my Tesla Model S Plaid/Refresh (2021-present) makes 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

472 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 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 battery before working on electrical systems.
•Allow the brake components to cool before handling to avoid burns.

Symptoms

•Grinding noise when applying brakes
•Vibration or pulsation in the brake pedal
•Reduced braking performance
•Warning light on the dashboard (if applicable)
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotor condition for scoring or warping.
3
Measure brake fluid level and inspect for contamination.
4
Examine brake calipers for proper operation and any signs of sticking.
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 cleaner
•Brake lubricant

Parts Required

•Brake pads (if worn)
•Brake rotors (if damaged)

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Diagnostic Steps

1
Inspect brake pads for wear and tear using a visual inspection.
2
Check brake rotor condition for scoring or warping.
3
Measure brake fluid level and inspect for contamination.
4
Examine brake calipers for proper operation and any signs of sticking.
5
Use an OBD-II scanner to check for any related error codes.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Disconnect the battery to ensure safety.

2. Remove Wheel

Use a jack to lift the vehicle and secure it with jack stands.
Remove the lug nuts using a socket wrench and take off the wheel.

3. Inspect Brake Components

Brake Pads:
- Remove the caliper by unscrewing the mounting bolts.
- Check the thickness of the brake pads; replace if below 3 mm.
Brake Rotors:
- Inspect the rotors for any grooves, cracks, or warping. If damaged, replace the rotors.

4. Replace Brake Pads (if necessary)

If pads are worn, remove the old pads from the caliper bracket.
Clean the caliper bracket and install new brake pads, ensuring they are properly seated.
Apply brake lubricant to the backing of the pads to prevent noise.

5. Reassemble Braking System

Reinstall the caliper over the new brake pads and torque the bolts to manufacturer specifications (typically around 25-30 ft-lbs).
Reinstall the wheel and torque lug nuts to manufacturer specifications (usually 100-110 ft-lbs).

6. Reconnect Battery and Test

Reconnect the battery.
Perform a test drive to ensure the grinding noise has been resolved and brakes function properly.