what causes my Tesla Model S Plaid/Refresh (2021-present) to shake when I brake

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

495 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

Discover how to diagnose and fix shaking during braking in Tesla Model S Plaid (2021-present). Step-by-step guide with symptoms, diagnostics, and solutions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always disconnect the battery before working on electrical systems.
•Allow the vehicle to cool down before working on brake components to prevent burns.

Symptoms

•Shaking or vibration in the steering wheel or brake pedal during braking
•Increased stopping distance
•Uneven wear on brake pads or rotors
•Noises such as squeaking or grinding when braking
•Warning lights illuminated on the dashboard (if applicable)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven surfaces.
2
Check brake pads for wear and proper installation.
3
Examine the brake caliper functionality and movement.
4
Inspect suspension components for wear or damage.
5
Scan for error codes using an OBD-II scanner to check for any electronic issues.
6
Test brake fluid quality and levels.

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
•Lug wrench
•Torque wrench
•OBD-II scanner
•Dial indicator gauge

Parts Required

•Brake rotors (if warped)
•Brake pads (if worn)
•Brake fluid (if needed)

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven surfaces.
2
Check brake pads for wear and proper installation.
3
Examine the brake caliper functionality and movement.
4
Inspect suspension components for wear or damage.
5
Scan for error codes using an OBD-II scanner to check for any electronic issues.
6
Test brake fluid quality and levels.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a flat surface and level.
Disconnect the battery to prevent any electrical issues while working.

2. Inspect and Replace Brake Rotors

Sub-steps:
1. Lift the vehicle using a jack and secure it on jack stands.
2. Remove the wheel to access the brake assembly.
3. Use a dial indicator gauge to measure rotor runout. If warping exceeds manufacturer's specifications, replace the rotors.
4. If replacing, unbolt the caliper and bracket, then remove the rotor.
5. Install new rotors, ensuring they are properly aligned and torqued to manufacturer's specifications (typically around 80-100 ft-lbs).

3. Inspect and Replace Brake Pads

Sub-steps:
1. Check the thickness of the brake pads. Replace if they are below the manufacturer's recommended minimum thickness.
2. Remove the caliper and old pads. Clean the caliper bracket and sliding pins.
3. Install new brake pads ensuring they are seated properly.
4. Reinstall the caliper and torque bolts to manufacturer's specifications (typically around 25-35 ft-lbs).

4. Check Caliper and Suspension Components

Sub-steps:
1. Inspect caliper for proper operation; ensure it moves freely and doesn't stick.
2. Inspect suspension components such as control arms, tie rods, and bushings for signs of wear or damage. Replace any faulty parts as necessary.