why does my Tesla Model S Plaid/Refresh (2021-present) make a grinding noise when stopping?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

554 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 stopping in Tesla Model S Plaid. 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 12V battery before working on the braking system to prevent electrical mishaps.
•Allow components to cool before working on them, especially if the vehicle has been driven recently.

Symptoms

•Grinding noise when braking or coming to a stop
•Reduced braking performance
•Vibration in the brake pedal
•Warning lights on the dashboard (if applicable)
•Uneven wear on brake pads

Diagnostic Steps

1
Inspect the brake pads for wear or damage.
2
Check the brake rotors for warping or scoring.
3
Examine the brake calipers for proper operation.
4
Inspect for debris or foreign objects lodged in the brake assembly.
5
Test the brake fluid level and condition.
6
Scan for any fault codes related to the braking system using an OBD-II scanner.

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

•Hydraulic jack
•Jack stands
•Socket set
•Brake cleaner
•Torque wrench

Parts Required

•Brake pads
•Brake rotors (if damaged)
•Brake caliper (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the brake pads for wear or damage.
2
Check the brake rotors for warping or scoring.
3
Examine the brake calipers for proper operation.
4
Inspect for debris or foreign objects lodged in the brake assembly.
5
Test the brake fluid level and condition.
6
Scan for any fault codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.

2. Raise the Vehicle

Use a hydraulic jack to lift the front or rear of the vehicle, depending on which brakes are making noise.
Secure with jack stands to ensure stability.

3. Remove Wheel

Using a socket set, remove the lug nuts and take off the wheel to access the braking components.

4. Inspect Brake Components

Brake Pads:
- Remove the brake caliper by unscrewing the caliper bolts.
- Inspect the brake pads for thickness; replace if worn below manufacturer specifications (typically less than 3mm).
Brake Rotors:
- Check the surface of the rotor for scoring or grooves. Replace if damaged.
- If warped, rotors may need machining or replacement.
Calipers:
- Ensure calipers move freely and are not stuck. If seized, replace or rebuild them.

5. Clean and Reassemble

Use brake cleaner to remove dust and debris from the brake components.
Apply a thin layer of anti-seize lubricant to the back of the brake pads (avoid contact with the friction surface).
Reinstall the caliper and ensure it is securely fastened.
Place the wheel back on, hand-tighten the lug nuts, then lower the vehicle and torque the lug nuts to manufacturer spec.

6. Test the Brakes

Before taking the vehicle on the road, press the brake pedal several times to seat the brake pads.
Perform a test drive to ensure the noise has been eliminated and brakes function correctly.