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Home/Cars/Mazda/CX-5/KF (2017-2024)/Why does my 2019 Mazda CX-5 KF make a grinding noise when braking?

Why does my 2019 Mazda CX-5 KF make a grinding noise when braking?

Mazda CX-5 KF (2017-2024)

Severity: highDifficulty: medium2-4 hours
3 min read
472 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Discover the causes of grinding noise when braking in your 2019 Mazda CX-5 KF. Follow our detailed diagnostic steps for effective solutions.

Component
Brakes
Repair Time
2-4 hours

Symptoms

  • •Grinding noise when applying brakes
  • •Possible vibrations in the brake pedal
  • •Reduced braking efficiency

Diagnostic Steps

  1. 1Inspect the brake pads and rotors through the wheel spokes
  2. 2Remove the wheel using a socket set and inspect the thickness of the brake pads
  3. 3Check the surface of the rotors for scoring, grooves, or excessive wear
  4. 4Inspect the calipers for proper operation and lubrication
  5. 5Listen closely to pinpoint the source of the grinding noise while applying brakes

Solution

A grinding noise when braking in your 2019 Mazda CX-5 KF can be indicative of several issues, primarily related to the brake system. Below are detailed steps to diagnose and resolve the problem.

Tools Required:

  • Socket set (for wheel removal)
  • Torque wrench (for reinstallation of lug nuts)
  • Brake pad gauge (to measure pad thickness)
  • Micrometer (to measure rotor thickness)
  • Brake cleaner (for cleaning components)
  • Lubricant (for caliper pins)
  • Jack and jack stands (for safely lifting the vehicle)

Parts/Components That May Need Replacement:

  • Brake Pads: If worn down or damaged.
  • Brake Rotors: If scored or below minimum thickness.
  • Brake Calipers: If they are sticking or damaged.
  • Brake Hardware Kit: Includes shims, clips, and other necessary components.

Estimated Time for Repair:

  • Brake Pad Replacement: 1-2 hours
  • Brake Rotor Replacement: 2-3 hours (if necessary)
  • Caliper Replacement: 1-2 hours (if necessary)

Safety Warnings:

  • Always ensure the vehicle is securely lifted and supported on jack stands before working underneath it.
  • Wear safety glasses and gloves to protect against debris and sharp edges.
  • Properly torque lug nuts to the manufacturer’s specifications upon reinstallation to avoid wheel detachment.

Conclusion:

If the grinding noise persists after replacing the brake pads and/or rotors, further investigation may be necessary, including checking the brake fluid level and condition, as well as inspecting the brake lines for leaks or damage. If you are not comfortable performing these inspections or repairs, it is advisable to seek assistance from a qualified automotive technician.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • Socket set
  • Torque wrench
  • Brake pad gauge
  • Micrometer
  • Brake cleaner

Additional Information

Component

Brakes

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

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