why does my Tesla Outback shake when I brake

Subaru Outback 4th Generation (2010-2014)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

598 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 brake shaking issues in Tesla Outback. 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 battery before working on electrical systems.
•Allow the vehicle to cool before working on brakes to prevent burns.

Symptoms

•Vehicle shakes or vibrates during braking
•Steering wheel may vibrate noticeably
•Increased stopping distance
•Brake pedal feels pulsating
•Possible noise from the brakes (squealing or grinding)

Diagnostic Steps

1
Inspect brake components visually for wear and damage, including pads, rotors, and calipers.
2
Check for any visible signs of suspension wear, including bushings and tie rods.
3
Measure the thickness of the brake rotors using a micrometer to check for warping or uneven wear.
4
Test the brake system for air in the brake lines by performing a brake fluid inspection and bleeding the brakes if necessary.
5
Scan the vehicle's onboard diagnostics for any error codes related to braking or stability control systems.

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
•Micrometer
•Brake fluid
•Brake bleeder kit

Parts Required

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

Related Faults

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Diagnostic Steps

1
Inspect brake components visually for wear and damage, including pads, rotors, and calipers.
2
Check for any visible signs of suspension wear, including bushings and tie rods.
3
Measure the thickness of the brake rotors using a micrometer to check for warping or uneven wear.
4
Test the brake system for air in the brake lines by performing a brake fluid inspection and bleeding the brakes if necessary.
5
Scan the vehicle's onboard diagnostics for any error codes related to braking or stability control systems.

Solution

1. Preparation

Tools Required: Socket set, torque wrench, micrometer, brake fluid, brake bleeder kit.
Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
Disconnect the battery to prevent electrical issues during brake work.

2. Brake Component Inspection and Replacement

Remove Wheels
- Loosen lug nuts slightly while the vehicle is on the ground.
- Lift the vehicle using a jack and secure with jack stands.
- Fully remove the lug nuts and take off the wheels.
Inspect Brake Pads and Rotors
- Check the brake pads for thickness; replace if they are below the manufacturer’s specification.
- Measure the rotors with a micrometer; if warped (typically beyond 0.002 inches), they should be resurfaced or replaced.
Replace Brake Pads (if necessary)
- Remove the caliper by loosening the caliper bolts.
- Slide out the old brake pads and replace them with new pads, ensuring they are oriented correctly.
- Reinstall the caliper and torque the bolts to the manufacturer’s specifications.

3. Brake Rotor Resurfacing or Replacement

Resurface Rotors (if applicable)
- If rotors are within specification but warped, take them to a machine shop for resurfacing.
- Follow up by cleaning the rotor surface with brake cleaner before installation.
Replace Rotors (if necessary)
- Remove the caliper bracket if the rotor is being replaced.
- Slide off the old rotor and install the new rotor.
- Reinstall the caliper bracket and torque bolts to the manufacturer’s specifications.

4. Bleed Brake Lines (if necessary)

Use a brake bleeder kit to remove any air from the brake lines.
Start from the caliper furthest from the master cylinder and work towards the closest.

5. Reassemble and Test

Reinstall the wheels and torque the lug nuts to the manufacturer’s specifications.
Reconnect the battery and perform a test drive to ensure the issue is resolved.