my Tesla Model S Plaid/Refresh (2021-present) shakes when braking what's causing it

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

561 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 brake shaking issues 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

•Always disconnect the battery before working on electrical components.
•Allow the vehicle to cool before touching brake components.

Symptoms

•Shaking or vibration felt in the steering wheel during braking
•Pulsation in the brake pedal
•Increased stopping distance
•Potential squeaking or grinding noises when braking
•Uneven wear on brake pads or rotors

Diagnostic Steps

1
Inspect brake rotors for warping or scoring using a run-out gauge.
2
Check brake pads for uneven wear and proper thickness.
3
Verify brake calipers are functioning correctly and not sticking.
4
Examine suspension components for wear or damage that could affect braking stability.
5
Scan the vehicle for any error 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

•OBD-II scanner
•Jack and jack stands
•Socket set
•Run-out gauge
•Torque wrench
•Wire brush

Parts Required

•Brake pads
•Brake rotors (if warped or worn)
•Brake caliper (if malfunctioning)

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Diagnostic Steps

1
Inspect brake rotors for warping or scoring using a run-out gauge.
2
Check brake pads for uneven wear and proper thickness.
3
Verify brake calipers are functioning correctly and not sticking.
4
Examine suspension components for wear or damage that could affect braking stability.
5
Scan the vehicle for any error codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Park the vehicle on a flat surface and engage the parking brake.
Wear safety glasses and gloves.

2. Lift the Vehicle

Use a jack to lift the front or rear end of the vehicle, depending on where the braking issue is suspected.
Secure with jack stands to ensure safety.

3. Remove the Wheel

Use a socket set to remove the lug nuts and take off the wheel.
Keep the lug nuts in a safe place for reinstallation.

4. Inspect Brake Components

Brake Rotors:
- Measure rotor thickness and check for warping using a run-out gauge.
- If warped beyond specifications (usually more than 0.002 inches), replace the rotors.
Brake Pads:
- Inspect for uneven wear; replace if worn down below the manufacturer's recommended thickness.
Brake Calipers:
- Check for proper operation by pressing the brake pedal and observing caliper movement. Replace if they are sticking.

5. Replace Brake Pads and Rotors (if necessary)

Rotors:
- Clean the hub surface with a wire brush to remove rust or debris.
- Install new rotors, ensuring to torque the retaining hardware to the manufacturer's specifications (usually around 80-100 ft-lbs).
Brake Pads:
- Install new brake pads, following proper orientation and ensuring they are seated correctly.
- Reattach the caliper and torque bolts to the manufacturer’s specifications.

6. Reassemble and Lower Vehicle

Reinstall the wheel and torque lug nuts to the specified value (typically around 100-120 ft-lbs).
Remove jack stands and lower the vehicle.

7. Brake System Check

Pump the brake pedal several times to seat the pads against the rotors before driving.