The Ultimate Guide: How to Change Subaru Legacy Brake Pads

Are you hearing that dreaded screeching sound every time you hit the brakes? It’s probably time for new brake pads. While taking your Subaru Legacy to a mechanic is always an option, changing brake pads is a relatively simple DIY project that can save you money and give you a sense of accomplishment. This comprehensive guide will walk you through the process of replacing your Subaru Legacy brake pads, step by step.

Gather Your Tools and Supplies

Before you begin, ensure you have all the necessary tools and supplies:

• New brake pads: Make sure to purchase brake pads specifically designed for your Subaru Legacy year and model.
• Jack and jack stands: Essential for lifting the car safely.
• Lug wrench: To loosen and tighten the lug nuts.
• Torque wrench: For tightening the lug nuts to the correct specification.
• Brake caliper piston tool: To compress the brake caliper piston.
• Socket set: You’ll need a variety of sockets, including a 14mm socket for the caliper bolts.
• Wrench set: For loosening and tightening various nuts and bolts.
• Penetrating fluid: To loosen any stubborn bolts.
• Safety glasses: To protect your eyes from debris.
• Gloves: To keep your hands clean and protect them from grease.
• Shop towels: For cleaning up spills and messes.
• Optional: A brake pad wear indicator tool to check the thickness of your new brake pads.

Safety First: Prioritize Your Well-being

Working on your car requires caution. Always prioritize safety:

• Park on a level surface: Ensure your car is securely parked on a level surface.
• Engage the parking brake: Always engage the parking brake before lifting the car.
• Use jack stands: Never rely solely on the jack to support the car. Use jack stands to provide additional support.
• Chock the wheels: Place wheel chocks behind the wheels that are not being lifted to prevent the car from rolling.
• Wear safety gear: Always wear safety glasses and gloves to protect yourself from potential hazards.

The Step-by-Step Guide

Now, let’s get started with the brake pad replacement process:

1. Prepare the Vehicle

• Locate the brake caliper: The brake caliper is located on the front or rear wheels, depending on which brake pads you’re replacing. It’s usually a large, metal component with a piston inside.
• Loosen the lug nuts: Use your lug wrench to loosen the lug nuts on the wheel you’re working on. Don’t remove them completely yet.
• Raise the car: Use the jack to lift the car until the tire is a few inches off the ground. Place the jack stands under the car’s frame, ensuring they are securely positioned.
• Remove the wheel: Once the car is safely supported by the jack stands, remove the wheel by removing the lug nuts.

2. Remove the Old Brake Pads

• Open the brake caliper: Locate the two bolts that hold the brake caliper to the bracket. Use your wrench or socket to loosen and remove these bolts. The caliper should now swing freely.
• Remove the old brake pads: Carefully remove the old brake pads from the caliper. You may need to use a small pry bar to help remove them.
• Inspect the brake rotor: While the old pads are removed, inspect the brake rotor for any signs of wear, grooves, or damage. If necessary, replace the rotor as well.

3. Install the New Brake Pads

• Clean the caliper and bracket: Use a wire brush or brake cleaner to remove any dirt, rust, or debris from the caliper and bracket.
• Apply brake grease: Apply a thin layer of brake grease to the back of the new brake pads and to the caliper pins. This will help to prevent squeaking and ensure smooth operation.
• Install the new brake pads: Slide the new brake pads into the caliper, ensuring they are properly seated.
• Reinstall the caliper: Carefully reinstall the brake caliper onto the bracket. Use the bolts you removed earlier and tighten them to the correct torque specification.

4. Compress the Brake Caliper Piston

• Use the brake caliper piston tool: This tool is designed to compress the brake caliper piston back into the caliper. Follow the manufacturer’s instructions for using the tool.
• Be careful not to damage the piston: Use caution when compressing the piston. Avoid using excessive force, as this could damage the piston or seal.

5. Reassemble the Wheel and Lower the Car

• Reinstall the wheel: Carefully place the wheel back onto the hub and tighten the lug nuts by hand.
• Lower the car: Lower the car using the jack and remove the jack stands.
• Tighten the lug nuts: Use the torque wrench to tighten the lug nuts to the correct specification.

6. Test Drive and Final Check

• Test drive the car: Take the car for a short test drive to ensure the new brake pads are working properly.
• Check for any leaks or noises: Listen for any unusual noises or check for any signs of brake fluid leaks.

Important Considerations and Tips

• Brake pad thickness: Always check the thickness of your new brake pads before installation. Use a brake pad wear indicator tool or consult the manufacturer’s specifications.
• Brake fluid: While you’re replacing the brake pads, it’s a good idea to check the brake fluid level. If the fluid level is low, top it off with the correct type of brake fluid.
• Professional assistance: If you’re not comfortable performing this task yourself, consult a qualified mechanic.
• Safety first: Always prioritize safety when working on your car. Follow all safety precautions and use proper tools.

Beyond the Basics: Maintaining Your Brake System

Replacing brake pads is just one part of maintaining your Subaru Legacy‘s braking system. Here are some additional tips to help ensure your brakes are always in top condition:

• Regular inspections: Have your brakes inspected by a mechanic at least once a year.
• Check for wear and tear: Visually inspect your brake pads for signs of wear. If the pads are worn down to the wear indicator, it’s time to replace them.
• Avoid harsh braking: Harsh braking can cause excessive wear on your brake pads and rotors.
• Properly maintain your tires: Properly inflated tires and regular tire rotations help ensure even wear on your brakes.

Your Subaru Legacy Deserves the Best

By following this guide, you can successfully replace the brake pads on your Subaru Legacy yourself. Remember, proper brake maintenance is crucial for your safety and the safety of others on the road.

Questions You May Have

Q: How often should I replace my brake pads?

A: Brake pad replacement intervals vary depending on driving habits, road conditions, and other factors. However, most brake pads need to be replaced every 25,000 to 50,000 miles.

Q: What are the signs that I need new brake pads?

A: Common signs include a high-pitched squealing or grinding noise when braking, a spongy brake pedal, or a noticeable decrease in braking performance.

Q: Can I use any type of brake pads for my Subaru Legacy?

A: No, it’s crucial to use brake pads specifically designed for your Subaru Legacy year and model. Using the wrong type of brake pads can lead to performance issues and safety hazards.

Q: Is it safe to drive with worn brake pads?

A: Driving with worn brake pads is unsafe and can lead to brake failure. Replace your brake pads as soon as you notice any signs of wear.

Q: What happens if I don’t replace my brake pads on time?

A: If you don’t replace your brake pads on time, the metal backing plates of the brake pads can wear down to the point where they make contact with the brake rotor. This can cause significant damage to the rotor and even lead to brake failure.