how to fix grinding brakes on my Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

527 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 grinding brakes on your Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, 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 components.
•Allow the brakes to cool before handling to avoid burns.

Symptoms

•Grinding or squeaking noise when the brakes are applied
•Reduced braking efficiency
•Vibration or pulsation through the brake pedal
•Warning light illuminated on the dashboard
•Brake dust accumulation on the wheels

Diagnostic Steps

1
Inspect brake pads for wear and thickness using visual inspection.
2
Measure rotor thickness with a micrometer to determine if they are within specification.
3
Check for any visible damage on the brake rotors, such as scoring or warping.
4
Inspect calipers for proper operation and any signs of leakage.
5
Check brake fluid level and condition in the reservoir.

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
•Socket set
•Torque wrench
•Brake cleaner
•Bungee cord

Parts Required

•Brake pads
•Brake rotors

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Diagnostic Steps

1
Inspect brake pads for wear and thickness using visual inspection.
2
Measure rotor thickness with a micrometer to determine if they are within specification.
3
Check for any visible damage on the brake rotors, such as scoring or warping.
4
Inspect calipers for proper operation and any signs of leakage.
5
Check brake fluid level and condition in the reservoir.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and engage the parking brake.
Disconnect the battery for safety.

2. Remove Wheel

Using a jack, lift the vehicle and securely place it on jack stands.
Use a lug wrench to remove the wheel lug nuts and take off the wheel.

3. Inspect and Remove Brake Components

Remove the caliper bolts using a socket set.
Carefully slide the caliper off the rotor and hang it using a bungee cord to avoid straining the brake line.
Remove the old brake pads from the caliper bracket.
If the rotors need replacement, remove the rotor by unscrewing the retaining screws (if applicable) and sliding it off the hub.

4. Install New Brake Parts

If replacing brake pads, install new pads into the caliper bracket.
If replacing rotors, clean the new rotor with brake cleaner before installation.
Slide the new rotor onto the hub and secure it with retaining screws.
Reinstall the caliper over the new pads and rotor, tightening the caliper bolts to the manufacturer's specified torque (typically around 30-40 lb-ft; check the service manual for exact specifications).

5. Reassemble and Lower Vehicle

Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle off the jack stands and tighten the lug nuts to the proper torque (usually around 80-100 lb-ft).
Reconnect the battery.