Safety First!
* Engage the parking brake firmly. This is crucial to prevent the vehicle from rolling.
* Use jack stands. Never rely solely on a jack.
* Wear safety glasses. Brake dust is irritating.
* Use gloves. Brake dust and grease can be messy.
Tools You'll Need:
* Jack and jack stands
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Combination wrench set (metric)
* C-clamp or brake caliper piston compressor tool
* Brake cleaner
* Wire brush
* New brake pads (make sure you get the correct ones for your vehicle!)
* Torque wrench (highly recommended)
* Penetrating lubricant (like PB Blaster)
Steps:
1. Prepare the Vehicle: Park on a level surface, engage the parking brake, and chock the wheels opposite the ones you're working on. Raise the vehicle using the jack and securely place it on jack stands.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Expose the Caliper: You'll see the brake caliper clamped around the rotor.
4. Remove the Caliper:
* Locate the caliper mounting bolts: These are usually on the back of the caliper. They may be stubborn; use penetrating lubricant if needed.
* Remove the bolts: Carefully unscrew and remove the caliper bolts.
* Carefully remove the caliper: Support the caliper with your hand or a bungee cord to prevent the brake line from stretching or breaking. It's usually best to hang it up from something nearby using a wire or bungee cord.
5. Compress the Caliper Piston:
* Use a C-clamp or a specialized piston compressor tool: This is necessary to push the piston back into the caliper. Do this slowly and steadily. You may need to rotate the piston as you push it in.
* Be careful not to damage the piston seal.
6. Remove the Old Brake Pads:
* Inspect the caliper slide pins: Clean and lubricate them with high-temperature brake caliper grease. If they're seized or damaged, replace them.
* Remove the old brake pads: They should slide out relatively easily. If they're stuck, gently pry them out.
7. Install the New Brake Pads:
* Install the new brake pads: Make sure they slide in easily.
8. Reinstall the Caliper:
* Mount the caliper: Carefully slide the caliper back over the new brake pads.
* Tighten the mounting bolts: Tighten them to the manufacturer's specified torque (check your vehicle's repair manual).
9. Reinstall the Wheel:
* Put the wheel back on.
* Tighten the lug nuts: Hand tighten them first, then tighten them fully with the lug wrench (in a star pattern).
10. Lower the Vehicle: Carefully lower the vehicle to the ground.
11. Pump the Brakes: Before driving, pump the brake pedal several times to restore brake pressure.
12. Test Drive: Take a short test drive to ensure the brakes are working properly. If you hear any unusual noises or the pedal feels spongy, have the brakes checked by a professional immediately.
Important Considerations:
* Consult your vehicle's repair manual: This manual will provide specific torque specifications, diagrams, and other important information.
* Replace brake pads in pairs: Always replace the pads on both sides of the axle at the same time to maintain even braking.
* Inspect the rotors: Check the rotors for wear and scoring. If they are severely worn or damaged, they will need to be replaced or resurfaced.
* Bleed the brakes (Possibly): In some cases, bleeding the brakes may be necessary after replacing the pads. This is a more advanced procedure and should only be attempted if you are comfortable with it.
This information is for guidance only. Always consult your vehicle's repair manual and seek professional help if you are unsure about any part of the process. Improper brake repair can be extremely dangerous.
