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Volkswagen Golf Seventh Generation (2013-2020) brake pedal goes to the floor, what’s wrong - Volkswagen Golf
Home/Cars/Volkswagen/Golf/Eighth Generation (2020-present)/Volkswagen Golf Seventh Generation (2013-2020) brake pedal goes to the floor, what’s wrong

Volkswagen Golf Seventh Generation (2013-2020) brake pedal goes to the floor, what’s wrong

Volkswagen Golf Eighth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
critical
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
663 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 a Volkswagen Golf 2013-2020. 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 disconnect the negative battery terminal before working on electrical components.
  • •Allow the brake components to cool before inspection or repair.

Symptoms

  • •Brake pedal feels spongy or goes to the floor with little resistance
  • •Warning light illuminated on the dashboard
  • •Longer stopping distances than normal
  • •Fluid leak under the vehicle
  • •Increased brake pedal travel

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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

  • •OBD-II scanner
  • •Brake fluid
  • •Wrench set
  • •Brake fluid tester
  • •Clean rags

Parts Required

  • •Brake fluid (DOT 3 or DOT 4)
  • •Brake master cylinder (if replacement is necessary)
  • •Brake lines or calipers (if leaks are present)

Additional Information

Affected Component
Brakes
Estimated Time
2-4 hours
Difficulty
medium
Severity
critical
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather tools and materials:
    • OBD-II scanner
    • Brake fluid
    • Wrench set
    • Brake fluid tester
    • Clean rags
  • Ensure the vehicle is parked on a level surface with the engine off.
  • Engage the parking brake for safety.
2. Inspect and Address Brake Fluid Level
  • Open the hood and locate the brake master cylinder.
  • Remove the cap and check the brake fluid level.
    • If low, add the appropriate type of brake fluid (DOT 3 or DOT 4 as specified in the owner's manual).
    • Replace the cap securely after adding fluid.
3. Check for Leaks
  • Inspect all brake lines, connections, brake calipers, and wheel cylinders visually for any signs of leakage.
  • If a leak is found, replace the damaged component (brake line, caliper, or wheel cylinder) as necessary.
  • Ensure all connections are tight and secure.
4. Replace the Brake Master Cylinder (if necessary)
  • If no external leaks are present and the pedal still goes to the floor, the master cylinder may be faulty.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Unbolt the master cylinder from the brake booster using the appropriate wrench.
  • Remove the brake lines from the master cylinder; use a line wrench to avoid damaging the fittings.
  • Install the new master cylinder by reversing the steps, ensuring to torque the bolts to manufacturer specifications (typically around 15-20 Nm).
  • Bleed the brake system to remove air, starting from the farthest wheel from the master cylinder.
5. Bleed the Brake System
  • Begin bleeding at the rear passenger side, then the rear driver side, followed by the front passenger side, and finally the front driver side.
  • Use a brake bleeder kit or have an assistant pump the brake pedal while you open and close the bleeder valve on each brake caliper.
  • Monitor the fluid until it runs clear and free of bubbles.