Originally Posted by slemmer
E38 mirrors had the power fold option?
Folding mirrors was an option in Europe, however as it was a factory specified option you never saw them in USA. Unless the car had "Shadow Line" then it had folding mirrors.
However i have since found out, all door harnesses from 09/1999 (at least for the 750iL) has the wiring for this, so i should be able to add the mirror with motors then the door button control on the driver's side, its P-Bus controlled so will work.
Dimming, is a different issue as this isnt controlled by the P-Bus system, its direct from the internal rear view mirror hardwired to the door mirrors, again 09/1999 door harness on the 750iL has the wiring for that as well (not sure about inside the car, but i think it does).