why does my Tesla Model S Plaid/Refresh (2021-present) shake when I brake

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

526 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 (2021-present). 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 battery before working on electrical systems.
•Allow the vehicle to cool before working on brake components to avoid burns.

Symptoms

•Shaking or vibration in the steering wheel when braking
•Pulsation felt through the brake pedal
•Uneven wear on brake pads or rotors
•Increased stopping distance
•Noises such as squealing or grinding when braking

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear.
2
Check brake pads for thickness and even wear.
3
Examine suspension components for damage (e.g., control arms, bushings).
4
Test tire balance and alignment.
5
Scan for any error codes related to the braking system using the Tesla diagnostic tool.

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

•Lug wrench
•Brake caliper tool
•Torque wrench
•Runout gauge
•OBD-II scanner

Parts Required

•New brake rotors
•New brake pads
•Suspension components (if necessary)

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Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a level surface and the parking brake is engaged.
Disconnect the battery to avoid any electrical issues during service.

2. Inspect and Replace Brake Rotors

Sub-steps:
- Remove the wheel using a lug wrench.
- Use a caliper tool to remove the caliper and hang it securely (avoid strain on the brake line).
- Remove the rotor by unscrewing the retaining screws (if applicable) and gently sliding it off the hub.
- Inspection: Check for warping using a runout gauge. Replace if warped beyond specifications (typically 0.003 inches).
- Install new rotors, ensuring they are clean and free from grease.
- Reattach the caliper and wheel, then torque the lug nuts to manufacturer's specifications (around 129 lb-ft for Tesla Model S).

3. Inspect and Replace Brake Pads

Sub-steps:
- Remove the caliper as described above.
- Check the brake pads for wear indicators. If they are less than 3 mm thick, replace them.
- Remove old pads and clean caliper surfaces.
- Install new pads, ensuring they are seated properly.
- Reattach the caliper and wheel, then torque the lug nuts.

4. Suspension Inspection

Sub-steps:
- Visually inspect control arms, bushings, and strut mounts for wear or damage.
- If any components are damaged, replace them according to manufacturer specifications.
- Ensure all bolts are torqued to specified values.

5. Tire Inspection

Sub-steps:
- Check tire pressure and adjust to recommended settings.
- Inspect tires for uneven wear or damage. Replace if necessary.
- Balance and align tires as needed.