Has anyone done a Transmission filter and fluid change and caused more issues?

[bcredliner]

Sunny, you need to chill. Your approach comprises your position. Hard to think much of what you post just because of the way you go about them. FYI-I would say there is quite a difference between the use of your and you're----your car---you are car. I get your intention but not a good analogy.

Anyone could have the correct answer on this issue. Until the designer of the particular BMW transmission weighs in there is no way to be sure of what to do or why to do it.

Since there is no definitive answer, I bank on years of experience running many different types of transmissions in performance vehicles. I have always changed the fluid and filter on some reasonable interval. Worked then works now.