why is my Tesla Model 3 Original (2017-2023) making a grinding noise when braking?

Tesla Model 3 Highland (2024-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

560 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

Learn how to diagnose and fix grinding noise when braking in Tesla Model 3 (2017-2023). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the 12V battery before working on the brake system.
•Allow the brakes to cool before starting any repair work.

Symptoms

•Grinding noise when braking
•Reduced braking performance
•Vibration in the brake pedal
•Squeaking or squealing sounds when braking
•Brake warning light illuminated (if applicable)

Diagnostic Steps

1
Inspect brake pads for wear and damage using a visual inspection.
2
Check brake rotors for scoring or warping by measuring rotor thickness and surface condition.
3
Listen for any unusual sounds while applying brakes in a controlled environment.
4
Examine brake calipers for proper operation and any signs of sticking.
5
Inspect brake fluid level and condition to ensure it is at the proper level and not contaminated.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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 caliper tool
•Jack and jack stands
•Bungee cord

Parts Required

•Brake pads
•Brake rotors (if necessary)
•Brake fluid (if bleeding is required)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake pads for wear and damage using a visual inspection.
2
Check brake rotors for scoring or warping by measuring rotor thickness and surface condition.
3
Listen for any unusual sounds while applying brakes in a controlled environment.
4
Examine brake calipers for proper operation and any signs of sticking.
5
Inspect brake fluid level and condition to ensure it is at the proper level and not contaminated.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is on a flat surface and secured with wheel chocks.
Disconnect the 12V battery for safety.

2. Remove Wheel

Tools Required: Socket set, torque wrench
Loosen the lug nuts slightly while the vehicle is on the ground.
Raise the vehicle using a jack and secure it with jack stands.
Remove the wheel completely.

3. Inspect and Replace Brake Pads

Inspect the brake pads for excessive wear. If they are worn down to the indicator, proceed to replace.
Remove the caliper bolts using a socket wrench.
Carefully slide the caliper off the rotor. Suspend it using a bungee cord to avoid stress on the brake line.
Remove the old brake pads from the caliper bracket.
Install new brake pads in the same orientation as the old ones, ensuring they fit snugly.
Compress the caliper piston using a brake caliper tool to allow for the new pads.

4. Inspect and Replace Brake Rotors (if necessary)

If rotors are scored or warped, remove them by unscrewing the rotor retaining screws.
Clean the hub surface with a wire brush to ensure proper seating of the new rotor.
Install new rotors, ensuring they are secured properly.

5. Reassemble and Bleed Brakes

Reinstall the brake caliper over the new pads and secure it with the caliper bolts.
Replace the wheel and hand-tighten the lug nuts.
Lower the vehicle and torque the lug nuts to the manufacturer’s specifications.
Bleed the brake system if the brake fluid was low or if air was introduced during the repair.