Hi, recently my Fiat Grande Punto has been having leak problems. Rainwater seems to somehow be getting inside and soaking into the sponge thing on top of the windscreen and then drip down. I tried sealing around the windscreen with silicone but nothing changed. Has anyone had the same problem and what could the cause be. It's hard to diagnose the location of the leak recently as it has been raining almost every day for past month so I am unable to get it dry and see where the water could be coming through.