Tools you'll likely need:
* Jack and jack stands (crucial for safety!)
* Lug wrench
* Wheel chocks
* Socket wrench set (metric)
* Brake caliper piston compression tool (a C-clamp *can* work in a pinch, but a proper tool is safer and easier)
* Wire or a bungee cord to hold the caliper out of the way
* Penetrating oil (like PB Blaster)
* Clean rags or shop towels
* Safety glasses and gloves
Procedure:
1. Safety First: Park on a level surface, engage the parking brake, and chock the wheels opposite the one you're working on. Raise the car using the jack and securely support it with jack stands. Never work under a car supported only by a jack.
2. Remove the Wheel: Remove the lug nuts and take off the wheel.
3. Inspect the Caliper: Look at the caliper and its mounting bolts. Sometimes these bolts can be stubborn due to rust. Spray penetrating oil on the bolts and let it sit for a few minutes to help loosen them.
4. Remove the Caliper: Use the appropriate socket to carefully remove the caliper mounting bolts. Once the bolts are out, gently lower the caliper. It's still attached to the brake line, so it will hang. You may need to use a wire or bungee cord to secure it to something nearby to keep it out of the way and prevent the brake line from stretching or being damaged.
5. Remove the Brake Pads: Depending on your Elantra's design, the brake pads might simply slide out. There are usually retaining clips or pins that hold the pads in. Inspect carefully and remove these retaining components. Note the position and orientation of the brake pads; it helps with reassembly.
6. Compress the Caliper Piston: Use the caliper piston compression tool to push the piston back into the caliper housing. This creates space to fit the new, thicker rotor. Be very careful not to damage the piston or seal. If using a C-clamp, be extremely gentle and methodical to avoid damage. You might need to turn the piston as you compress it.
7. Remove the Rotor: Once the caliper is retracted and the pads are removed, the rotor should be able to slide off. Sometimes a small tap from a rubber mallet or a hammer on a block of wood might be needed to free it. If the rotor is severely rusted or seized, you may need to use a slide hammer or other specialized tools to remove it.
8. Install the new rotor: Ensure the new rotor is properly seated and clean the mounting surface before installing.
Reassembly: Follow the above steps in reverse order, ensuring everything is properly aligned and tightened to the manufacturer's specifications (found in your repair manual). Bleed the brakes after reassembly. This is crucial to remove any air that might have entered the brake lines during the process and restore proper braking performance. Again, consult your repair manual for bleeding instructions.
Important Notes:
* Brake fluid is corrosive and harmful to your skin and paintwork. Clean up any spills immediately.
* If you're uncomfortable with any part of this process, it's best to take your car to a qualified mechanic. Brake work is critical for safety, and improperly done work can be dangerous.
* Always replace brake pads and rotors in pairs (on the same axle).
This is a general guide. Always consult a repair manual specific to your 1996 Hyundai Elantra before beginning any repair work. Remember, safety is paramount when working on your brakes.
