so got into car today and some water in passenger foot well not alot so far, so investigated and can see water and some corrosion under batter so can presume grommets never removed which im surprised by as previous owner has a full audi main dealer history from new till i bought it two months ago, but while investigating this i could hear an air leak in area around pollen filter but sound like it was either under water or spitting out liquid ill get better look tomorrow but any ideas?