my Tesla Model 3 Original (2017-2023) shakes when I brake what could be wrong

Tesla Model 3 Highland (2024-present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

539 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 when braking in Tesla Model 3 (2017-2023). 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 wear safety glasses when working on brakes.
•Ensure the vehicle is securely supported on jack stands before working underneath.

Symptoms

•Vehicle shakes or vibrates when braking
•Pulsation felt through the brake pedal
•Uneven wear on brake pads or rotors
•Increased stopping distance
•Possible noise coming from brakes (squeaking or grinding)

Diagnostic Steps

1
Inspect brake rotor surfaces for warping or uneven wear using a dial indicator.
2
Check brake pad thickness and condition for wear; measure with calipers.
3
Examine calipers for proper operation and ensure they are not sticking.
4
Inspect wheel bearings for play or damage by shaking the wheel.
5
Evaluate suspension components (control arms, bushings, struts) for wear or damage.

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

•Lug wrench
•Jack and jack stands
•Socket set
•Brake caliper tool
•Dial indicator
•Torque wrench

Parts Required

•Brake rotors (if warped or damaged)
•Brake pads (if worn down)

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Diagnostic Steps

1
Inspect brake rotor surfaces for warping or uneven wear using a dial indicator.
2
Check brake pad thickness and condition for wear; measure with calipers.
3
Examine calipers for proper operation and ensure they are not sticking.
4
Inspect wheel bearings for play or damage by shaking the wheel.
5
Evaluate suspension components (control arms, bushings, struts) for wear or damage.

Solution

1. Preparation

Gather tools and parts required.
Ensure vehicle is on a level surface and securely jack up the front or rear as needed.

2. Remove Wheel

Use a lug wrench to loosen wheel nuts.
Jack up the vehicle and place it on jack stands.
Fully remove the wheel to access brake components.

3. Inspect and Replace Brake Rotors

Inspect: Visually check the rotors for signs of warping or scoring. Use a dial indicator for precise measurement.
Replace (if necessary):
1. Remove caliper bolts using a socket set.
2. Hang caliper using a suitable suspension support or bungee cord (do not let it hang by the brake line).
3. Remove the rotor by unscrewing any retaining screws and sliding it off the hub.
4. Install new rotor by sliding it onto the hub and securing with screws.

4. Inspect and Replace Brake Pads

Inspect: Check brake pads for wear; they should have a minimum thickness of 3mm.
Replace (if necessary):
1. Remove the old brake pads from the caliper bracket.
2. Compress the caliper piston using a brake caliper tool to allow new pads to fit.
3. Install new brake pads in the caliper bracket.

5. Reassemble and Test

Reattach the caliper and tighten bolts to manufacturer specifications (typically around 25-30 ft-lbs).
Reinstall the wheel and hand-tighten the lug nuts.
Lower the vehicle and torque lug nuts to specification (generally 100-120 ft-lbs).
Test drive the vehicle to ensure the braking issue is resolved.