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

532 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

•Disconnect the battery before working on electrical systems.
•Allow brake components to cool before touching them after driving.

Symptoms

•Steering wheel vibrates during braking
•Pulsation felt through the brake pedal
•Uneven brake wear observed on brake pads
•Potential noise from the braking system (grinding or squeaking)
•Vehicle pulls to one side during braking

Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for uneven wear or damage.
3
Examine suspension components (control arms, bushings) for looseness or wear.
4
Verify wheel alignment and balance.
5
Scan for any error codes related to the braking system 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
•Dial indicator
•Lug wrench
•Torque wrench
•Jack and jack stands

Parts Required

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

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Diagnostic Steps

1
Inspect brake rotors for warping or uneven wear using a dial indicator.
2
Check brake pads for uneven wear or damage.
3
Examine suspension components (control arms, bushings) for looseness or wear.
4
Verify wheel alignment and balance.
5
Scan for any error codes related to the braking system using an OBD-II scanner.

Solution

1. Preparation

Gather tools and equipment: jack stands, lug wrench, torque wrench, dial indicator, and OBD-II scanner.
Ensure the vehicle is on a flat surface and the parking brake is engaged.
Disconnect the 12V battery to ensure safety while working on the braking system.

2. Inspect and Replace Brake Rotors

Sub-step 1: Remove the wheel using a lug wrench.
Sub-step 2: Inspect the brake rotor using a dial indicator; if warping is detected (beyond manufacturer specs), proceed to replace.
Sub-step 3: Remove the caliper bolts and lift the caliper away from the rotor. Support the caliper with a bungee cord to avoid straining the brake line.
Sub-step 4: Remove the rotor from the hub. If the rotor is stuck, tap it gently with a rubber mallet.
Sub-step 5: Install the new rotor; ensure it is seated fully against the hub.
Sub-step 6: Reinstall the caliper and torque bolts to manufacturer's specification (typically around 85-90 ft-lbs).

3. Inspect and Replace Brake Pads

Sub-step 1: Remove the brake pads from the caliper bracket.
Sub-step 2: Inspect for uneven wear; if necessary, replace with high-quality brake pads.
Sub-step 3: Apply brake grease to the backing of the new pads to prevent squeaking.
Sub-step 4: Reinstall the brake pads and caliper.

4. Suspension Component Inspection

Sub-step 1: Check control arms and bushings for any signs of wear or excessive play.
Sub-step 2: If any components are damaged, replace them as needed.

5. Wheel Alignment and Balance

Sub-step 1: After reassembling, take the vehicle for a wheel alignment and balance to ensure proper handling.