Thanks but that's quite confusing, it lists the 7590911, 7590912 and 7590914 but It doesn't come up with anything if you search for 7590913, but that is the one that has many listed on ebay

Does anyone know if a diff, part number 7590913 is a straight swap for the 7590912 ? They are both 3.15 ratio but I don't know if the drive shafts etc are the same. Car is a 2010 X5 3.0 xdrive diesel with an 8 speed Auto box. And advice would be gratefully received.