my Skoda Octavia NFL (2020-Present) has a loud noise from the AC, why?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure electrical safety.
• Allow the vehicle to cool down before starting.

2. Inspect and Clean Components

• AC Compressor Inspection
  • Remove any debris around the compressor.
  • Check for signs of oil leakage which may indicate a failure.
• AC Belt Check
  • Inspect the belt for wear and proper tension.
  • Replace if frayed or loose.

3. Clear Blockages

• Condenser and Evaporator Cleaning
  • Remove the front grille or any covers to access the condenser.
  • Use compressed air to blow out any dirt or debris from the condenser fins.
  • If the evaporator is accessible, use a soft brush to clean its surface.

4. Test and Replace Components

• Replace Noisy Parts
  • If the noise is determined to be from the AC compressor, replace it:
    • Disconnect the electrical connector and refrigerant lines.
    • Remove mounting bolts using a socket set.
    • Install the new compressor in reverse order, ensuring proper torque specifications (usually around 25-30 Nm).
  • Recharge the AC system with the correct refrigerant (R134a or R1234yf, depending on the model).

5. Reassemble and Test

• Reconnect the battery.
• Start the engine and turn on the AC to test for noise and cooling efficiency.