Quote Originally Posted by glen-sj
Read this acticle on changing A/T fluid and filter. It'll give you an idea of what it entail. I've sucessfully done it on my 92 525, I went as far as flushing the entire transmission, with this you'll need helpers. I'm currently working to do the fluid and filter change on my 95 530.
Here is the acticle by Pelican Parts - http://www.pelicanparts.com/bmw/tech...Fluid_Auto.htm

90 535 should be way easier....drian plug, one pan and a dip stick