why is my Tesla Model S Plaid/Refresh (2021-present) shaking when I brake

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

505 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 when 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 brake components.
•Allow the vehicle to cool before beginning any work on brakes to avoid burns.

Symptoms

•Vehicle shakes or vibrates when braking
•Pulsating brake pedal feel
•Increased stopping distance
•Noise during braking (grinding or squeaking)
•Steering wheel vibration during braking

Diagnostic Steps

1
Inspect brake pads for wear and unevenness.
2
Check brake rotors for warping or damage using a run-out gauge.
3
Examine brake calipers for proper operation and alignment.
4
Inspect suspension components, including control arms and bushings, for wear.
5
Verify tire condition and balance to rule out any related issues.

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

•Jack and jack stands
•Lug wrench
•Torque wrench
•Run-out gauge
•Brake cleaner
•Basic hand tools (sockets, ratchets)

Parts Required

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

Related Faults

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Diagnostic Steps

1
Inspect brake pads for wear and unevenness.
2
Check brake rotors for warping or damage using a run-out gauge.
3
Examine brake calipers for proper operation and alignment.
4
Inspect suspension components, including control arms and bushings, for wear.
5
Verify tire condition and balance to rule out any related issues.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and secured with wheel chocks.
Disconnect the negative battery terminal for safety.

2. Inspect and Replace Brake Pads

Sub-steps:
1. Remove the wheel to access the brake assembly.
2. Inspect brake pads for thickness; replace if worn below manufacturer specifications (usually 3mm).
3. If replacing, remove the caliper bolts and slide the caliper off.
4. Replace with new brake pads, ensuring they are properly seated.
5. Reinstall the caliper and torque bolts to the manufacturer's specified value (typically around 25-30 Nm).

3. Check and Resurface/Replace Brake Rotors

Sub-steps:
1. Use a run-out gauge to measure rotor thickness and check for warping.
2. If warped beyond acceptable limits (usually more than 0.002 inches), remove the rotor.
3. Resurface rotors if within tolerable limits or replace with new ones if necessary.
4. Ensure rotors are clean and free of debris before reinstalling.
5. Torque rotor bolts to the manufacturer’s specified value (usually around 80-100 Nm).

4. Inspect Suspension Components

Sub-steps:
1. Visually inspect control arms, bushings, and tie rods for signs of wear or damage.
2. Replace any worn or damaged components with OEM parts.
3. Ensure all bolts are torqued to the manufacturer's specifications.

5. Tire Inspection and Balancing

Sub-steps:
1. Check tires for wear and proper inflation; replace if necessary.
2. Perform a tire balance check and adjust as needed to eliminate vibrations.