my Skoda Octavia NFL (2020-Present) AC is blowing warm air, what could be wrong?

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the vehicle’s battery to ensure safety while working on electrical components.
• Allow the engine to cool before starting.

2. Recharge Refrigerant

• Tools Required: Manifold gauge set, refrigerant canister, safety goggles, gloves.
• Connect the low-pressure side of the manifold gauge to the service port.
• Start the engine and set the AC to maximum cooling.
• Check the gauge reading; if low, add refrigerant according to the manufacturer’s specifications (R134a or R1234yf).
• Monitor the system to ensure it reaches the correct pressure levels.
• Disconnect the manifold gauge after recharging.

3. Repair or Replace AC Compressor (if necessary)

• Tools Required: Socket set, torque wrench, AC compressor replacement (if needed), new O-rings, refrigerant oil.
• Remove the drive belt by loosening the tensioner.
• Disconnect electrical connectors and refrigerant lines from the AC compressor.
• Unbolt the AC compressor from its mount and remove it.
• Install the new AC compressor with new O-rings and apply refrigerant oil according to specifications.
• Reconnect refrigerant lines and electrical connections, then re-install the drive belt.

4. Replace Cabin Air Filter (if blocked)

• Tools Required: None or flat-head screwdriver (if applicable).
• Access the cabin air filter compartment, typically located behind the glove box.
• Remove the old filter and replace it with a new one, ensuring the airflow direction is correct.

5. Finalize Components and Recheck System

• Reconnect the vehicle’s battery.
• Start the vehicle and run the AC system to verify proper operation and check for leaks.