how to know when to replace the brake pads on Tesla Model S Original (2012-2020)

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

517 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 determine when to replace brake pads on Tesla Model S (2012-2020). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is securely supported on jack stands before working underneath.
•Always disconnect the battery before performing any electrical work.

Symptoms

•Squeaking or squealing noise when braking
•Grinding sound during braking
•Vibration or pulsation in the brake pedal
•Warning message on the dashboard
•Reduced braking performance or longer stopping distances
•Brake fluid leaks or low brake fluid level

Diagnostic Steps

1
Inspect the brake pads visually through the wheel spokes for thickness.
2
Listen for abnormal noises when applying the brakes.
3
Check for warning messages on the dashboard using the vehicle's interface.
4
Test the braking performance in a safe area to assess responsiveness.
5
Use a brake pad thickness gauge to measure pad wear.
6
Examine the brake fluid level 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
•Socket set
•Torque wrench
•Brake grease
•Brake pad thickness gauge

Parts Required

•New brake pads
•Brake fluid (if needed)

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Diagnostic Steps

1
Inspect the brake pads visually through the wheel spokes for thickness.
2
Listen for abnormal noises when applying the brakes.
3
Check for warning messages on the dashboard using the vehicle's interface.
4
Test the braking performance in a safe area to assess responsiveness.
5
Use a brake pad thickness gauge to measure pad wear.
6
Examine the brake fluid level in the reservoir.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a flat surface and park it safely.
Disconnect the 12V battery to avoid any electrical issues.

2. Raise the Vehicle

Use a jack to lift the vehicle and secure it on jack stands.
Remove the wheel to access the brake assembly.

3. Inspect and Remove Brake Pads

Inspect the brake pads for wear; if they are less than 3mm thick, they should be replaced.
Remove the caliper bolts using a socket set.
Carefully slide the caliper off the rotor and support it without straining the brake line.
Remove the old brake pads from the caliper bracket.

4. Install New Brake Pads

Apply brake grease to the back of the new pads to prevent noise.
Insert the new brake pads into the caliper bracket.
Reinstall the caliper over the new pads and tighten the caliper bolts to the manufacturer's torque specifications (typically around 23-36 Nm).

5. Reassemble and Lower Vehicle

Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle back to the ground and torque the lug nuts to the manufacturer's specification (usually around 130 Nm).
Reconnect the 12V battery.