my Skoda Octavia NFL (2020-Present) has a hard brake pedal what does it mean

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is on a level surface and secured with wheel chocks.
• Disconnect the battery to prevent any electrical issues.

2. Inspect and Replace Brake Fluid

• Tools Required: Brake fluid, funnel, clean rags
  • Open the master cylinder reservoir cap.
  • Check the fluid level; if low, top off with the recommended brake fluid (DOT 4).
  • Inspect the fluid for contamination; if dirty, proceed to flush the system.
  • Flush the brake system by bleeding each brake line until clear fluid emerges.

3. Brake Booster Inspection

• Tools Required: Vacuum gauge
  • Locate the brake booster and check the vacuum line for cracks or disconnections.
  • Attach the vacuum gauge to the brake booster vacuum line; it should read around 18-22 inHg at idle.
  • If the reading is low, inspect the vacuum source and replace any faulty components.

4. Brake Booster Replacement (if necessary)

• Tools Required: Socket set, torque wrench, brake booster replacement part
  • Remove the master cylinder from the brake booster by unscrewing the mounting nuts.
  • Disconnect the vacuum line and any electrical connectors.
  • Unscrew the brake booster mounting nuts and remove the booster from the firewall.
  • Install the new brake booster in reverse order, ensuring all connections are secure and properly torqued.

5. Reassemble and Test

• Reconnect the battery and start the vehicle.
• Test the brake pedal feel; it should be firm but responsive.
• Conduct a test drive to ensure proper braking performance.