I am the 2nd owner of a 06 330XI that appears to have had some suspension work done to it prior to me owning the car. This work apparently wasnt done at a BMW dealership due to no records. I was not told of any issues with the car when I bought it, but I am now having some warranty issues. I was told by the local dealership that if I was able to get the numbers off of the tags on the BMW replacement parts that I should be able to track that number and find out where the parts came from and when they were distributed. Does anyone know how to do this? It is a drivers side rear suspension part and the number is (33 32 6 763 477). I would be greateful for any help...I am now looking at approx 5k in repairs that should be covered...Thanks