I too took delivery of new replacement car back in March this year... If all the old posts were still on here my plight would be there.. All I will say is yes the new seals work....as long as you fit the arches correctly! Mine did leak twice after I had removed the arches but after taking it back to the dealer and them looking at it it doesn't leak...so my only warning is to take your time and ensure you fit the arch correctly. I have been told the best way is to insert the front prong while holding the arch at an angle into the car then swing the back into position, effectivlely pushing the front of the arch into the outside seal to creat good seal. my old car with 5000 miles on the clock and 03 reg went back on sale at the dealership for £9000! but I also negocitated a deal on exchange for £500 worth of accessories....so its worth persisting... Gar :huh: