why does my Tesla Model S Original (2012-2020) make a grinding noise when braking

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

548 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 S (2012-2020). 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

•Always disconnect the vehicle's battery before working on the braking system.
•Allow the vehicle to cool down before working on brake components.

Symptoms

•Grinding noise when applying brakes
•Decreased braking efficiency
•Vibration felt through the brake pedal
•Brake warning light illuminated on the dashboard
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotors for scoring or excessive wear.
3
Examine brake calipers for proper operation and any sticking.
4
Inspect brake fluid level and condition.
5
Scan the vehicle for any fault codes related to the braking system.
6
Check the brake lines for leaks or damage.

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

•Jack and jack stands
•Lug wrench
•Socket wrench
•Torque wrench

Parts Required

•Brake pads
•Brake rotors (if needed)
•Brake fluid (if needed)

Related Faults

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Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotors for scoring or excessive wear.
3
Examine brake calipers for proper operation and any sticking.
4
Inspect brake fluid level and condition.
5
Scan the vehicle for any fault codes related to the braking system.
6
Check the brake lines for leaks or damage.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Ensure the vehicle is powered off and unplugged from any charging source.

2. Remove Wheel

Tools: Jack and jack stands, lug wrench.
Loosen the lug nuts slightly without removing them.
Lift the vehicle with the jack and securely place jack stands under the vehicle.
Completely remove the lug nuts and take off the wheel.

3. Inspect and Replace Brake Pads

Remove the caliper bolts using a socket wrench.
Carefully slide the caliper off the rotor; support it to avoid stress on the brake line.
Inspect the brake pads for wear; replace them if they are worn down to the wear indicators.
Tools: Torque wrench for caliper bolts.
If replacing, install new brake pads by sliding them into place.

4. Check and Replace Rotors (if necessary)

Inspect rotors for grooves or warping. If damaged, replace them.
Remove the rotor by taking off the retaining screws or caliper bracket (if applicable).
Install new rotors, ensuring they are properly seated.
Torque the rotor screws to the manufacturer’s specifications.

5. Reassemble Components

Reinstall the caliper over the new brake pads.
Tighten caliper bolts to the specified torque setting.
Reinstall the wheel and tighten lug nuts in a star pattern to ensure even pressure.

6. Final Checks

Lower the vehicle and remove jack stands.
Pump the brake pedal a few times to ensure proper pad seating.
Check brake fluid level and top up if necessary.