why does my Tesla Model S shake when I brake

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

479 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. 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 allow the vehicle to cool before working on the braking system.
•Ensure the vehicle is securely supported with jack stands before working underneath.

Symptoms

•Noticeable shaking or vibration felt through the steering wheel when braking
•Pulsation in the brake pedal
•Increased stopping distance
•Potential squeaking or grinding noises from brakes
•Uneven wear on brake pads or rotors

Diagnostic Steps

1
Inspect brake pads for wear and tear.
2
Check the condition of the brake rotors for warping or surface irregularities.
3
Examine brake calipers for proper function and any sticking.
4
Verify the wheel alignment and balance.
5
Scan for any error codes related to the braking system using a 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

•Socket set
•Torque wrench
•Brake cleaner
•Dial indicator

Parts Required

•Brake pads
•Brake rotors
•Brake fluid

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Solution

1. Preparation

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

2. Inspect and Replace Brake Pads

Sub-steps:
1. Remove the wheel using a socket set.
2. Inspect the brake pads for wear; replace if worn below manufacturer specifications.
3. If necessary, remove the caliper by unbolting it using a ratchet and appropriate socket.
4. Replace the brake pads and reassemble the caliper. Torque the caliper bolts to manufacturer specifications (usually around 25-30 ft-lbs).

3. Inspect and Resurface/Replace Brake Rotors

Sub-steps:
1. Remove the brake caliper and pads.
2. Check the rotors for warping using a dial indicator or by visual inspection.
3. If warped, either resurface the rotors according to specifications or replace them.
4. Clean the rotor surface with brake cleaner before reassembly.
5. Reinstall the caliper and pads, ensuring proper torque settings.

4. Check Wheel Alignment and Balance

Sub-steps:
1. Take the vehicle to a professional alignment shop.
2. Ensure that the wheels are balanced properly; incorrect balance can lead to vibrations during braking.

5. Final Assembly

Sub-steps:
1. Reinstall the wheel and hand-tighten the lug nuts.
2. Lower the vehicle and torque the lug nuts to the required specifications (typically 80-100 ft-lbs).