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Brake Pad Replacement Step by Step: A DIY Walkthrough

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A car wheel removed revealing a disc brake assembly with caliper and rotor visible in a clean JDM garage setting

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Replacing your own brake pads is one of the most rewarding DIY jobs you can tackle in the garage. It saves real money, gives you confidence in what’s stopping your car, and takes most people under two hours once they’ve done it once. This guide walks you through the full procedure for front disc brakes, flags where rear brakes differ, and makes sure you don’t skip the steps that actually matter for safety.

This page is part of the Brake Pad Refresh hub — your home base for everything brake-related on Redline Garage.

Before You Start: Safety Non-Negotiables

Brakes keep you alive. There is no step in this guide more important than the safety setup at the beginning.

Close-up of hands using a socket wrench to remove a brake caliper slide bolt

Tools You’ll Need

Full details are in the brake pad tools kit guide, but here’s the quick list for front pads:

Front Brake Pad Replacement: Step by Step

  1. Loosen the wheel nuts before jacking

    With the car still on the ground and the wheel chocks in place at the rear, crack each wheel nut loose with your breaker bar. Do not remove them yet — just break the initial resistance. Trying to loosen nuts while the wheel is in the air just spins it.

  2. Jack the car and fit jack stands

    Position your floor jack under the manufacturer’s recommended jack point (check your owner’s manual — the wrong spot can crush sill rails). Raise the car, then lower it onto jack stands positioned under rated chassis points. Give the car a firm push before you get underneath. If it rocks, reposition.

    See the full procedure in our jacking up a car guide.

  3. Remove the wheel

    Spin out the wheel nuts by hand, pull the wheel clear and lay it flat under the sill as a secondary precaution. You now have clear access to the brake assembly.

  4. Remove the caliper slide bolts and pull the caliper

    The caliper is the clamp-shaped housing that squeezes the pads against the rotor. It’s held by two slide bolts, usually on the back of the caliper. Remove both bolts, then wiggle the caliper free. It will have some resistance because the pads are still bedded against the rotor.

    This is the step most guides rush. Take your time on caliper removal — rounding off a slide bolt here ruins your day.

  5. Hang the caliper — never by the brake hose

    The caliper is still attached to the car by the flexible rubber brake hose. Do not let it hang by the hose. The hose can crack internally, causing a brake fluid leak that may not be obvious until you’re mid-corner at speed. Use a piece of wire or a proper caliper hook to hang the caliper from the spring or strut. Keep the hose relaxed and un-kinked.

  6. Remove the old pads, clips, and shims

    Slide the old pads out of the caliper bracket. Note the orientation before they come out — some pads are directional. Remove any anti-rattle clips and shims (the thin metal plates behind the pads). Clean the bracket with brake cleaner and a wire brush, removing all rust, dust, and debris from the contact surfaces. This is the step most DIYers skip and then wonder why their new pads squeal.

  7. Compress the caliper piston

    New pads are thicker than worn ones. To get the caliper back over them, the piston must be pushed back into the bore. Place a piston compression tool — or a C-clamp with an old pad as a backing plate — against the piston face and slowly wind it in until it sits flush with the caliper body.

    Watch the brake fluid reservoir. As the piston compresses, brake fluid is pushed back up the line into the reservoir. If the reservoir is overfull it will overflow. Remove a small amount with a turkey baster if needed. Never let it overflow onto paint — brake fluid strips it instantly.

    For rear calipers, this step is different — more on that below.

  8. Fit new clips and shims

    Install the new anti-rattle clips into the caliper bracket abutments. Most quality pad kits include these — use them. They hold the pads correctly and reduce noise. If your kit includes new shims, fit them to the backs of the pads now.

  9. Apply brake lubricant to contact points

    Apply a thin smear of copper grease or ceramic brake lubricant to the metal-to-metal contact points: the abutment surfaces on the bracket where the pad ears sit, and the back face of the shims. Keep all lubricant away from the pad friction material and the rotor surface. Contaminated pads and rotors will not stop the car properly. A small amount of grease in the wrong spot can ruin both pads and rotor.

  10. Install the new pads

    Slide the new pads into the bracket. The pad with the wear indicator — usually a small metal tab — typically goes on the inside (piston side). Check your pad kit instructions if in doubt. The pads should sit flush and slide freely with slight hand pressure.

  11. Refit the caliper and torque the slide bolts

    Lift the caliper back over the pads and rotor. Start the slide bolts by hand to avoid cross-threading, then tighten to the manufacturer’s torque specification with a torque wrench. Typical values range from 25–35 Nm for slide bolts and 80–120 Nm for caliper bracket bolts, but always check your vehicle’s service data. Under-torqued caliper bolts can cause the caliper to shift under braking. Over-torqued bolts can strip threads or crack the caliper ear.

  12. Refit the wheel and torque the wheel nuts

    Lift the wheel back onto the hub, thread the nuts on by hand in a star pattern, then lower the car off the jack stands. Once the weight is on the ground, torque the wheel nuts to spec in the same star pattern. Most passenger vehicles sit between 100–130 Nm, but your wheel nut spec trumps that general figure.

  13. Pump the brake pedal before you move

    This is the step that catches people out. With the piston compressed back into the caliper, the pedal will go straight to the floor the first time you press it. Before driving the car, sit in the driver’s seat and pump the brake pedal firmly 10–15 times until it feels solid and high. You’re moving the piston back out to contact the new pads. Skipping this and reversing out of the garage means you have no brakes. The car will not stop.

Repeat the full procedure on the opposite front wheel. Always replace brake pads in axle pairs — never one side only.

Rear Brake Pads: Key Differences

The front pad procedure above does not apply directly to most rear calipers. There are two important differences:

Wind-back pistons

Many rear calipers — especially on JDM vehicles with integrated parking brake mechanisms — have pistons that must be wound back (rotated clockwise while being pushed in) rather than simply compressed. A standard C-clamp will not work and can damage the piston. You need a caliper wind-back tool kit. The full technique is covered in the caliper piston wind-back guide.

Electronic parking brake (EPB) service mode

If your vehicle has an electronic parking brake — common on cars from the late 2000s onward — the rear caliper piston is motor-driven. You cannot compress or wind back the piston manually without first putting the EPB into service mode via a scan tool. Attempting to force the piston back will destroy the actuator motor. Check whether your car has EPB before you start.

Bedding In Your New Brake Pads

New pads need to be bedded in to transfer an even layer of friction material onto the rotor surface. Skipping this can cause uneven deposits, vibration, and reduced stopping power. The process involves a series of controlled stops from moderate speed — not emergency stops, not highway speeds.

The full bedding procedure is in the bedding-in new brake pads guide. Follow it before you commute.

Do You Also Need New Rotors?

Fitting new pads to worn or lipped rotors reduces pad life and braking performance. If your rotors are below minimum thickness, deeply scored, warped, or have a noticeable lip at the outer edge, replace them at the same time. See do I need new rotors for the full inspection guide.

Torque Reference and the Pedal Pump Warning

Two points that are worth repeating because they cause the most problems:

If you’re unsure about any part of this process, the Brake Pad Refresh hub has individual guides for each sub-task. Brake work done carefully and correctly is well within DIY reach. Brake work done in a hurry is not.

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// Straight Answers

Frequently Asked

Can I replace just one brake pad on one side?

No. Always replace pads in axle pairs — both front pads together, or both rear pads together. Replacing only one side creates uneven braking force and can pull the car dangerously to one side under heavy braking.

How long does it take to replace front brake pads as a DIYer?

For a first attempt, budget 2–3 hours per axle. Once you’ve done it once and have your tools organized, most people get it down to 60–90 minutes per axle. Don’t rush it.

Why does my brake pedal go to the floor after fitting new pads?

Because the caliper piston was pushed back to clear the thicker new pads. The fluid circuit needs to be re-pressurised. Pump the brake pedal firmly 10–15 times while sitting still and the pedal will come back up solid. Never drive without doing this first.

Do I need to bleed the brakes when replacing pads?

Not usually, provided you did not open any brake lines or hydraulic fittings. Compressing the piston pushes fluid back to the reservoir, but the system stays sealed. If you opened a line, or if your brake fluid is old and moisture-contaminated, a full bleed is worthwhile at the same time.

What is the difference between copper grease and ceramic brake grease?

Both are high-temperature lubricants used on pad contact points and shim backs. Copper grease is traditional and effective; ceramic paste is copper-free and preferred where copper contamination of sensors is a concern. Either works for most DIY jobs — just keep both types well away from friction material and rotor surfaces.

My rear caliper piston will not compress with a C-clamp. What am I doing wrong?

Most rear calipers with an integrated parking brake require the piston to be wound back by rotating it clockwise as it is pushed in, not just pressed straight in. A standard clamp will not work. You need a caliper wind-back tool kit. See the caliper piston wind-back guide for the full technique.