Originally Posted by govtec
Just got a call back from the local dealership service advisor. They recommend that I not change the transmission oil. Of course they mention the lifetime fluid per BMW spec. He mentioned that another customer tried changing the oil himself and the customer ended up bringing the car in with transmission issue. I will try to talk to the service advisor tomorrow because he left me with a voice message. I'm having second thoughts about changing the oil now.
By the way, I just found this. See attached BMW Service and Warranty information booklet. It states on page 7 that the Automatic Transmission Fluid must be changed at 100,000 miles. Therefore, your SA and dealer don't know what they are talking about.