my Skoda Octavia NFL (2020-Present) has a hard brake pedal, what could be the issue?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface with the engine off.
• Wear safety gloves and goggles.

2. Brake Fluid Check

• Open the hood and locate the brake fluid reservoir.
• Inspect the fluid level; if low, top off with the appropriate brake fluid (DOT 4 or as specified in the owner's manual).
• If the fluid is contaminated, perform a complete brake fluid flush.

3. Inspect and Replace Vacuum Hose

• Locate the vacuum hose connected to the brake booster.
• Inspect for cracks, leaks, or disconnections.
• If damaged:
  • Disconnect the vacuum hose from the brake booster.
  • Remove the old hose and replace it with a new one, ensuring a tight fit.
  • Reconnect the hose to the brake booster securely.

4. Test the Brake Booster

• If the vacuum hose is intact but the issue persists, replace the brake booster.
• Disconnect the negative battery terminal.
• Remove any components obstructing access to the brake booster (e.g., air intake duct).
• Disconnect the brake lines from the master cylinder (be prepared for brake fluid spillage).
• Unbolt the brake booster from the firewall and disconnect the vacuum line.
• Install the new brake booster by reversing these steps, ensuring all bolts are tightened to the manufacturer's specifications.

5. Final Assembly

• Reconnect the negative battery terminal.
• Refill brake fluid if necessary and bleed the brake system to remove any air from the lines.
• Recheck all connections and ensure there are no leaks.