my Skoda Octavia NFL (2020-Present) has a coolant leak, how to find it?

Solution

1. Preparation

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

2. Inspect and Replace Hoses

• Inspect Hoses: Check all cooling hoses for cracks, bulges, or leaks.
• Replace Damaged Hoses:
  • Use a hose clamp tool to remove the damaged hose.
  • Install the new hose ensuring proper fit and secure with hose clamps.
  • Torque the clamps to manufacturer specifications.

3. Repair or Replace Radiator

• Inspect the Radiator: Look for any visible cracks or leaks.
• Replace Radiator (if necessary):
  • Drain the coolant by opening the drain valve at the bottom of the radiator.
  • Remove the upper and lower radiator hoses, along with mounting brackets.
  • Install the new radiator and connect hoses, ensuring all connections are secure.

4. Check and Replace Water Pump

• Inspect Water Pump: Look for coolant leaks around the weep hole.
• Replace Water Pump (if necessary):
  • Drain coolant from the system.
  • Remove the serpentine belt using a belt tensioner tool.
  • Unbolt the water pump from the engine block and remove it.
  • Clean the mounting surface, install a new gasket, and attach the new water pump.
  • Reattach the serpentine belt and refill the cooling system with coolant.

5. System Refill and Bleed

• Refill Cooling System: Add the manufacturer-recommended coolant to the reservoir.
• Bleed the System:
  • Start the engine and let it reach operating temperature.
  • Open the bleed valve (if equipped) to remove air from the system.
  • Monitor the coolant level and top off as necessary.