my Tesla Model S makes a grinding noise when braking what's the issue

Tesla Model S Plaid/Refresh (2021-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

549 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 noise when braking in Tesla Model S. Step-by-step guide with diagnostic procedures 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 the braking system to avoid electrical issues.
•Allow the vehicle to cool down before starting the repair to prevent burns.

Symptoms

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

Diagnostic Steps

1
Inspect brake pads for wear using visual inspection.
2
Check brake rotors for scoring or damage.
3
Examine brake calipers for proper function and any sticking issues.
4
Inspect brake fluid level and condition.
5
Scan the vehicle's onboard diagnostic system for any error codes related to the braking system.

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
•Torque wrench
•Jack and jack stands
•Brake cleaner
•Brake grease

Parts Required

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

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 for wear using visual inspection.
2
Check brake rotors for scoring or damage.
3
Examine brake calipers for proper function and any sticking issues.
4
Inspect brake fluid level and condition.
5
Scan the vehicle's onboard diagnostic system for any error codes related to the braking system.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the battery to ensure safety while working on the electrical components.

2. Inspect and Replace Brake Pads

Remove the Wheel
- Use a socket set to loosen and remove the wheel nuts.
- Lift the vehicle with a jack and secure with jack stands.
Remove Brake Caliper
- Use a socket to remove the caliper mounting bolts.
- Carefully slide the caliper off the rotor, ensuring to support it so that the brake line is not stressed.
Inspect Brake Pads
- Check the thickness of the brake pads. Replace if worn down to 3mm or less.
- Inspect the surface for any uneven wear or damage.
Replace Brake Pads (if necessary)
- Remove the old brake pads and install new ones, ensuring they are seated properly.
- Apply brake grease to the backing of the new pads to reduce noise.

3. Inspect and Replace Brake Rotors

Check Rotor Condition
- Visually inspect the rotor surface for scoring, grooves, or warping.
Replace Rotors (if necessary)
- If rotors are damaged, remove them by unscrewing the retaining screws (if applicable).
- Install new rotors by securing them in place with the screws.

4. Reassemble Braking System

Reinstall Brake Caliper
- Slide the caliper back over the new pads and rotor.
- Tighten the caliper mounting bolts to the manufacturer's specifications.
Reinstall Wheel
- Place the wheel back onto the hub and hand-tighten the nuts.
- Lower the vehicle and tighten the wheel nuts to the specified torque.

5. Final Checks

Reconnect the battery.
Pump the brake pedal to ensure proper engagement of the brake pads.