why does my Skoda Octavia’s brake pedal feel spongy?

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety.

2. Inspect and Replace Brake Fluid

• Sub-steps:
  1. Open the brake fluid reservoir cap and check the fluid condition. If it appears contaminated or low, proceed to replace it.
  2. Use a brake fluid bleeder kit to remove old fluid from the system.
  3. Refill the reservoir with the manufacturer-recommended brake fluid (DOT 4 for most Skoda Octavia models).
• Tools Required: Brake fluid bleeder kit, funnel.

3. Bleed the Brake System

• Sub-steps:
  1. Start at the brake furthest from the master cylinder (usually the rear passenger side).
  2. Attach a clear tube to the bleeder valve on the caliper and submerge the other end in a container.
  3. Have an assistant press the brake pedal while you open the bleeder valve to release air and fluid. Close the valve before they release the pedal.
  4. Repeat this process for each brake caliper in the order: rear passenger, rear driver, front passenger, front driver.
• Tools Required: Wrench for bleeder valves, clear tubing, container for old fluid.
• Safety Warnings: Ensure the brake fluid does not touch painted surfaces as it can cause damage.

4. Inspect and Replace Brake Pads/Rotors (if necessary)

• Sub-steps:
  1. Remove the wheel using a socket set.
  2. Inspect brake pads for thickness; replace if worn below the manufacturer's specifications.
  3. Measure rotor thickness and check for warping; replace if out of spec.
  4. Install new brake pads and/or rotors as needed, ensuring correct alignment and torque specifications.
• Tools Required: Socket set, torque wrench, brake cleaner.