In April this year I bought an Audi A4 Avant SE 2.0, first registered 29-09-2010. We then had a dry summer and it wasn't until heavy rain in early August that I found the floor mats on the drivers side and off side rear floor well soaked. The dealer was obliging and had the car for a week to dry it out and fix the leak. They found that the drain from the ventilation system was blocked with leaves. They cleared the drain and after an alleged successful water test claimed to have fixed the fault. The work was covered by the warranty. A fortnight ago we once again had rain and the same fault occurred. The car is going back in next week for further investigation. Do you have any information on similar problems with A4s?