my Skoda Octavia NFL (2020-Present) has a strange smell coming from the AC, what's wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety.
• Allow the vehicle to cool down if the AC has been running.

2. Replace Cabin Air Filter

• Tools Required: Screwdriver, vacuum cleaner (optional)
• Locate the cabin air filter access panel, typically found behind the glove box.
• Remove the screws or clips to access the filter compartment.
• Take out the old cabin air filter and inspect the area for debris.
• Install a new cabin air filter, ensuring it is oriented correctly.
• Reassemble the access panel.

3. Clean the Evaporator Core

• Tools Required: AC cleaning spray, soft brush, vacuum cleaner
• Remove the dashboard panel or components necessary to access the evaporator core.
• Use a soft brush and vacuum cleaner to remove dust and debris from the evaporator.
• Spray an AC cleaning solution on the evaporator core to eliminate mold and mildew.
• Allow the solution to sit for the recommended time, then wipe it down with a clean cloth.

4. Clear AC Drain

• Tools Required: Flexible cleaning wire or pipe cleaner
• Locate the AC drain line, usually found near the firewall.
• Use a flexible cleaning wire to clear any blockages in the drain line.
• Ensure that water drains freely from the drain line when the AC is turned on.

5. Reconnect and Test

• Reconnect the battery.
• Start the vehicle and run the AC on high for a few minutes.
• Check for any remaining smells and ensure proper airflow is restored.