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

medium

Severity

4 min read

607 words

Problem Statement

Learn how to diagnose and fix brake shaking 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 ensure the vehicle is securely supported on jack stands before working underneath.
•Allow the brakes to cool before inspection or maintenance to avoid burns.

Symptoms

•Shaking or vibrating sensation felt through the steering wheel or brake pedal during braking
•Unusual noises when brakes are applied (squeaking or grinding)
•Increased stopping distance
•Brake warning light illuminated on the dashboard
•Uneven wear on brake pads or rotors (if visually inspected)

Diagnostic Steps

1
Inspect the brake pads for uneven wear or damage.
2
Check the brake rotors for warping or scoring using a runout gauge.
3
Verify the condition of the brake calipers and ensure they are functioning smoothly.
4
Assess the brake fluid level and condition, looking for contamination.
5
Examine suspension components for wear or damage that may contribute to braking vibrations.

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

•Floor jack
•Jack stands
•Lug wrench
•Brake cleaner
•Torque wrench
•Caliper tool
•Runout gauge

Parts Required

•Brake pads
•Brake rotors (if warped or damaged)
•Brake fluid

Related Faults

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Symptoms

•Shaking or vibrating sensation felt through the steering wheel or brake pedal during braking

•Unusual noises when brakes are applied (squeaking or grinding)

•Increased stopping distance

•Brake warning light illuminated on the dashboard

•Uneven wear on brake pads or rotors (if visually inspected)

Diagnostic Steps

1
Inspect the brake pads for uneven wear or damage.
2
Check the brake rotors for warping or scoring using a runout gauge.
3
Verify the condition of the brake calipers and ensure they are functioning smoothly.
4
Assess the brake fluid level and condition, looking for contamination.
5
Examine suspension components for wear or damage that may contribute to braking vibrations.

Solution

1. Preparation

Tools Required: Floor jack, jack stands, lug wrench, brake cleaner, torque wrench, caliper tool.
Safely park the vehicle on a level surface and engage the parking brake.
Disconnect the negative battery terminal to ensure safety.

2. Inspect and Replace Brake Pads

Remove the wheel using a lug wrench.
Inspect the brake pads for uneven wear or damage.
If replacement is necessary:
- Remove the caliper bolts using a socket set.
- Slide the caliper off the rotor and secure it with a bungee cord.
- Remove the old brake pads and replace them with new ones, ensuring they are properly seated.
- Reattach the caliper and torque the bolts to manufacturer specifications.

3. Inspect and Resurface/Replace Rotors

Check the rotors for warping using a runout gauge.
If the rotors are warped beyond acceptable limits, they should be resurfaced or replaced:
- Remove the rotor by unscrewing the retaining screws (if applicable) and sliding it off the hub.
- For resurfacing, take the rotors to a machine shop; if replacing, install new rotors by reversing the removal steps and securing them properly.

4. Brake Fluid Inspection

Check the brake fluid reservoir for proper fluid level and clarity.
If the fluid appears contaminated or low:
- Remove the reservoir cap and siphon out the old fluid.
- Replace with manufacturer-recommended brake fluid, ensuring it is filled to the correct level.

5. Reassemble and Test

Reinstall the wheel and torque the lug nuts to the specified torque value.
Reconnect the negative battery terminal.
Lower the vehicle and perform a test drive to ensure the issue is resolved.