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Mazda CX-5 Rear Disc Brake Pads Replacement Guide
How to change the rear disc brake pads on a 1st generation 2012-2016 Mazda CX-5 SUV with photo illustrated steps.

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2013 CX-5 Rear Wheel
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Slightly Loosen Lug Nuts
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Raise Vehicle & Remove Lug Nuts

This automotive maintenance tutorial was specifically written to assist owners of the first generation (2012, 2013, 2014, 2015 & the refreshed 2016 model year) Mazda CX-5 SUV in changing the rear disc brake pads and lubricating the caliper slider pins.

Owners of other Mazda vehicles such as the Mazda 2, Mazda 3, Mazda 5, Mazda 6, CX-7, CX-9, and the MX-5 Miata may also find these DIY instructions to be helpful.

The tools needed to complete this procedure include a lug nut wrench, a floor jack, two jack stands, a 14mm socket with a 3/8" drive ratcheting wrench, a caliper piston tool (Lisle 28600) and a tube of synthetic brake parts lubricant grease.

A few compatible sets of new rear brake pads with their part numbers include the following: Raybestos PGD1624C, ACDelco 17D1624CH, Power Stop 16-1624, TRW Automotive TPC1624, Bendix D1624, Monroe GX1624, Centric 105.16240, Carquest Wearever Gold Ceramic GNAD1624, Wagner QC1624 and Bosch BC1624.

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5 Lug Nuts Removed
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Caliper, Bracket, Rotor
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Rear Brake Caliper
The first few steps are to park the vehicle on a level surface, turn off the engine and make sure that the emergency / parking brake is not engaged.

Chock both sides of the front wheels to prevent the SUV from moving while you are replacing the rear brake pads.

Slightly loosen the 5 lug nuts on the rear wheel by turning them in the counterclockwise direction with the tire iron.

I prefer to work on one side of the car at a time to keep three wheels on the ground for extra safety.

Raise the rear of the SUV with the floor jack and securely support it with the two jack stands.

Spin off the 5 lug nuts in the counterclockwise direction and set them aside in a safe place.

Pull off the front wheel and set it aside in a safe place.

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Loosen Lower Caliper Bolt
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Socket Won't Fit - Top Bolt
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Spin Out Lower 14mm Bolt
The rear brake caliper is held in place to the bracket by two bolts on the back side of the caliper.

Loosen the lower caliper bolt by turning it clockwise (as seen from the outside of the vehicle) with the 14mm socket and 3/8" drive ratcheting wrench.

I had trouble getting my 14mm socket over the upper caliper bolt, so I used a standard 14mm open ended wrench.

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14mm Wrench - Top Bolt
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Remove Upper Caliper Bolt
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Two Caliper Bolts Removed
Loosen the upper caliper bolt by turning it clockwise (as seen from the outside of the vehicle) with the 14mm wrench.

Spin out the two caliper bolts and set them aside in a safe place.

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Pull Off Rear Brake Caliper
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Screw In Type Caliper Piston
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Rest Caliper On Suspension
Pull the rear brake caliper out of the bracket and off the old pads.

The Mazda CX-5 is equipped with screw-in type rear caliper pistons that require a special tool to turn them back or you may be able to use a pair of needle nose pliers. Do not use a "C" clamp to try and compress back the pistons.

Rest the caliper on the rear suspension or suspend it from the spring with a bungee cord.

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Remove Old Brake Pads
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Wear Bars - Bottom Both Pads
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Replace Pad Abutment Clips
Pull the old brake pads out of the bracket.

Make a mental note of where the wear indicator bars or "squeal" bars are situated on the old pads.

On this 2013 CX-5, the wear bars were located at the bottom of both pads.

I recommend buying the Raybestos PGD1624C brake pads since they have great reviews on Amazon.

If your new set of rear brake pads includes replacement brake hardware, pull the old pad abutment or "anti-rattle" clips out of the top and bottom of the bracket before pushing the new ones in to place.

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Lubricate Caliper Slider Pins
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Caliper Piston Tool
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Attach To Ratcheting Wrench
In order for the brake caliper to operate smoothly, the two caliper slider pins or "guide" pins in the bracket need to be well lubricated.

Pull the upper and lower caliper slider pins out of their rubber dust boots and apply a thin layer of brake parts lubricant grease to each before pushing them back in.

Find the side of the piston tool that has the best grip on the face of the caliper piston. It should be the side with four nubs or pegs with one located at each corner of the square edge.

Attach a brake caliper piston tool (such as the Lisle # 28600) to an extension bar and a 3/8" drive ratcheting wrench.



 

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Twist Off Brake Fluid Cap
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Turn Back Caliper Piston
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Twist On Brake Fluid Cap
Move to the right rear area of the engine bay and twist off the brake fluid reservoir cap in the counterclockwise direction.

Removing the reservoir cap will allow the brake fluid to more easily travel back through the lines when you compress the piston.

Attach the piston tool to the outer face of the piston and slowly turn it back in the clockwise direction to retract the piston inside the caliper body.

Check the level in the reservoir while you are turning back the piston to make sure it doesn't over flow.

Clean up any spilled brake fluid immediately since brake fluid can easily damaged painted surfaces.

Try to avoid pinching or otherwise damaging the rubber dust boot surrounding the piston.

Replace the reservoir cap as soon as possible since brake fluid is hygroscopic (absorbs moisture from the air).

Thoroughly clean off the brake rotor, caliper bracket, brake caliper assembly and the lug nut studs with brake parts cleaner spray. Do not use compressed air or blow with your mouth to clean off the brake parts since breathing in brake dust can be harmful to your health. Brake dust can be carcinogenic (cancer causing) if inhaled.

Apply a thin layer of brake parts lubricant to any area where there is metal to metal contact such as the outer lip of the caliper piston. Do not apply caliper grease to the friction surface of the new pads.

If your CX-5 previously exhibited shuddering, pulsations, or vibrations in the rear end during braking, you may need to have your rotors "turned" (resurfaced) or just replace them with brand new rotors. If this is the first rear brake job on your SUV and the rotors appear to be in excellent condition, you should be able to just replace the pads with great results.

To remove the existing rotors and install new ones, remove the two bolts on the rear of the caliper bracket that attach it to the steering knuckle. Then loosen the old rotor with a rubber mallet, pull it off, and slide the new one in its place.

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Install New Outer Brake Pad
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Wear Bar - Bottom Both Pads
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Push Pads Against Rotor
Install the new brake pads in to the bracket with the wear bars situated at the bottom of both brake pads.

Push the new brake pads together until they are flush against the rotor.

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Lower Caliper Over Pads
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Replace Bottom Caliper Bolt
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Spin In Top 14mm Bolt
Lower the caliper over the new pads and in to the bracket.

If the caliper won't fit over the new pads, you may need to turn back the piston a bit further.

Spin in the two caliper bolts in the counterclockwise direction (as seen from the outside of the vehicle).

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Tighten Bolt Counterclockwise
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Torque To 20-25 lb-ft
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Rubber Valve Cap
Tighten the two 14mm caliper bolts in the counterclockwise direction (as seen from the outside of the SUV) to just past hand tight or about 20 to 25 lb-ft of torque.

Double check that the two caliper bolts are tight before moving on to the next steps.

If your brake pedal previously felt soft or spongy, the brake fluid may be contaminated with water or the brake lines may contain some air bubbles.

It would be best to bleed the brake lines at this time in order to flush out the old fluid and replace it with fresh DOT 3 brake fluid. For more on this topic, check out my Brake Line Fluid Bleeding With An Assistant DIY Guide or alternatively the Brake Line Fluid Bleeding With A Power Bleeder Guide.

The brake fluid bleeder valve is located underneath a rubber cap on the back side of the caliper just below the top caliper bolt.

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Brake Fluid Bleeder Valve
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Spin On 5 Lug Nuts
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Slightly Tighten Lug Nuts
Replace the rear wheel and spin on the 5 lug nuts in the clockwise direction.

If you have a 13/16" socket, you can use that to quickly spin on the lug nuts.

Slightly tighten the lug nuts in a "star" or "criss cross" pattern with the tire iron by turning them in the clockwise direction.

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Lower SUV From Stands
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Torque To 80-108 lb-ft
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Rear Brake Pads Replaced
Carefully lower the SUV from the jack stands by using the floor jack.

Continue tightening the lug nuts in the clockwise direction to about 1/4 to 1/3 turn past hand tight.

It would be best to use a torque wrench to make sure that the lug nuts are properly tightened. The CX-5 owner's manual specifies that the lug nuts should be tightened to between 80 to 108 lb-ft of torque.

Sit in the driver's seat of the vehicle and pump the brake pedal a few times to restore the brake line pressure. Check the brake fluid in the reservoir and verify that it is at the proper level. If it is low, add some DOT 3 fluid.

To break in your new rear brake pads, just drive normally for the first few hundred miles while trying to avoid any hard or "panic" stops which may glaze over the new pads and cause them to be noisy and not perform as well.

It's also a good idea to regularly check your driveway or garage for drops of brake fluid which may indicate a leak, check the brake fluid level in the reservoir, and also verify that the lug nuts are still tight.

For more, check out all of my Mazda CX-5 DIY Repair & Maintenance Guides.
 

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