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

591 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 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

•Always disconnect the battery before performing any work on the braking system to avoid electrical hazards.
•Allow brakes to cool before inspection.

Symptoms

•Grinding noise when braking
•Vibration or pulsation felt in the brake pedal
•Reduced braking performance
•Warning lights illuminated on the dashboard
•Increased stopping distance

Diagnostic Steps

1
Inspect the brake pads visually for wear and damage.
2
Check the brake rotors for scoring or warping using a micrometer.
3
Examine brake fluid levels and quality.
4
Listen for noise presence during a test drive in a safe environment.
5
Use an OBD-II scanner to check for any related error codes.

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 set
•Brake cleaner
•Torque wrench
•Micrometer

Parts Required

•Brake pads
•Brake rotors
•Brake grease

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Solution

1. Preparation

Tools Required:
- Jack and jack stands
- Lug wrench
- Socket set
- Brake cleaner
- Torque wrench
- Micrometer
Safety Warnings:
- Always disconnect the battery before performing any work on the braking system to avoid electrical hazards.
- Allow brakes to cool before inspection.

2. Remove Wheel

Use the lug wrench to loosen the lug nuts while the vehicle is on the ground.
Raise the vehicle with a jack and secure it with jack stands.
Fully remove the lug nuts and take off the wheel.

3. Inspect and Replace Brake Pads

Inspect Brake Pads:
- Check the thickness of the brake pads using a micrometer. If they are less than 3mm thick, they need replacement.
Remove Old Brake Pads:
- Remove the caliper bolts using a socket set and slide the caliper off the rotor.
- Take out the old brake pads from the caliper bracket.
Install New Brake Pads:
- Apply brake grease to the backing of the new pads (if applicable) to prevent noise.
- Insert the new brake pads into the caliper bracket.

4. Inspect and Replace Brake Rotors (if necessary)

Inspect Rotors:
- Measure rotor thickness and check for grooves or warping.
Remove Old Rotors:
- If rotors are damaged, remove the caliper bracket bolts and take off the caliper bracket, then remove the rotor.
Install New Rotors:
- Clean the new rotor with brake cleaner to remove any protective coating.
- Install the new rotor onto the hub.

5. Reassemble and Torque Components

Reattach the caliper bracket and torque the bolts to manufacturer specifications (typically 80-90 ft-lbs).
Slide the caliper over the new brake pads and secure it with caliper bolts, ensuring they are torqued properly.
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and then fully torque the lug nuts to the manufacturer specification.