Hyundai i30 rear discs and pads! How to change rear brakes!

Introduction

In this tutorial, we will guide you through the process of changing the rear brake discs and pads on a Hyundai i30. This task is essential for maintaining your vehicle's braking performance and safety. Whether you're a DIY enthusiast or just looking to save some money on repairs, this step-by-step guide will help you complete the job with confidence.

Step 1: Gather Your Tools and Materials

Before getting started, ensure you have all the necessary tools and materials on hand. This will make the process smoother and more efficient.

Tools Required

• Socket set (including a 12mm socket)
• Torque wrench
• Brake caliper tool or C-clamp
• Screwdriver
• Pliers
• Brake cleaner
• Jack and jack stands
• Wheel chocks

Materials Needed

• New brake pads
• New brake discs (rotors)
• Brake grease

Step 2: Prepare the Vehicle

Ensure your vehicle is in a safe, stable position before you begin the brake replacement.

1. Park the Hyundai i30 on a flat surface.
2. Engage the handbrake to prevent the car from rolling.
3. Place wheel chocks behind the front wheels for extra safety.
4. Loosen the lug nuts on the rear wheels slightly but do not remove them yet.

Step 3: Raise the Vehicle

Now, lift the rear of the vehicle to access the brakes.

1. Use a jack to raise the rear of the car.
2. Secure the vehicle with jack stands to ensure stability.
3. Remove the loosened lug nuts and take off the rear wheels.

Step 4: Remove the Brake Caliper

Next, you'll need to take off the brake caliper to access the brake pads and discs.

1. Locate the caliper bolts (usually at the back of the caliper).
2. Use your socket set to remove the caliper bolts.
3. Carefully slide the caliper off the brake disc.
4. Support the caliper with a bungee cord or rope to avoid straining the brake line.

Step 5: Remove the Old Brake Pads and Discs

Now you can remove the old brake pads and discs.

1. Take out the old brake pads from the caliper bracket.
2. Inspect the pads for wear; they should be replaced if they are worn down significantly.
3. Remove the brake disc by unscrewing any retaining screws if applicable.
4. If the disc is stuck, gently tap around the edges with a rubber mallet.

Step 6: Install New Brake Discs

With the old discs removed, you can now install the new ones.

1. Place the new brake disc onto the hub.
2. Ensure it sits flush and secure it with any retaining screws.
3. Clean the surface with brake cleaner to remove any protective oil.

Step 7: Install New Brake Pads

Now it’s time to install the new brake pads.

1. Apply a thin layer of brake grease on the backing of the new pads to prevent squeaking.
2. Insert the new brake pads into the caliper bracket.

Step 8: Reinstall the Brake Caliper

After the pads are in place, you can reinstall the caliper.

1. Carefully slide the caliper back over the new brake pads and disc.
2. Reinstall and tighten the caliper bolts with your socket set.
3. Ensure the caliper is properly secured.

Step 9: Reassemble the Wheel

With the brakes in place, reassemble the wheel.

1. Place the wheel back onto the hub.
2. Hand-tighten the lug nuts.
3. Lower the vehicle off the jack stands.
4. Once back on the ground, use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.

Conclusion

Congratulations! You have successfully changed the rear brake discs and pads on your Hyundai i30. Remember to test your brakes gently before driving normally and to check for any unusual noises. Regular maintenance of your brakes is crucial for safe driving. If you're unsure about any steps or encounter difficulties, consider consulting a professional mechanic for assistance.