my Tesla Model S Original (2012-2020) has uneven brake pad wear is it serious

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

4 min read

646 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 uneven brake pad wear 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 the vehicle to cool down before performing any maintenance on hot brake components.

Symptoms

•Increased brake noise (squeaking or grinding)
•Vibration or pulsation during braking
•Reduced braking efficiency
•Brake warning light illuminated on the dashboard
•Pulling to one side when braking

Diagnostic Steps

1
Inspect brake pads visually for wear patterns and thickness differences.
2
Check brake calipers for proper operation and any signs of sticking or seizing.
3
Examine brake rotors for warping or uneven surfaces.
4
Verify brake fluid level and condition in the master cylinder.
5
Inspect the suspension components for wear or misalignment.
6
Scan for any error codes related to the brake system using an OBD-II scanner.

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

•OBD-II scanner
•Socket set
•Torque wrench
•Brake cleaner
•Bungee cord or support strap

Parts Required

•New brake pads
•New brake rotors (if necessary)
•Brake grease

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake pads visually for wear patterns and thickness differences.
2
Check brake calipers for proper operation and any signs of sticking or seizing.
3
Examine brake rotors for warping or uneven surfaces.
4
Verify brake fluid level and condition in the master cylinder.
5
Inspect the suspension components for wear or misalignment.
6
Scan for any error codes related to the brake system using an OBD-II scanner.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the parking brake is engaged.
Wear safety glasses and gloves.

2. Remove Wheel

Loosen the lug nuts slightly while the vehicle is on the ground.
Use a jack to lift the vehicle and secure it with jack stands.
Remove the lug nuts completely and take off the wheel.

3. Inspect and Replace Brake Pads

Inspect Pads:
- Check the thickness of each brake pad and look for uneven wear.
Remove Pads:
- Use a socket set to remove the caliper bolts.
- Slide the caliper off the rotor and support it with a bungee cord (do not let it hang by the brake line).
- Remove the old brake pads from the caliper bracket.
Install New Pads:
- Apply brake grease to the back of the new pads to reduce noise.
- Install the new pads into the caliper bracket.

4. Inspect and Replace Brake Rotors (if necessary)

Check Rotors:
- Measure the thickness of the rotors; if they are below the minimum specification or warped, replace them.
Remove Rotors:
- Remove any retaining screws and slide the rotor off the hub.
Install New Rotors:
- Clean the new rotors with brake cleaner to remove any protective coating.
- Install the new rotor onto the hub and secure with screws.

5. Reassemble Braking Components

Slide the caliper back over the new pads and rotor.
Secure the caliper with the bolts removed earlier, tightening to the manufacturer’s specifications (typically around 25-35 ft-lbs).
Reinstall the wheel and hand-tighten the lug nuts.

6. Lower Vehicle and Final Checks

Lower the vehicle back to the ground and fully tighten the lug nuts in a crisscross pattern to ensure even torque.
Pump the brake pedal a few times to seat the pads against the rotors before driving.