Here's the original thread I used, but bear in mind the 3.0si is the same on both sides as I recall. The 4.8i had something in the way on the driver's side which is described. Even though the pics are gone, you can still use the text to guide you.
http://www.xoutpost.com/bmw-sav-foru...-swap-diy.html
Here's my quick and dirty:
- below the fog light, remove the faux (plastic) diffuser by pulling on the silver horizontal piece (see attached pic) so that you have access to reach the reflector from the inside.
- use a hairdryer to melt the glue of the tape on the reflector edges
- from the outside, push in and it will eventually come off
- clean up residue before putting in the new one.
As the DIY thread states, the glue is pretty tough, so you may have to work on it a while.