Actually the process is easy if you put your hand through the door you will touch a small hose.
Sunroof drain tube cleaning.
This video is of an old volvo b.
Test the flow of each drain by pouring a small amount of water about cup down the openings of the drain where they are located near the sunroof.
Now test using a bottle of water gradually drain the water around the sunroof drain do not excessively dump as the drain is only able to remove a certain amount of water.
Open the sunroof all the way so that you can see the drain holes.
If you are having issues with water inside the cabin of your volkswagen and have a sunroof chances are your sunroof drains may be clogged.
Anyone with a sunroof should be performing this maintenance on a regular basis.
Water leaks caused by a clogged sunroof drain are very common and easy to cure.
As you can see the water is draining properly.
These should be self evident and located in the front and rear corners of the sunroof area.
Video tutorial on how to unplug a sunroof drain.
Depending on where you live sunroof drains may become plugged sooner than later.
In this tutorial we show you the cheapest and easiest way.
Don t pay someone to do this it s too easy.
Unblocking sunroof drains is easy when you can access the holes but what if you can t access them.
Well after days and days of rain we finaly got some dry sunny weather today 5 7 12 so i set about with vigour tackling the leak on my sunroof drainage tubes which if left unchecked will sooner or later leave you with water in your footwells front and rear because i got caught out with all this rain and did not check mine in time i have ended up with a sodden.
Keeping these clean will prevent leaks and water damage and ensure rainwater is properly drained from the car.
If the problem persists there may have been a drain you missed a faulty seal or faulty drain.