my Skoda Octavia NFL (2020-Present) has coolant leaking, what could be the cause?

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the engine is cool and the vehicle is on a level surface.
• Disconnect the battery to avoid electrical issues.

2. Inspect and Replace Faulty Components

A. Inspect Coolant Reservoir

• Tools Required: Socket set
• Check for cracks in the reservoir; if damaged, replace it.
  • Sub-steps:
    1. Remove the coolant reservoir cap.
    2. Unbolt the reservoir from its mounting brackets.
    3. Disconnect hoses from the reservoir and remove it from the vehicle.
    4. Install a new reservoir and reconnect hoses.

B. Replace Damaged Hoses

• Tools Required: Hose clamp pliers, cutting tool
• Check each hose for leaks and replace if necessary.
  • Sub-steps:
    1. Identify any damaged hoses.
    2. Use hose clamp pliers to loosen and remove clamps.
    3. Cut the old hose and remove it.
    4. Install the new hose and secure with clamps.

C. Repair or Replace the Radiator

• Tools Required: Socket set, coolant catch pan
• Inspect for leaks or damage; repair or replace if necessary.
  • Sub-steps:
    1. Drain coolant into the catch pan.
    2. Disconnect the upper and lower radiator hoses.
    3. Remove the mounting bolts and lift the radiator out.
    4. Install a new radiator if required and reattach hoses.

D. Check and Replace Water Pump

• Tools Required: Wrench set, gasket scraper
• Inspect the water pump for leaks; replace if necessary.
  • Sub-steps:
    1. Drain coolant from the system.
    2. Remove any components obstructing access to the water pump (e.g., timing belt or cover).
    3. Unbolt the water pump and remove it.
    4. Clean the mounting surface and install a new gasket.
    5. Install the new water pump and reassemble components.