my Skoda Octavia NFL (2020-Present) overheats after a short drive

Solution

1. Preparation

• Gather tools and materials before starting the repair.
• Tools Required: Socket set, screwdrivers, coolant pressure tester, OBD-II scanner.
• Ensure the engine is cool to avoid burns and allow the vehicle to sit for at least 30 minutes after driving.

2. Coolant Level and Condition Check

• Remove the coolant reservoir cap and check the level.
• If low, top off with the correct type of coolant (refer to the owner's manual for specifications).
• Inspect the coolant for signs of contamination or rust; replace if necessary.

3. Inspect and Replace Thermostat

• Tools Required: Socket set, gasket scraper, new thermostat, coolant.
• Drain a small amount of coolant from the radiator.
• Remove the thermostat housing bolts and take off the housing.
• Remove the old thermostat and replace it with a new one, ensuring it is oriented correctly.
• Reinstall the thermostat housing and torque the bolts to the manufacturer's specifications.
• Refill the cooling system with the appropriate coolant.

4. Test Radiator Fan

• Disconnect the electrical connector from the radiator fan.
• Use a multimeter to check if the fan motor is receiving power when the engine reaches operating temperature.
• If not working, replace the fan motor as needed.

5. Inspect and Replace Water Pump

• Tools Required: Socket set, new water pump, gasket sealant.
• Drain the coolant from the system.
• Remove the serpentine belt and any components obstructing access to the water pump.
• Unbolt the water pump and remove it from the engine.
• Clean the mounting surface and install the new water pump with a new gasket, ensuring a proper seal.
• Reassemble the components, refill the cooling system, and check for leaks.