Volkswagen Golf MK6 (2009-2014) brake pedal goes to the floor what's wrong

Volkswagen Golf MK7 (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

critical

Severity

4 min read

659 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 the brake pedal going to the floor in Volkswagen Golf MK6 (2009-2014). Step-by-step guide with symptoms and solutions.

Affected Component

Brakes

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always allow the vehicle to cool before working on the braking system.
•Ensure the parking brake is engaged and the vehicle is securely supported on jack stands before starting repairs.

Symptoms

•Brake pedal feels spongy or soft when pressed
•Brake warning light illuminated on the dashboard
•Reduced braking effectiveness or delayed response
•Fluid leakage observed under the vehicle
•Unusual noises from brake components (e.g., grinding or squeaking)

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, calipers, and wheel cylinders.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the braking system.
4
Perform a visual inspection of the brake pads and rotors for wear or damage.
5
Test the brake booster for proper operation by pressing the brake pedal with the engine off, then starting the engine to check for a change in pedal feel.
6
Bleed the brake system to check for air in the lines.

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
•Brake bleeder kit
•Wrench set
•Safety goggles

Parts Required

•Brake fluid (DOT 4)
•Replacement brake lines or calipers (if leaks are found)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect brake fluid level in the master cylinder reservoir.
2
Check for visible leaks in brake lines, calipers, and wheel cylinders.
3
Scan the vehicle for any diagnostic trouble codes (DTCs) related to the braking system.
4
Perform a visual inspection of the brake pads and rotors for wear or damage.
5
Test the brake booster for proper operation by pressing the brake pedal with the engine off, then starting the engine to check for a change in pedal feel.
6
Bleed the brake system to check for air in the lines.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is on a flat surface, engage the parking brake, and use wheel chocks.
Tools Required: Jack and jack stands, socket set, brake bleeder kit, wrench set, and safety goggles.

2. Check and Refill Brake Fluid

Locate the master cylinder reservoir.
Open the cap and check the brake fluid level. If low, top off with the manufacturer-recommended brake fluid (usually DOT 4).
Inspect for any signs of contamination in the fluid (e.g., discoloration).

3. Inspect and Repair Leaks

Visually inspect brake lines, calipers, and wheel cylinders for leaks.
If a leak is found, replace the damaged component (e.g., brake line, caliper).
Use a line wrench to avoid rounding off fittings and ensure tight seals.
Parts Required: Replacement brake lines or calipers as needed.

4. Bleed the Brake System

Start with the brake furthest from the master cylinder (usually the passenger rear).
Attach a clear hose to the bleeder valve on the brake caliper and submerge the other end in a container with brake fluid.
Have an assistant pump the brake pedal several times, then hold it down. Open the bleeder valve to allow air and fluid to escape, then close the valve before releasing the pedal.
Repeat this process until clear fluid without bubbles flows from the bleeder valve.
Move to the next brake in the order: driver rear, passenger front, driver front.
Ensure the master cylinder never runs dry during this process.

5. Final Assembly and Testing

Recheck all connections and ensure the brake fluid level is at the proper mark.
Replace the cap on the master cylinder reservoir.
Lower the vehicle and remove wheel chocks.
Test the brake pedal feel before driving. It should feel firm and responsive.