Skoda Octavia NFL (2020-Present) coolant leak how to find it

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the engine is cool before starting work.
• Disconnect the battery to avoid electrical issues.

2. Inspect and Replace Hoses

1. Visual Inspection
   • Look for any visible cracks or bulges on the hoses.
   • Feel along the hoses for wet spots indicating a leak.
2. Remove Damaged Hoses
   • Use a hose clamp tool to loosen the clamps and remove the damaged hoses.
   • Dispose of old hoses properly.
3. Install New Hoses
   • Install new hoses ensuring they are routed correctly.
   • Tighten the hose clamps to the manufacturer's specifications (usually around 13-15 in-lbs).

3. Repair or Replace Radiator

1. Check Radiator
   • Inspect the radiator for leaks and corrosion.
   • If damaged, proceed with removal.
2. Remove Radiator
   • Disconnect the coolant hoses and drain the fluid.
   • Unbolt the radiator from its mounts.
3. Install New Radiator
   • Position the new radiator in place and secure it with bolts.
   • Reconnect the coolant hoses and fill the system with the appropriate coolant mixture.

4. Check Water Pump

1. Inspect Water Pump
   • Look for coolant around the pump shaft indicating a seal failure.
2. Remove and Replace Water Pump
   • Drain coolant as necessary.
   • Remove the water pump from the engine by unbolting it.
   • Replace with a new water pump, ensuring to use new gaskets.
   • Torque bolts to manufacturer specifications (typically around 18-22 ft-lbs).

5. Refill and Bleed Cooling System

1. Refill Coolant
   • Use the manufacturer-recommended coolant.
   • Fill the reservoir to the indicated level.
2. Bleed Air from System
   • Start the engine and allow it to reach operating temperature.
   • Open the bleed valve (if equipped) to release trapped air until coolant flows steadily.