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

497 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 in Tesla Model S Plaid (2021-present). 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 brakes and components to cool before handling after driving.

Symptoms

•Shaking or vibrations felt in the steering wheel or brake pedal during braking
•Pulsating brake pedal when applying brakes
•Uneven wear on brake pads or rotors
•Increased stopping distance
•Noise during braking (squeaking or grinding)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pad thickness to ensure they are not worn down beyond specified limits.
3
Examine suspension components (tie rods, control arms, bushings) for play or wear.
4
Perform a visual inspection for any loose or damaged hardware in the braking system.
5
Test drive the vehicle to replicate and assess the severity of the shaking.

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

•Socket set
•Torque wrench
•Dial indicator
•Micrometer
•Jack and jack stands

Parts Required

•Brake pads
•Brake rotors (if warped or worn)
•Brake caliper hardware (if damaged)

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pad thickness to ensure they are not worn down beyond specified limits.
3
Examine suspension components (tie rods, control arms, bushings) for play or wear.
4
Perform a visual inspection for any loose or damaged hardware in the braking system.
5
Test drive the vehicle to replicate and assess the severity of the shaking.

Solution

1. Preparation

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

2. Lift the Vehicle

Use a jack to lift the front or rear of the vehicle, depending on where the problem is suspected.
Secure the vehicle with jack stands for safety.

3. Remove Wheel

Using a socket set, remove the lug nuts and take off the wheel to access the brake assembly.

4. Inspect and Replace Brake Components

Inspect Brake Rotors:
- Measure rotor thickness using a micrometer; replace if below manufacturer's specifications.
- Check for warping with a dial indicator; replace if warped.
Replace Brake Pads:
- Remove caliper bolts with a wrench and slide off the caliper.
- Replace pads with new ones, ensuring they are correctly oriented.
- Reinstall caliper and torque bolts to specified values (typically around 25-30 ft-lbs).

5. Reassemble and Lower Vehicle

Reattach the wheel and hand-tighten the lug nuts.
Lower the vehicle and then torque the lug nuts in a crisscross pattern to the recommended torque (usually 100-110 ft-lbs).

6. Test Drive

Perform a test drive to ensure the shaking is resolved and that braking performance is restored.