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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the ignition is off.
• Disconnect the battery to avoid any electrical issues while working.

2. Replace Cabin Air Filter

• Sub-steps:
  1. Locate the cabin air filter compartment (typically behind the glove box).
  2. Remove the glove box by detaching any securing screws or clips.
  3. Open the cabin air filter cover and remove the old filter.
  4. Insert the new cabin air filter, ensuring it is oriented correctly.
  5. Reassemble the glove box and secure it back in place.

3. Clean the Evaporator Core

• Sub-steps:
  1. Access the evaporator core by removing the HVAC housing if necessary.
  2. Use a specialized HVAC cleaner or a mixture of water and vinegar to spray on the evaporator core.
  3. Allow it to sit for 15-20 minutes to disinfect and kill mold.
  4. Rinse with clean water if applicable and allow it to dry completely before reassembly.

4. Inspect and Clear Drainage System

• Sub-steps:
  1. Locate the drainage tube for the evaporator.
  2. Use a flexible wire or compressed air to clear any blockages in the drainage system.
  3. Ensure that the tube is securely attached to prevent leaks.