Pelicanparts has a DIY on their site with pictures. I'm a pretty big guy and was able to do it, but it sure sucked. Be sure to get the right switch. If you have cruise control then you need the 4 prong one, if not, then just 2 prong. You'll have to break out the old one. Very easy to do technically, just a pain in the neck--literally.
98 328i, black/black, manual, canadian sport pkg, ECIS intake, koni sport adj's, dinan springs, oe/oem clears.
Considering: tms shark,M 17" wheels, larger sway bars.