my Tesla Model 3 Original (2017-2023) is shaking when I brake what's causing it

Tesla Model 3 Highland (2024-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

480 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 shaking during braking in Tesla Model 3 (2017-2023). 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 wear safety glasses and gloves while working on the braking system.
•Ensure the vehicle is properly supported on jack stands before working underneath.

Symptoms

•Shaking or vibration felt in the steering wheel or throughout the vehicle during braking
•Pulsating brake pedal when applying pressure
•Increased stopping distance
•Uneven wear on brake pads or rotors
•Brake warning light illuminated on the dashboard

Diagnostic Steps

1
Inspect the brake rotors for warping or uneven surfaces.
2
Check the brake pads for uneven wear or damage.
3
Evaluate the brake calipers for proper function and alignment.
4
Examine the wheel bearings for any play or damage.
5
Check the tire balance and alignment for any irregularities.
6
Scan for any error codes using an OBD-II scanner 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

•Jack and jack stands
•Lug wrench
•Torque wrench
•Brake cleaner
•Caliper tool
•OBD-II scanner

Parts Required

•Brake rotors
•Brake pads
•Brake caliper hardware kit

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Diagnostic Steps

1
Inspect the brake rotors for warping or uneven surfaces.
2
Check the brake pads for uneven wear or damage.
3
Evaluate the brake calipers for proper function and alignment.
4
Examine the wheel bearings for any play or damage.
5
Check the tire balance and alignment for any irregularities.
6
Scan for any error codes using an OBD-II scanner related to the braking system.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface and set the parking brake.
Gather necessary tools and safety equipment.

2. Wheel Removal

Loosen the lug nuts on the affected wheel while the vehicle is still 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. Brake Inspection

Visually inspect the brake rotor for warping or scoring. Use a straightedge to check for flatness.
Measure the rotor thickness using a caliper; if below the minimum specification, replacement is necessary.
Check the brake pads for wear; if thickness is less than 3mm, replace them.

4. Brake Component Replacement

If rotors are warped or damaged, remove the caliper by loosening the caliper bolts and support it without stretching the brake line.
Remove the old rotor by unscrewing the rotor retaining screws if equipped and sliding it off the hub.
Install the new rotor, ensuring it is properly seated and secured.
Replace old brake pads with new ones, ensuring they are correctly aligned in the caliper bracket.
Reinstall the caliper and torque the bolts to the manufacturer's specifications (usually around 25-35 lb-ft).

5. Wheel Reinstallation

Place the wheel back onto the hub and hand-tighten the lug nuts.
Lower the vehicle from the jack stands using the jack.
Torque the lug nuts to the manufacturer's specifications (usually around 100-110 lb-ft).

Tools Required

Jack and jack stands
Lug wrench
Torque wrench
Brake cleaner
Caliper tool (if needed for brake pad replacement)
OBD-II scanner (for diagnostics)

Parts Required

Brake rotors (if warped)
Brake pads (if worn)
Brake caliper hardware kit (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Always wear safety glasses and gloves while working on the braking system.
Ensure the vehicle is properly supported on jack stands before working underneath.