my Tesla Model 3 Highland (2024-present) is making a grinding noise when braking, what should I do?

Tesla Model 3 Highland (2024-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

512 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 3 Highland (2024-present). 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

•Always disconnect the battery before working on the braking system.
•Ensure the vehicle is secure on jack stands before working underneath.

Symptoms

•Grinding noise when applying brakes
•Reduced braking efficiency
•Vibration in the brake pedal
•Warning lights on the dashboard
•Increased stopping distance

Diagnostic Steps

1
Inspect brake pads for wear and damage.
2
Check brake rotors for scoring or warping.
3
Examine brake calipers for proper function and any signs of sticking.
4
Inspect brake fluid levels and condition.
5
Scan the vehicle’s computer for any brake-related error codes.

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
•Ratchet and sockets
•Brake cleaner
•Brake pad spreader

Parts Required

•Brake pads
•Brake rotors
•Brake fluid

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Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a flat surface and engage the parking brake.
Disconnect the battery to prevent electrical issues.

2. Remove Wheel

Use a jack to raise the vehicle and secure it with jack stands.
Remove the wheel lug nuts with a socket wrench.
Take off the wheel to access the brake assembly.

3. Inspect Brake Components

Brake Pads: Remove caliper bolts with a ratchet and socket, then slide off the caliper. Inspect the brake pads for thickness; replace if less than 3mm.
Brake Rotors: Check the surface of the rotors for deep grooves or warping. If damaged, replace the rotors. Use a dial indicator to measure rotor runout if necessary.

4. Replace Parts

Brake Pads: If worn, install new pads by sliding them into place and securing the caliper.
Brake Rotors: If necessary, remove the old rotor by unscrewing the rotor retaining screws (if equipped) and replace with a new rotor, ensuring it is properly seated.

5. Reassemble and Reinstall

Reinstall the brake caliper and torque bolts to manufacturer specifications (typically 25-30 ft-lbs).
Reattach the wheel and torque lug nuts to the specified value (usually 100-120 ft-lbs).
Remove jack stands and lower the vehicle.

6. Brake System Check

Reconnect the battery.
Pump the brake pedal several times to seat the pads against the rotors.
Check brake fluid levels and top up if necessary.