a specialized caliper piston compressor tool. Important: As you compress the piston, the brake fluid will be pushed back into the master cylinder. Make sure the brake fluid reservoir is at the correct level. If the fluid is overflowing, it could introduce air into the brake system, requiring you to bleed the brakes after the job.
7. Reassembly: Reassembly is the reverse of the removal process. Ensure the rotor is correctly seated on the wheel studs. Torque the lug nuts to the manufacturer's specified torque (consult your owner's manual). Torque the caliper mounting bolts to the manufacturer's specified torque. After installing the wheel and lowering the vehicle, always test your brakes before driving.
Important Considerations:
* Brake Fluid: Be aware of brake fluid and its corrosive nature. Wear safety glasses and gloves.
* Torque Specifications: Always refer to your owner's manual or a reliable repair manual for the correct torque specifications for the lug nuts and caliper bolts. Incorrect torque can lead to damage.
* Rotor Replacement: If you are replacing the rotor, ensure the new rotor is the correct one for your vehicle.
* Brake Bleeding: If you had to significantly compress the brake piston, you might need to bleed the brakes afterward to remove any air that may have entered the system.
If you are not comfortable performing this repair yourself, it's always best to take your vehicle to a qualified mechanic. This procedure involves your brakes, and any mistakes could be dangerous.
