ive got an ibiza fr tdi, it was a SEAT UK car before me and i assume it had been left standing for a long time as it was 7 months old with 2k miles on, i think it must have been left under/by trees, as ive noticed that the seal on the front windows (bottom on both) are covered in moss, not the rubber bit that patrudes and sits on the door but the material that seals the window when in ether the up or down position, any advice?? plz