how to fix water leaks inside my Volkswagen Golf MK7 (2015-2019)?

Solution

1. Preparation

• Gather necessary tools and parts.
• Make sure the vehicle is parked on a level surface.
• Disconnect the battery if working on electrical components.

2. Inspect and Replace Door Seals

1. Open the doors and examine the rubber seals for cracks or wear.
2. If damaged, carefully pry off the old seal using a trim removal tool.
3. Clean the area where the seal attaches using a solvent to remove dirt.
4. Install the new door seal by pressing it firmly into place, ensuring it sits evenly.

3. Clear Sunroof Drains

1. Open the sunroof completely.
2. Locate the drain holes at each corner of the sunroof.
3. Use a compressed air canister or a flexible wire to clear any obstructions in the drain tubes.
4. Test the drains by pouring a small amount of water into the sunroof tray and ensuring it drains properly.

4. Reseal Windshield

1. Inspect the windshield for any visible cracks or gaps in the sealant.
2. If necessary, carefully remove any loose sealant with a razor blade.
3. Clean the area thoroughly with a glass cleaner.
4. Apply a high-quality automotive sealant around the edges of the windshield.
5. Allow the sealant to cure according to the manufacturer's instructions before using the vehicle.

5. Check Drainage Channels

1. Open the hood and locate the drainage channels.
2. Inspect for debris or blockages that could impede proper drainage.
3. Clear any obstructions using a vacuum or compressed air.
4. Ensure that the channels direct water away from critical areas.

6. Seal Firewall Gaps

1. Inspect the firewall for any visible holes or gaps.
2. Use a rubber grommet or silicone sealant to fill any detected holes.
3. Ensure that all wiring and hoses are properly seated and sealed.