my Skoda Octavia NFL (2020-Present) has water leaks after heavy rain, what could be wrong?

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface.
• Disconnect the battery if electrical components will be disturbed.

2. Inspect and Replace Door Seals

• Tools Required: Trim removal tool, adhesive, clean cloth
  • Remove any trim panels around the door seals.
  • Check the integrity of the seals; if damaged, clean the surface and apply new adhesive.
  • Press new seals into place, ensuring a tight fit.

3. Clear Sunroof Drainage

• Tools Required: Compressed air or flexible wire
  • Locate the sunroof drainage tubes (usually in the corners).
  • Use compressed air or a flexible wire to clear any blockages.
  • Test drainage by pouring water into the sunroof channel and observing flow.

4. Reseal Windshield and Rear Window

• Tools Required: Caulking gun, automotive sealant
  • Inspect the windshield and rear window seals for gaps or deterioration.
  • Carefully apply automotive sealant around the edges where necessary.
  • Smooth the sealant for a clean finish and allow it to cure as per manufacturer instructions.

5. Repair Underbody and Grommets

• Tools Required: Pliers, replacement grommets, sealant
  • Inspect the underbody for rust or holes; repair using appropriate metal patches and sealant.
  • Replace any damaged grommets surrounding wiring harnesses to ensure a watertight seal.