how to fix my Tesla Model S Plaid/Refresh (2021-present) that makes grinding noises when braking

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

569 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 noises when braking in Tesla Model S Plaid. 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

•Disconnect the 12V battery before starting work on the braking system.
•Ensure the vehicle is securely supported on jack stands before working underneath it.

Symptoms

•Grinding noise when braking
•Reduced braking performance
•Vibration in the brake pedal
•Warning lights on the dashboard (if applicable)
•Possible burning smell during braking
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotors for scoring or damage.
3
Examine brake calipers for proper operation and any sticking.
4
Inspect brake lines for leaks or damage.
5
Scan for any error codes using an OBD-II scanner.
6
Test 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

•Jack and jack stands
•Wheel chocks
•Lug wrench
•Socket set
•Torque wrench
•Brake cleaner
•Safety glasses
•Gloves

Parts Required

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

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Solution

1. Preparation

Tools Required: Jack and jack stands, wheel chocks, lug wrench, socket set, torque wrench, brake cleaner, safety glasses, gloves.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged. Disconnect the 12V battery to avoid any electrical issues.

2. Remove Wheel

Loosen the lug nuts slightly while the vehicle is on the ground.
Use a jack to lift the vehicle and securely place it on jack stands.
Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace Brake Components

Brake Pads:
- Remove the caliper bolts with a socket wrench.
- Carefully slide the caliper off the rotor. Support it with a bungee cord to avoid straining the brake line.
- Remove the old brake pads. Inspect for uneven wear; replace if they are worn below the manufacturer’s specification.
- Install new brake pads, ensuring they are oriented correctly.
Brake Rotors:
- Inspect the rotor surface for grooves or warping. A micrometer can be used to measure thickness.
- If damaged, remove the rotor by unscrewing the retaining screws (if equipped) and sliding it off the hub.
- Replace with new rotors if necessary.

4. Reassemble and Test

Reinstall the caliper over the new brake pads and torque the caliper bolts to the manufacturer's specifications (usually around 80-100 ft-lbs).
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and then torque the lug nuts to the manufacturer's specifications (usually about 100-120 ft-lbs).
Reconnect the battery and check brake fluid level, topping off as necessary.