Need new sunroof seal. There was rust oround the edge of the sunroof, on the actual roof it self. Took it to get it repeared and need a new seal. Went to BMW Dealer to get a new seal, they asked for the chassie No. and they gave me a different seal.Doesnt look like the one I took off. The one I took off my car was ateched on the roof its self. Not on the Sunroof.And the new one is glue on type. Dont know what to do. Help please!