Unlocking the Mystery of Focus ST Rear Brake Pad Replacement: A Comprehensive Tutorial

Are you experiencing squeaking or grinding noises coming from your Ford Focus ST’s rear brakes? It might be time to replace your brake pads! While this task may seem intimidating, it’s actually quite manageable for those with basic mechanical skills. This comprehensive guide will walk you through the process of how to change Focus ST rear brake pads step-by-step, making it a breeze for you to tackle this essential maintenance yourself.

Gathering Your Tools and Supplies

Before you begin, ensure you have the following tools and supplies readily available:

• New rear brake pads: Purchase the correct brake pads for your Focus ST model year.
• Jack: A sturdy jack capable of lifting your vehicle safely.
• Jack stands: Always use jack stands for added safety.
• Lug wrench: To loosen and tighten the lug nuts.
• Torque wrench: To tighten the lug nuts to the manufacturer’s specifications.
• Brake caliper piston tool: To compress the brake caliper piston.
• Socket wrench: To remove the caliper bolts.
• C-clamp or vise grips: Optional for compressing the piston if you don’t have a dedicated tool.
• Penetrating fluid: To loosen any stubborn bolts.
• Cleaning supplies: Brake cleaner and rags for cleaning the brake components.
• Gloves: To protect your hands from grease and dirt.
• Safety glasses: To protect your eyes from debris.

Preparation: Safety First!

Before you start, it’s crucial to prioritize safety:

1. Park on a level surface: Ensure your vehicle is parked securely on a level surface.
2. Engage the parking brake: Set the parking brake firmly to prevent the vehicle from rolling.
3. Chock the front wheels: Place wheel chocks in front of the front tires to prevent the vehicle from rolling during the brake pad replacement.
4. Wear safety gear: Don your gloves and safety glasses for protection.

Step 1: Jacking Up the Vehicle

1. Locate the jacking points: Consult your Focus ST‘s owner’s manual to identify the designated jacking points on the vehicle’s frame.
2. Position the jack: Place the jack securely under the jacking point, ensuring it’s positioned correctly.
3. Raise the vehicle: Slowly and carefully jack up the vehicle until the rear tire is slightly off the ground.
4. Secure with jack stands: Place the jack stands under the vehicle’s frame, ensuring they are securely positioned and supporting the weight of the vehicle.
5. Lower the jack: Lower the jack completely. The vehicle should now be safely supported by the jack stands.

Step 2: Removing the Wheel

1. Loosen the lug nuts: Use your lug wrench to loosen the lug nuts on the rear wheel you’ll be working on. Turn them counter-clockwise.
2. Remove the wheel: Once the lug nuts are loosened, remove the wheel by pulling it straight out.

Step 3: Accessing the Brake Caliper

1. Identify the brake caliper: The brake caliper is the metal housing that holds the brake pads and piston. It’s located on the outer side of the brake rotor.
2. Locate the caliper bolts: There are two bolts that hold the caliper to the brake bracket. They are usually located on the back side of the caliper.
3. Remove the caliper bolts: Use your socket wrench and penetrating fluid if needed, to loosen and remove the caliper bolts.

Step 4: Removing the Old Brake Pads

1. Carefully separate the caliper: Gently lift the caliper away from the brake rotor. Be careful not to damage the brake lines or the brake hose.
2. Remove the old brake pads: The old brake pads are held in place by clips or springs. Remove these and gently pull the old brake pads out.

Step 5: Compressing the Brake Caliper Piston

1. Prepare the brake caliper piston tool: Attach the brake caliper piston tool to the brake caliper piston.
2. Compress the piston: Slowly and evenly compress the brake caliper piston using the tool. This will make room for the new brake pads.
3. Inspect the piston: As you compress the piston, check for signs of wear or damage. If the piston is damaged or seized, it may need to be replaced.

Step 6: Installing the New Brake Pads

1. Clean the brake caliper: Thoroughly clean the brake caliper with brake cleaner and rags.
2. Install the new brake pads: Gently slide the new brake pads into the caliper, ensuring they are properly seated.
3. Reinstall the caliper: Carefully reattach the caliper to the brake bracket, making sure the brake pads are in contact with the brake rotor.
4. Tighten the caliper bolts: Tighten the caliper bolts to the manufacturer’s specifications using your torque wrench.

Step 7: Reinstalling the Wheel

1. Reinstall the wheel: Carefully replace the wheel on the hub, ensuring it is seated properly.
2. Tighten the lug nuts: Tighten the lug nuts by hand first, then use your torque wrench to tighten them to the manufacturer’s specifications.
3. Lower the vehicle: Lower the vehicle by removing the jack stands and slowly lowering the jack until the tire is back on the ground.
4. Remove the jack: Remove the jack once the vehicle is safely back on the ground.

Final Steps: Safety Check and Completion

1. Pump the brake pedal: After re-installing the wheel, pump the brake pedal several times to ensure the brakes are working properly.
2. Test drive the vehicle: Take a short test drive to ensure the brakes are functioning correctly and there are no unusual noises.
3. Dispose of old brake pads: Properly dispose of the old brake pads according to local regulations.

Time to Hit the Road!

You’ve successfully replaced your Focus ST’s rear brake pads! This DIY project can save you money and provide a sense of accomplishment. Remember to regularly inspect your brakes and replace them when needed for a safe and enjoyable driving experience.

Common Questions and Answers

Q: How often should I replace my Focus ST‘s rear brake pads?

A: The lifespan of brake pads varies depending on driving habits, road conditions, and the quality of the pads. However, most brake pads should last between 20,000 and 40,000 miles.

Q: What are the signs that my brake pads need to be replaced?

A: Common signs include:

• Squeaking or grinding noises: This indicates the brake pads are worn down and the metal backing plates are scraping against the brake rotors.
• Vibrations in the brake pedal: This could indicate worn or warped brake rotors.
• Spongy brake pedal: This could indicate a problem with the brake fluid level or a leak in the brake system.

Q: Can I replace the rear brake pads without replacing the front brake pads?

A: Yes, you can replace the rear brake pads without replacing the front brake pads. However, it’s a good idea to inspect the front brake pads at the same time to see if they need to be replaced.

Q: What are the benefits of replacing my own brake pads?

A: Replacing your own brake pads can save you money on labor costs. It can also be a rewarding experience, giving you a better understanding of your vehicle’s mechanics.