why is my Tesla Model S Original (2012-2020) making 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

533 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 use jack stands when working under a vehicle.
•Allow brakes to cool before inspection or repair to prevent burns.

Symptoms

•Grinding noise during braking
•Vibration felt in the brake pedal
•Reduced braking efficiency
•Warning light illuminated on the dashboard
•Unusual wear patterns on brake pads or rotors

Diagnostic Steps

1
Inspect brake pads visually for wear and damage.
2
Check the brake rotors for scoring or warping.
3
Use an OBD-II scanner to check for any related error codes.
4
Examine brake calipers for proper function and clearance.
5
Inspect brake fluid level and condition.

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 cleaner
•Brake pad spreader

Parts Required

•New brake pads
•New brake rotors
•Brake fluid

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Solution

1. Preparation

Gather tools and parts needed for repair.
Ensure the vehicle is on a flat surface and safely secured with jack stands.
Disconnect the negative battery terminal to prevent electrical issues.

2. Remove Wheel

Use a socket set to loosen the lug nuts.
Lift the vehicle using a jack and secure it on jack stands.
Remove the wheel to access the brake assembly.

3. Inspect and Replace Brake Pads

Remove the caliper bolts using a socket wrench.
Carefully slide the caliper off the rotor without stressing the brake line.
Remove the old brake pads from the caliper bracket.
Compare the old pads with new ones to ensure proper fit and thickness.
Install new brake pads in the caliper bracket, ensuring they are seated correctly.

4. Inspect and Replace Brake Rotors (if necessary)

If the rotors are damaged, remove them by unscrewing the retaining screws (if applicable) and sliding them off the hub.
Clean the hub surface with brake cleaner to ensure proper rotor seating.
Install new rotors by sliding them onto the hub and securing with screws.

5. Reassemble Braking System

Reattach the caliper over the new brake pads and rotor.
Torque the caliper bolts to the manufacturer's specifications (usually around 25-30 lb-ft).
Reinstall the wheel and torque lug nuts to the specified value (typically 100-110 lb-ft).

6. Final Checks

Reconnect the negative battery terminal.
Pump the brake pedal a few times to ensure proper pad seating.
Check brake fluid level and add fluid if necessary.