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

Solution

1. Preparation

• Tools Required: Safety gloves, safety goggles, coolant, funnel, UV leak detection dye, UV light.
• Park the vehicle on a level surface and allow the engine to cool completely before beginning the repair.

2. Repair or Replace Damaged Components

a. Coolant Reservoir

• Inspect: If the reservoir is cracked, remove it by unscrewing the mounting bolts and disconnecting hoses.
• Replace: Install a new reservoir by reversing the removal steps and ensuring all connections are secure.

b. Hoses

• Inspect: Look for cracks or bulges in hoses.
• Replace: Cut the damaged section out, use hose clamps to secure new hose in place, ensuring proper fit.

c. Radiator

• Inspect: Look for leaks in the radiator core or fittings.
• Repair: If minor leaks are found, use radiator sealant; for major leaks, replace the radiator by removing mounting bolts and disconnecting hoses.

d. Water Pump

• Inspect: Look for coolant leaks around the water pump.
• Replace: Drain coolant, remove the belt, unscrew the water pump, replace with a new unit, and reassemble.

e. Cylinder Head Gasket

• Inspect: Check for signs of coolant leaking from the gasket.
• Replace: This requires significant disassembly. Remove the cylinder head, replace the gasket, and reassemble with specified torque settings (usually around 20-30 Nm for head bolts).

3. Refill Coolant

• After repairs, refill the coolant reservoir with the appropriate type of coolant specified in the owner's manual.
• Check Levels: Ensure the system is bled of air by running the engine with the radiator cap off until the thermostat opens.