my Tesla Model S Plaid/Refresh (2021-present) is shaking while braking, what causes this?

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

604 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 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 systems.
•Ensure the vehicle is securely supported on jack stands before working underneath.
•Ensure brake fluid doesn’t leak from the caliper when it’s removed.

Symptoms

•Shaking or vibration felt through the steering wheel or brake pedal
•Uneven brake wear or scoring on brake rotors
•Increased stopping distance or reduced braking effectiveness
•Noise during braking (squeaking or grinding)
•Dashboard warning lights may illuminate (e.g., brake warning light)

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a run-out gauge.
2
Check brake pads for wear and ensure they are evenly worn.
3
Examine brake calipers for proper operation and sticking.
4
Inspect suspension components (tie rods, control arms) for wear or damage.
5
Verify wheel alignment and balance to ensure proper handling.
6
Scan the vehicle for any related error codes using an OBD-II scanner.

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

•OBD-II scanner
•Lug wrench
•Jack
•Jack stands
•Socket set
•Torque wrench
•Run-out gauge
•Brake pad spreader
•Brake grease

Parts Required

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

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a run-out gauge.
2
Check brake pads for wear and ensure they are evenly worn.
3
Examine brake calipers for proper operation and sticking.
4
Inspect suspension components (tie rods, control arms) for wear or damage.
5
Verify wheel alignment and balance to ensure proper handling.
6
Scan the vehicle for any related error codes using an OBD-II scanner.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Wear safety gloves and goggles.

2. Remove the Wheel

Sub-steps:
- Loosen the lug nuts slightly while the vehicle is on the ground.
- Use a jack to lift the vehicle and secure it with jack stands.
- Remove the lug nuts completely and take off the wheel.
Tools Required: Lug wrench, jack, jack stands.

3. Inspect and Replace Brake Rotors (if warped)

Sub-steps:
- Use a run-out gauge to check the rotor for warping.
- If warped beyond specifications, remove the caliper by unbolting it and hanging it to avoid strain on the brake line.
- Remove the old rotor by unscrewing the retaining screws (if applicable) and sliding it off the hub.
- Install the new rotor, ensuring it is properly seated and secured with screws.
Tools Required: Socket set, torque wrench, run-out gauge.
Safety Warnings: Ensure brake fluid doesn’t leak from the caliper when it’s removed.

4. Replace Brake Pads (if necessary)

Sub-steps:
- Remove the brake pads from the caliper bracket.
- Inspect the caliper and bracket for any damage or issues.
- Apply brake grease to the backing of the new pads and install them into the bracket.
Tools Required: Brake pad spreader, brake grease.
Torque Values: Refer to the service manual for specific torque values for caliper bolts.

5. Reassemble Components

Sub-steps:
- Reattach the caliper over the new rotor and pads, ensuring it is secure.
- Replace the wheel and hand-tighten the lug nuts.
- Lower the vehicle and torque the lug nuts to the manufacturer’s specifications.
Tools Required: Torque wrench, lug wrench.