Hello together, I followed the advice today and checked the water drains on my car, I noticed that the left front hole on the sliding roof does not allow water. Now I have read you should try it with compressed air, but wanted to secure me here again and ask if there can’t burst anything in the A pillar or something, not that my drains because I want to get the drain free. Another question, I have read that if the car is drunk, one should pull a plug under the car so that the water can run off, why not just leave the plug outside ?? Greeting