No me...but a friend. His wife's BMW wasn't shifting as nice as before. It's a few years old...maybe a 2008 or so. It's one of the one's with no dipsticks for checking anything. Anyways, the decision is made to drain the tranny, replace the filter and replace fluid with Amsoil into tranny. So he drops the pan....and finds out that the tranny filter is integral to the tranny pan. So basically, $230 for a transmission filter. FFS....
After he gets the car all back together it shifts as well as brand new...so he was happy. Except for the $230 transmission filter....