Looking back at my emails with the son in law, reminded me that Jean Dikdan at Bimmer Workshop, who did several minor service/repair items on the E53, mentioned that he does a lot of work for local BMW CCA members. I was impressed with his knowledge, and he talked me out of having the auto tranny drained/filter replaced in the 2001 E53, with 80k miles on it. That he talked me out of it indicates he knew his stuff .... Pierce330, from the original post, looks like its at a dealer.

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2006 X5 3.0 6-spd w/Evo UUC ssk
sport/premium pkgs
born Valentine's Day, 2006.