why does my Porsche Cayenne E3 (2018-Present) shake when I brake

Porsche Cayenne E3 (2018-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

511 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 Porsche Cayenne E3 (2018-Present). 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

•Disconnect the battery before working on electrical systems.
•Allow components to cool before handling after driving.

Symptoms

•Vehicle shakes or vibrates during braking
•Pulsating brake pedal feel
•Increased stopping distance
•Unusual noise from brake components (grinding or squeaking)
•Steering wheel vibration during braking

Diagnostic Steps

1
Inspect brake discs for warping by measuring their runout using a dial indicator.
2
Check brake pads for uneven wear and thickness.
3
Examine suspension and steering components for wear or damage (e.g., control arms, tie rods).
4
Test brake fluid for contamination and moisture content.
5
Verify wheel alignment and balance.

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
•Dial indicator
•Brake grease

Parts Required

•Brake discs
•Brake pads

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake discs for warping by measuring their runout using a dial indicator.
2
Check brake pads for uneven wear and thickness.
3
Examine suspension and steering components for wear or damage (e.g., control arms, tie rods).
4
Test brake fluid for contamination and moisture content.
5
Verify wheel alignment and balance.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and engage the parking brake.
Disconnect the battery to prevent electrical issues during repair.

2. Inspect and Replace Brake Discs

Remove the Wheel
- Use a lug wrench to loosen and remove the wheel lug nuts.
- Lift the vehicle with a jack and secure with jack stands.
Remove Brake Caliper
- Use a socket set to remove the caliper mounting bolts.
- Hang the caliper with a bungee cord to avoid straining the brake line.
Remove Brake Disc
- If applicable, remove the retaining screws holding the brake disc.
- Slide the disc off the hub.
Inspect for Warping
- Use a dial indicator to measure the disc runout. If it's above the manufacturer's specification, replace the disc.
Install New Brake Disc
- Clean the hub surface and install the new disc.
- Reattach retaining screws if used.
Reattach Brake Caliper
- Position the caliper over the new disc and secure it with the mounting bolts.
- Torque the bolts to the manufacturer's specifications.

3. Inspect and Replace Brake Pads

Remove Old Brake Pads
- Slide the pads out of the caliper bracket.
- Inspect for uneven wear; replace if necessary.
Install New Brake Pads
- Apply a thin layer of brake grease to the backing of the new pads.
- Slide the new pads into the caliper bracket.
Finalize Assembly
- Reattach the wheel and lug nuts, and lower the vehicle.
- Torque lug nuts to the manufacturer's specifications.