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

452 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 battery when working on electrical systems.
•Allow the brakes to cool before inspection or maintenance.

Symptoms

•Grinding noise during braking
•Vibration in the brake pedal
•Reduced braking efficiency
•Warning lights on the dashboard related to the braking system
•Uneven wear on brake pads

Diagnostic Steps

1
Inspect brake pads for wear and damage.
2
Check brake rotors for scoring or warping.
3
Examine brake calipers for proper operation.
4
Inspect brake fluid level and condition.
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
•Socket set
•Torque wrench
•Brake pad spreader tool
•OBD-II scanner

Parts Required

•Brake pads
•Brake rotors (if necessary)
•Brake grease

Related Faults

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Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface with the parking brake engaged.
Wear safety gloves and goggles.

2. Raise the Vehicle

Use a jack to lift the vehicle and secure it with jack stands.
Remove the appropriate wheel to access the brake components.

3. Inspect and Replace Brake Pads

Inspection:
- Remove the caliper bolts using a socket set.
- Carefully slide the caliper off the rotor.
- Inspect the brake pads for thickness; replace if below 3mm.
Replacement:
- Remove the old brake pads from the caliper bracket.
- Install new brake pads, ensuring they are seated correctly.
- Apply brake grease on the backing of the pads to reduce noise.

4. Inspect and Replace Rotors (if necessary)

Inspection:
- Check the rotor surface for scoring or warping.
- Measure rotor thickness; replace if below minimum specifications.
Replacement:
- Remove the rotor by unscrewing the retaining screws (if applicable).
- Clean the hub surface, then install the new rotor.
- Reinstall caliper over the new rotor.

5. Reassemble and Lower the Vehicle

Reattach the caliper with the bolts and torque to the manufacturer specifications.
Reinstall the wheel and torque lug nuts to specification.
Lower the vehicle back to the ground.