my Skoda Octavia NFL (2020-Present) brake pedal goes to the floor, what should I check?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface and secure with wheel chocks.
• Wear safety goggles and gloves.

2. Check and Refill Brake Fluid

• Locate the master cylinder reservoir, typically found near the back of the engine bay.
• Remove the cap and check the fluid level; if low, top up with the appropriate brake fluid (DOT 4 recommended).
• Inspect for any signs of contamination in the fluid.

3. Inspect and Repair Brake Lines

• Visually inspect all brake lines for signs of wear, corrosion, or leaks.
• If leaks are found, replace the damaged brake line using a wrench and appropriate brake line fittings.
• Ensure all connections are tight and secure.

4. Bleed the Brakes

• Start at the wheel furthest from the master cylinder (usually the passenger-side rear).
• Use a brake bleeder kit or clear tubing attached to the bleeder valve.
• Open the valve, have an assistant press the brake pedal, and close the valve before releasing the pedal.
• Repeat until no air bubbles are observed in the fluid.
• Move to the next wheels in the following order: driver-side rear, passenger-side front, and driver-side front.

5. Replace the Brake Master Cylinder (if necessary)

• If the master cylinder is found to be faulty, remove it by disconnecting the brake lines and unbolting from the brake booster.
• Install the new master cylinder, ensuring all connections are sealed and tightened.
• Refill brake fluid and bleed the system as described earlier.