how to fix grinding brakes on my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

577 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 brakes on your Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is on a flat surface, engage the parking brake, and wear safety goggles.
•Ensure the vehicle is securely supported on jack stands before working underneath.
•Allow the brakes to cool before inspection or replacement.

Symptoms

•Grinding noise when applying brakes
•Vibration or pulsation in the brake pedal
•Reduced braking efficiency or longer stopping distances
•Brake warning light illuminated on the dashboard
•Increased brake dust accumulation on wheels

Diagnostic Steps

1
Inspect the brake pads for wear and thickness using a visual inspection.
2
Check the brake rotors for scoring, warping, or excessive wear.
3
Examine the brake calipers for proper operation and any signs of sticking or malfunction.
4
Measure the brake fluid level and condition; look for contamination or moisture.
5
Test the brake system by performing a stopping distance assessment in a safe area.

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
•Torque wrench
•Brake cleaner
•Safety goggles

Parts Required

•Brake pads
•Brake rotors

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Diagnostic Steps

1
Inspect the brake pads for wear and thickness using a visual inspection.
2
Check the brake rotors for scoring, warping, or excessive wear.
3
Examine the brake calipers for proper operation and any signs of sticking or malfunction.
4
Measure the brake fluid level and condition; look for contamination or moisture.
5
Test the brake system by performing a stopping distance assessment in a safe area.

Solution

1. Preparation

Tools Required: Jack and jack stands, lug wrench, torque wrench, brake cleaner, and safety goggles.
Safety Warnings: Ensure the vehicle is on a flat surface, engage the parking brake, and wear safety goggles.

2. Raise the Vehicle

Use the jack to lift the vehicle and secure it with jack stands.
Remove the wheels using the lug wrench for access to the brake components.

3. Remove Brake Components

Brake Pads:
- Remove the caliper bolts using the appropriate socket.
- Carefully slide the caliper off the rotor and suspend it with a bungee cord to avoid stress on the brake line.
- Remove the worn brake pads from the caliper bracket.
Rotors:
- Remove the rotor retaining screws if present and slide the rotor off the hub.

4. Inspect and Replace

Inspect:
- Check the brake pads for thickness (should be at least 3mm) and look for uneven wear.
- Inspect rotors for grooves or warping; a smooth surface is essential for optimal performance.
Replace:
- If worn, install new brake pads into the caliper bracket.
- If necessary, install new rotors, ensuring they are clean and free of any contaminants.

5. Reassemble and Torque

Reattach the caliper over the new pads and rotor.
Tighten caliper bolts to manufacturer specifications (typically around 25-30 Nm).
Reinstall the wheel and torque the lug nuts to the manufacturer’s specifications (usually 130 Nm).

6. Final Checks

Pump the brakes a few times to ensure proper pad seating.
Check the brake fluid level again and top off if necessary.
Lower the vehicle and perform a final visual inspection.