Quick answer: Brake Pads on a 2014–2018 Mazda3 is rated Advanced and takes about 1-2 hours. You'll need 6 tools for this job, and parts cost about $75. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name |
Part Number |
Price |
Buy |
| Brake Pads (axle set) |
— |
$45.00 |
|
| Brake Lubricant (caliper slides/pins) |
— |
$8.00 |
|
| Brake Cleaner Spray |
— |
$7.00 |
|
| Brake Hardware Kit |
— |
$15.00 |
|
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Step-by-Step Instructions
Follow these steps carefully
1
Safety first
Park the 2014-2018 Mazda3 on level ground, chock the opposite wheels, loosen the lug nuts slightly, then raise and support securely on jack stands — never rely on the jack alone. If you are doing the REAR brakes: the Mazda3's electric parking brake must go into maintenance mode BEFORE you touch the calipers. With the ignition ON (engine off) and the parking brake released, run the EPB-switch sequence from the service procedure (a series of hold operations on the EPB switch) until the cluster indicates maintenance mode and you hear the actuators wind back. If the mode will not engage, stop and use a Mazda-capable scan tool instead of forcing anything.
🔧 Mechanic's note — Tom Becker
I know the EPB maintenance mode is the step that bites people — if the cluster doesn't confirm it and you force the rear piston, you'll wreck the actuator. No confirmation, no wrenching; grab the scan tool instead.
2
Remove the wheel
Remove the wheel on the axle you are servicing on the 2014-2018 Mazda3 and keep the lug nuts organized. Check the rotor for scoring, cracks, and minimum thickness (stamped on the hat), and look at the old pads' wear pattern — uneven wear means the slides need attention. On the rear, verify maintenance mode is active (cluster message, actuators silent) before proceeding; the pistons should now press straight back with no resistance from the EPB motor.
3
Remove the old pads and hardware clips
Slide out the old pads and remove the stainless hardware clips, noting their orientation. Inspect the caliper boots and the piston dust seal for tears or leaking fluid — a weeping piston means the caliper needs rebuilding or replacement, not pads.
4
Clean and lubricate
Inspect the rotor surface on the 2014-2018 Mazda3. Clean the bracket pad-slides with brake cleaner and a wire brush until the new pads' ears slide freely in the channels — rust ridges here are the number-one cause of uneven pad wear and noise on these cars. Clean the slide pins, relubricate lightly with silicone brake grease, and replace any torn boots. Fit the new stainless hardware clips; never reuse corroded clips that no longer hold the pads snugly.
🔧 Mechanic's note — Ray Delgado
Those rust ridges in the pad channels are the number-one noise complaint I see on Mazda3s — I file the channels until the pad ears drop in under their own weight. If you have to force a pad in, it'll drag and wear unevenly.
5
Install the pads
Install the new pads with shims and hardware exactly as the originals were arranged, confirming the pads sit squarely in the bracket and the anti-rattle clips are seated.
6
Reassemble and bed brakes
Refit the caliper, torque the bolts, and refit the wheel, torquing the lug nuts in a star pattern to the owner's-manual spec (Mazda's range is roughly 80-108 ft-lb / 108-147 N-m — confirm your exact figure). Lower the 2014-2018 Mazda3 and pump the brake pedal until firm. If you serviced the rear, exit EPB maintenance mode with the reverse switch sequence (or the scan tool) and cycle the parking brake to verify it applies and releases normally. Bed the pads with several moderate 30-mph stops with cool-down time, and recheck lug torque after 50-100 miles.
All Done!
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
- • Installing pads backwards or on the wrong side
- • Forgetting to compress the piston before reinstalling the caliper
- • Not lubricating slide pins with brake-safe lube
- • Skipping the pedal pump after reassembly
- • Reusing heavily worn rotors when scoring is deep
