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

536 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 symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure vehicle is off and the key fob is removed from the vehicle.
•Disconnect the battery before working on the brake system.
•Allow the vehicle to cool before working on brake components to avoid burns.

Symptoms

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

Diagnostic Steps

1
Inspect brake pads for wear and damage.
2
Check brake rotors for warping or scoring.
3
Examine brake calipers for proper function and any signs of sticking.
4
Inspect brake fluid level and condition.
5
Test the brake system for any error codes 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

•Jack
•Jack stands
•Lug wrench
•Socket set
•Brake cleaner
•Torque wrench

Parts Required

•Brake pads (if needed)
•Brake rotors (if needed)
•Brake calipers (if needed)

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Solution

1. Preparation

Gather tools and parts. Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Tools Required: Jack, jack stands, lug wrench, socket set, brake cleaner, torque wrench.
Safety Warnings: Ensure vehicle is off and the key fob is removed from the vehicle.

2. Remove Wheel

Loosen lug nuts slightly while the wheel is on the ground.
Use a jack to lift the vehicle and secure it with jack stands.
Fully remove the lug nuts and take off the wheel.

3. Inspect Brake Components

Brake Pads: Remove the caliper bolts with a socket wrench. Carefully slide the caliper off the rotor. Check the brake pads for thickness and uneven wear.
Brake Rotors: Inspect the rotor surface for grooves, scoring, or warping. Use a micrometer to measure rotor thickness if necessary.
Calipers: Check for any signs of sticking or fluid leakage around the caliper seals.

4. Replace Components (if necessary)

Brake Pads: If worn, replace with new pads. Ensure the correct pads are used for the Model S Plaid.
Brake Rotors: If damaged or below minimum thickness, replace rotors. Torque new rotors to manufacturer specifications (typically around 100-130 ft-lbs).
Calipers: If malfunctioning, replace calipers. Bleed the brake lines after replacement.

5. Reassemble

Reinstall the caliper and torque the bolts to specifications.
Place the wheel back on and hand-tighten the lug nuts.
Lower the vehicle off the jack stands and then torque the lug nuts to specifications (typically around 100-120 ft-lbs).

6. Test the System

Pump the brake pedal a few times to ensure the pads seat correctly.
Conduct a test drive to ensure the grinding noise has stopped and braking performance is restored.