why is my Tesla Model S Plaid/Refresh (2021-present) shaking when I brake?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

589 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 shaking during 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

•Disconnect the 12V battery before working on the braking system.
•Ensure the vehicle is securely lifted and supported before working underneath.

Symptoms

•Shaking or vibration felt in the steering wheel or brake pedal when braking
•Increased brake pedal travel or softness
•Uneven or pulsating braking response
•Noise from the braking system, such as squealing or grinding
•Potential warning lights on the dashboard related to the braking system

Diagnostic Steps

1
Inspect brake pads for wear and unevenness.
2
Check brake rotors for warping or surface irregularities.
3
Examine suspension components for wear or damage, particularly control arms and bushings.
4
Test brake fluid for contamination or low levels.
5
Scan for any error codes using the Tesla diagnostics tool.
6
Verify tire condition and balance to rule out any related issues.

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
•Brake cleaner
•Measuring calipers
•OBD-II scanner

Parts Required

•Brake pads
•Brake rotors
•Brake fluid
•Suspension components (if necessary)

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Diagnostic Steps

1
Inspect brake pads for wear and unevenness.
2
Check brake rotors for warping or surface irregularities.
3
Examine suspension components for wear or damage, particularly control arms and bushings.
4
Test brake fluid for contamination or low levels.
5
Scan for any error codes using the Tesla diagnostics tool.
6
Verify tire condition and balance to rule out any related issues.

Solution

1. Preparation

Tools Required: Jack and jack stands, lug wrench, torque wrench, brake cleaner, measuring calipers, OBD-II scanner (for error codes).
Ensure the vehicle is on a flat surface and secure with wheel chocks.
Disconnect the 12V battery for safety.

2. Inspect and Replace Brake Pads

Sub-steps:
1. Remove the front and rear wheels using the lug wrench.
2. Inspect brake pads for uneven wear; replace if thickness is below manufacturer specifications (typically around 3mm).
3. If replacing, ensure correct orientation and fitment of new pads.
4. Reinstall wheels and torque to manufacturer specifications (usually between 100-120 ft-lbs).

3. Inspect and Replace Brake Rotors

Sub-steps:
1. Remove the brake caliper using the appropriate socket.
2. Take off the rotor; measure using calipers to check for warping (should be within manufacturer tolerance).
3. If warped, replace the rotor with a new one, ensuring proper alignment.
4. Clean rotor surface with brake cleaner before reinstallation.

4. Check Suspension Components

Sub-steps:
1. Inspect control arms and bushings for signs of wear or damage.
2. Replace any worn suspension components as needed.
3. Ensure all fasteners are tightened to the specified torque values.

5. Brake Fluid Check and Replacement

Sub-steps:
1. Check the brake fluid reservoir for proper level and clarity.
2. If cloudy or below the minimum level, bleed the brakes and replace with manufacturer-recommended brake fluid.
3. Ensure all brake bleeder screws are tightened after bleeding.

6. Final Assembly and Testing

Reinstall all components in reverse order, ensuring everything is tightened properly.
Reconnect the battery and perform a test drive to ensure the issue is resolved.