Another short question gentleman, its replacing the auto trans fluid. There is a good writeup here;

http://www.pelicanparts.com/bmw/tech...Fluid_Auto.htm

I need some "lifetime" fluid, TIS suggests Esso LT 71 141 BMW part number - 83 22 9 407 807 and it also says not to mix lifetime fluid with "normal" fluid. Besides the dealer, were can I purchase this in Australia?