Me too, 50k of hard tracked miles on mine and all I do is regular maintenance. When I bought the car, I had to do the rear main seal, which required me to pull the tranny. When I reinstalled it and programmed the SMG adaptations, the pump would not pass tolerances and had to be replaced (kinda sucked since it was working fine). When I installed my aftermarket Schrick cams, the VANOS also would not pass adaptations, so it was replaced. Same reason, other then those 2 things (and subframe reinforcements) the car is incredibly reliable!
My YouTube video
-- RANDY SPARRE --