how to identify if Tesla Model S Original (2012-2020) needs brake replacement

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

571 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 identify and replace brakes on Tesla Model S (2012-2020). Comprehensive guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Brakes

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always ensure the vehicle is securely supported on jack stands before working underneath.
•Allow components to cool down before touching after driving.

Symptoms

•Squeaking or grinding noises when braking
•Reduced braking efficiency or longer stopping distances
•Vibration or pulsation in the brake pedal
•Warning light for brake system on the dashboard
•Brake fluid leakage around the wheel area
•Increased brake pedal travel

Diagnostic Steps

1
Inspect the brake pads visually for wear indicators.
2
Measure the thickness of the brake pads using a caliper; replace if below manufacturer specifications (typically 3mm).
3
Check the condition of the brake rotors for warping or scoring.
4
Use an OBD-II scanner to check for any brake-related error codes.
5
Test the brake fluid for moisture content using a brake fluid tester.
6
Inspect brake lines and hoses for any signs of leaks or cracks.

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
•Brake caliper tool
•Torque wrench
•Brake fluid tester
•Jack and jack stands
•Safety glasses
•Gloves

Parts Required

•Brake pads (specific to Tesla Model S)
•Brake rotors (if needed)

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Diagnostic Steps

1
Inspect the brake pads visually for wear indicators.
2
Measure the thickness of the brake pads using a caliper; replace if below manufacturer specifications (typically 3mm).
3
Check the condition of the brake rotors for warping or scoring.
4
Use an OBD-II scanner to check for any brake-related error codes.
5
Test the brake fluid for moisture content using a brake fluid tester.
6
Inspect brake lines and hoses for any signs of leaks or cracks.

Solution

1. Preparation

Tools Required: Socket set, brake caliper tool, torque wrench, brake fluid tester, jack and jack stands, safety glasses, gloves.
Safely park the vehicle on a flat surface and engage the parking brake.
Disconnect the 12V battery to ensure electrical safety.

2. Remove Wheel

Loosen the lug nuts slightly while the car is on the ground.
Raise the vehicle using a jack and secure it with jack stands.
Remove the wheel completely.

3. Inspect and Remove Brake Components

Inspect Brake Pads: Check wear on brake pads. If they are worn, proceed to remove them.
Remove Caliper: Unbolt the brake caliper using the socket set and hang it securely using a bungee cord or similar, avoiding stress on the brake line.
Remove Brake Pads: Slide the old brake pads out from the caliper bracket.

4. Install New Brake Pads

Prepare New Pads: Apply brake grease to the back of the new pads to prevent squeaking.
Insert New Pads: Slide the new pads into the caliper bracket, ensuring they are seated correctly.

5. Reinstall Caliper and Wheel

Reattach Caliper: Place the caliper back over the new pads and bolt it securely using the torque specifications (typically 20-30 ft-lbs, refer to service manual).
Reinstall Wheel: Place the wheel back onto the hub and hand-tighten the lug nuts.

6. Final Checks

Lower the vehicle back to the ground.
Tighten lug nuts to the specified torque (typically 80-100 ft-lbs).
Reconnect the battery and check for any warning lights.