my Skoda Octavia NFL (2020-Present) temperature gauge keeps rising, what should I do?

Solution

1. Preparation

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

2. Coolant Level Inspection

• Remove the coolant reservoir cap.
• Check the coolant level; if low, top off with the recommended coolant type.
• Inspect for any signs of contamination or discoloration in the coolant.

3. Leak Repair

• If leaks are found, identify the source (e.g., hoses, water pump).
• Replace any damaged hoses using a socket set.
• For a leaking water pump:
  1. Drain the coolant from the radiator.
  2. Remove the serpentine belt.
  3. Unbolt and remove the water pump.
  4. Clean the mounting surface and install the new water pump with a new gasket.
  5. Torque the bolts to manufacturer specifications.

4. Thermostat Replacement (if faulty)

• Locate the thermostat housing.
• Drain the coolant below the thermostat level.
• Remove the housing bolts and take out the old thermostat.
• Install the new thermostat with the correct orientation.
• Reattach the housing and torque the bolts to specification.

5. Radiator Fan Check

• Turn on the ignition without starting the engine.
• Observe the radiator fans; they should engage as the temperature rises.
• If not functioning, replace the radiator fan relay or the fan itself.

6. Final Assembly

• Refill the cooling system with the appropriate coolant mixture.
• Reconnect the battery.
• Start the engine and allow it to reach operating temperature while monitoring the temperature gauge.