my Skoda Octavia NFL (2020-Present) is making a hissing sound when I turn the AC on, what’s causing...

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Wear safety glasses and gloves.

2. Recover Refrigerant

• Connect an AC recovery machine to the high and low-pressure service ports.
• Follow the machine's instructions to recover any refrigerant from the system.
• Ensure the work area is well-ventilated.

3. Inspect Components

• Remove the front grille (if necessary) to access the AC components.
• Inspect the AC compressor for signs of oil seepage, which indicates a refrigerant leak.
• Check all AC lines and connections for wear or damage.
• Examine the condenser and evaporator for any blockage or leaks.

4. Replace Faulty Parts

• If leaks are found, replace affected components (e.g., hoses, seals, or compressor).
• Use new O-rings and seals when reassembling connections to prevent future leaks.
• Refill the AC system with the specified type and amount of refrigerant using the recovery machine.

5. Test the AC System

• Reconnect the AC system and start the engine.
• Turn on the AC and monitor for the hissing sound.
• Check the pressure readings to ensure they are within the manufacturer's specifications.