What Tools Do I Need to Change Nc Miata Brakes and Rotors
Mazda MX-5 Miata Rear Brake Pads Replacement Guide
How to change the rear disc brake pads on a quaternary generation 2016 to 2021 Mazda MX-5 Miata with the part numbers.
2018 Miata Rear Cycle
Slightly Loosen Lug Nuts
Raise Rear of Vehicle
This automotive maintenance tutorial was specifically written to help owners of the 4th generation ND (2016, 2017, 2018, 2019, 2020 & 2021) Mazda MX-5 Miata in changing the rear disc brake pads and lubricating the caliper slider pins.
Owners of other Mazda vehicles such as the Mazda2 (Demio), Mazda3 (Axela), Mazda5, Mazda6 (Atenza), CX-three, CX-v, CX-7, CX-9, RX-8 and MPV may likewise notice these DIY instructions to be helpful.
The tools and other items needed to complete this procedure include a lug nut wrench (or a 21mm or thirteen/sixteen" socket), a flooring jack, two jack stands, a 12mm socket with a 3/viii" drive ratchet, a 17mm wrench, a Lisle 28600 disc brake piston tool and a tube of brake caliper grease.
A few compatible replacement sets of new rear restriction pads with their part numbers include the post-obit: EBC DP41775R, Centric 105.118, Bosch BP1180, Power Cease Z23-1180, StopTech 309.11800 and Wagner QuickStop ZD1180.
The first few steps are to park the car on a level surface, shift the manual into park and plow off the ignition.
Spin Off Lug Nuts
4 Lug Basics Removed
Pull Off Rear Bicycle
If the parking brake is engaged, you will not be able to pull the rear caliper off the old brake pads and out of the bracket.
Important - If your newer MX-5 has an electronic parking restriction or "EPB", it must be placed into service / maintenance mode. Delight see my instructions on the Mazda6 Rear Brake Pads Replacement Guide.
This 2018 Miata MX-five did Not accept an electronic parking restriction or "EPB". It is equipped with a standard cable operating emergency / parking brake.
Identify cycle chocks on both sides of the forepart tires to forbid the auto from moving.
Slightly loosen the 4 lug nuts on the rear bicycle by turning them well-nigh i/ii plow in the counterclockwise direction with the tire atomic number 26. You tin likewise use a 21mm socket or a thirteen/16" socket with a i/two" bulldoze ratchet or breaker bar.
Advisedly raise the rear of the vehicle with the floor jack until the tire is about an inch or ii off the ground.
I adopt to simply work on one side of the machine at a fourth dimension in club to keep three tires on the basis for extra prophylactic.
Securely back up the vehicle with at least two jack stands.
Practice not solely rely on the floor jack to back up the vehicle.
Spin off the four lug nuts and fix them aside in a condom place.
Carefully remove the rear wheel and set it aside. Some people similar to place the wheel under the frame rail of the machine for actress safety just in case the floor jack and jack stands fail.
Rear Restriction Caliper
Loosen Lower Caliper Bolt
Hold Pin With Wrench
The rear restriction caliper is held in place to the bracket by two bolts on the dorsum side of the caliper. The bolt heads face in towards the center of the automobile.
Loosen the lower caliper bolt by turning it in the clockwise direction (as seen from the outside of the auto) with the 12mm socket and a iii/8" bulldoze ratchet.
If the caliper slider pin turns as you are attempting to loosen the caliper bolt, hold the pin in place with a 17mm wrench.
Loosen Tiptop Caliper Bolt
Spin Out Upper Bolt
Spin Out Bottom Commodities
If the caliper slider pin moves when you are trying to loosen the bolt, hold it with the 17mm wrench.
Spin out the ii caliper bolts and set them aside in a safe place.
2 Caliper Bolts Removed
Lift Caliper Off Pads
Rest Caliper On Bracket
Endeavour to avoid stressing, kinking, bending, pulling or stressing the safe brake fluid hose.
Rest the caliper on top of the subclass or suspend it from the interruption spring with a bungee string or some twine / rope.
The rear brake calipers are equipped with "spiral-in" blazon pistons that need to rotated back in order to retract them.
Attention : Look at how the caliper piston is aligned in the moving-picture show above. It should expect the same way after you are done rotating it back after on. This is so that the raised pegs on the dorsum of the pads fit into the grooves properly.
Remove Old Inner Pad
Remove Old Outer Pad
Pad Abutment Clips
Make a mental note of where the wear indicator bar or "squeal" bar is situated on the onetime brake pads.
On this 2018 Miata, the vesture indicator bar was located at the top of the old inner pad.
If your new set of rear pads includes a bag of replacement hardware, pull the quondam metallic pad abutment or "anti-rattle" clips out of the top and bottom of the bracket.
Thoroughly clean off the rotor, bracket, caliper and lug studs with some CRC Restriction Parts Cleaner spray.
Endeavor to avoid animate in the restriction dust or the cleaning spray.
Use a sparse layer of brake parts lubricant grease to the new pad abutment clips where they will come up in contact with the bracket or the ends ("ears") of the new pads.
Push the new pad abutment clips into the top and bottom of the bracket.
Supplant Abutment Clips
Pull Out Caliper Slider Pins
Lubricate & Supercede Pins
In order for the caliper to operate smoothly, the two caliper slider pins or "guide bolts" demand to be well lubricated.
Pull the slider pins out of their rubber grit boots fastened to the bracket.
Apply a thin layer of brake caliper grease to the polish parts of the ii pins before pushing them back into the subclass.
Make sure the rubber dust boot "snaps" or "pops" over the metal lip on the pins.
Rotate the pins a few times to assistance spread the grease.
Disc Brake Piston Tool
Rotate Back Caliper Piston
Clothing Bar - Top Inner Pad
Important - If your newer MX-five has an electronic parking brake or "EPB", information technology must exist placed into service / maintenance mode and the rear caliper pistons should Not exist turned / rotated / screwed-in. Please encounter my EPB service mode instructions on the Mazda6 Rear Brake Pads Replacement Guide.
If your MX-5 has a standard cable operated parking brake such as the 2018 model pictured on this page, you may follow the instructions shown for manually turning back the screw-in type caliper piston.
Test fit the various sides of the Lisle 28600 disc brake piston tool to meet which side has the best grip on the caliper piston.
I found that the side with the four "A" shaped nubs or pegs seemed to have the best fit.
Attach the piston tool to a short iii/viii" drive ratchet and a 3/8" drive ratchet.
If you don't have a piston tool, you lot may exist able to use a pair of needle olfactory organ pliers to turn back the piston.
Slowly turn the piston in the clockwise management to retract information technology back. Continue rotating the piston until it is just about flush with the prophylactic dust kick that surrounds information technology.
If you feel a lot of resistance while turning the piston, remove the brake fluid reservoir cap in the correct rear expanse of the engine bay and check the fluid level.
Attending : Make sure that the caliper piston's "grooves" are in the aforementioned position every bit when you removed the caliper. This is so that the grooves line upward with the raised pegs on the back of the pads. See the movie beneath.
If you've been feeling vibrations or shuddering in the dorsum of the car when you stride on the restriction pedal, the original OEM rotors might exist warped and they should be replaced with new rotors.
To replace the rotors, remove the 2 14mm bolts on the back side of the bracket, pull the bracket off the rotor, slide the old rotor off and slide the new rotor into place. Replace the bracket and the two 14mm bolts. Tighten the bracket bolts to the store manual specification of 38 to 48 lb-ft of torque (or 51-66 Nm).
Install the new inner and outer brake pads into the bracket.
The wear indicator bar should be situated at the summit of the inner brake pad.
Install New Outer Pad
Push Pads Against Rotor
Lower Caliper Over Pads
Carefully lower the caliper over the new pads and into the bracket.
If the caliper won't fit over the thicker new pads, you may need to rotate dorsum the piston a chip more than.
Spin In Bottom Bolt
Spin In Top Commodities
Hold Pin With Wrench
Spin in the two caliper bolts a few turns past hand in the counterclockwise direction (equally seen from the exterior of the car) to assistance preclude them from becoming cross threaded.
Tighten the two caliper bolts past turning them in the counterclockwise direction with the 12mm socket and a iii/8" drive ratchet to but past hand tight.
It would exist best to use a torque wrench to tighten the caliper bolts to the service manual specification of xv to 18 lb-ft of torque (or 20 to 20 Nm).
If the caliper bolts spin equally you are attempting to tighten them, hold them in place with the 17mm wrench.
Tighten Peak Bolt
Prophylactic Valve Cap
Bleeder Valve
If your restriction pedal has been feeling soft or spongy, the brake lines might incorporate a few air bubbles or some water. It would be all-time to drain the brake lines and replace the fluid with fresh brake fluid.
I adopt using the Allstar ALL11017 one person bleeder bottle that has a one-way check valve and a magnet to concord the bottle in place to the rotor. It makes bleeding brakes an piece of cake one person job.
Bank check out my Acura MDX Restriction Line Bleeding Guide for more info on the procedure of using the bleeder bottle.
The restriction fluid bleeder valve is located on the back side of the caliper only below the peak bolt. Information technology is protected by a black rubber cap.
Push On Rear Wheel
Spin On 4 Lug Nuts
Slightly Tighten Lug Nuts
Spin on the 4 lug nuts a few turns by hand in the clockwise direction to help preclude them from becoming cross threaded.
Slightly tighten the lug nuts in the clockwise direction with the lug nut wrench or a 21mm or 13/16" socket with a 1/ii" drive ratchet or breaker bar.
Lower Machine From Stands
Torque Lug Nuts
Rear Brake Pads Replaced
Continue progressively tightening the four lug nuts in a "criss-cross" or star pattern to about one/4 to i/3 turn by hand tight with the tire iron or a 21mm or xiii/16" socket and a 1/2" drive breaker bar or ratchet.
It would be all-time to apply a torque wrench to tighten the lug nuts to the owner'south manual specification of 80 to 108 lb-ft of torque (or 108-147 Nm).
Sit in the driver's seat and firmly push on the brake pedal a few times to restore the brake line pressure.
Check the level in the restriction fluid reservoir. If the level is depression, pour in some fresh DOT 3 restriction fluid until it reaches the "MAX" line.
It would be a proficient thought to check your driveway, parking spot or garage floor for drops of fresh restriction fluid over the next few days since it could betoken a leak from the caliper or bleeder valve.
I'd too recommend checking that the lug nuts are still tight later on your adjacent few trips.
Be sure to record the restriction pad change in your motorcar's service records.
For more than, bank check out all of my 2016-2021 Mazda MX-5 Miata DIY Repair & Maintenance Guides.
Source: https://paulstravelpictures.com/Mazda-MX-5-Miata-Rear-Brake-Pads-Replacement-Guide/index.html
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