why does my Volkswagen Golf MK7 (2015-2019) have condensation issues on the windows

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked in a well-ventilated area.
• Disconnect the battery to prevent any electrical issues while working on the vehicle.

2. Inspect and Replace Seals

• Inspect Door and Window Seals:
  • Visually check all rubber seals around doors and windows for cracks, tears, or wear.
• Replace Damaged Seals:
  • Remove the old seal carefully using a trim removal tool.
  • Clean the surface area to ensure good adhesion of the new seal.
  • Apply the new seal in the same manner as the original, ensuring a snug fit.

3. Check and Replace Cabin Air Filter

• Remove the Cabin Air Filter:
  • Locate the cabin air filter housing (typically behind the glove box).
  • Open the glove box and remove any clips to access the filter.
• Inspect and Replace the Filter:
  • Remove the filter and check for dirt or moisture.
  • Install a new cabin air filter, ensuring it is oriented correctly according to airflow direction.

4. Inspect Drainage Holes

• Locate Drainage Holes:
  • Identify the drainage holes on the doors and sunroof.
• Clear Blockages:
  • Use compressed air or a small wire to remove any debris obstructing the drainage holes, ensuring proper water flow.

5. Seal Windshield/Rear Window (If Necessary)

• Inspect Seals:
  • Check for gaps in the windshield and rear window seals.
• Apply Sealant:
  • If leaks are detected, use a suitable automotive sealant to reseal any gaps.
  • Allow the sealant to cure as per manufacturer's instructions before testing.