With the sun roof all the way open you will find the front drain holes in the corners. Give the holes a prod to try and cleen them up. If you open the front doors you will find a black ruber gromit inbetween the two hinges that sticks out. If you play with this by open you will probably get a lot of crud fall out of it. If you have a air line it would be good to blow down the drin hole and try and keep the ruber gromits open to pust the rubish out. Hope that helps