why is my Tesla Model S Original (2012-2020) making a noise when I hit the brakes

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

528 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 noise issues in 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

•Always disconnect the battery before working on the braking system.
•Allow brakes to cool before inspection if the vehicle has been driven recently.

Symptoms

•Grinding or squeaking noise when brakes are applied
•Vibration or pulsation felt through the brake pedal
•Reduced braking performance or responsiveness
•Brake warning light illuminated on the dashboard
•Increased stopping distance

Diagnostic Steps

1
Inspect the brake pads for wear and damage.
2
Check brake rotors for scoring, warping, or corrosion.
3
Examine brake calipers for proper operation and any signs of fluid leaks.
4
Inspect brake fluid level and condition in the master cylinder reservoir.
5
Test drive the vehicle to replicate the noise and observe any changes in braking performance.

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
•Jack stands
•Socket set
•Torque wrench
•Brake cleaner
•Multimeter

Parts Required

•Brake pads (if worn)
•Brake rotors (if damaged)
•Brake fluid (if low or contaminated)

Related Faults

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Diagnostic Steps

1
Inspect the brake pads for wear and damage.
2
Check brake rotors for scoring, warping, or corrosion.
3
Examine brake calipers for proper operation and any signs of fluid leaks.
4
Inspect brake fluid level and condition in the master cylinder reservoir.
5
Test drive the vehicle to replicate the noise and observe any changes in braking performance.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Park the vehicle on a flat surface, engage the parking brake, and disconnect the 12V battery for safety.
Tools Required: Jack, jack stands, socket set, torque wrench, brake cleaner, and a multimeter.

2. Inspect Brake Pads

Remove the wheel to access the brake components.
Check the thickness of the brake pads; replace if less than 3mm.
Clean the brake pad surface with brake cleaner and inspect for any cracks or uneven wear.

3. Check Brake Rotors

Inspect the brake rotors for grooves, scoring, or warping.
Measure rotor thickness with a micrometer; replace if below manufacturer specifications or if damage is detected.
If rotors are within specs but have minor scoring, consider resurfacing.

4. Examine Calipers and Brake Fluid

Check the caliper for proper operation by ensuring it moves freely on its pins.
Inspect for any leaks around the caliper seals.
Check brake fluid level and condition; replace if cloudy or contaminated.
Bleed the brake system to remove any air bubbles if fluid replacement occurs.

5. Reassemble and Test

Reinstall the brake components in reverse order, ensuring all bolts are torqued to manufacturer specifications.
Reconnect the battery and lower the vehicle.
Test drive to confirm that the noise has been resolved and that braking performance is restored.