Yep, piece of cake. Just get two folding mirrors, a replacement window/mirro switch (with square extra button) and an hour of spare time.
Take your old mirrors off. Have to remove the door card for this but no biggie. Three screws IIRC.
New mirrors just bolt on and connect to your new switch.
I didn't remove any fuses or battery. Just connected it all up and worked. No coding.
Really easy mod. Shame they dont fold on the key though...
They look exactly the same as all X5 mirrors. Just fold (about 45 degrees into the glass). I used my old casing on the new mirrors (just to labour the point).
Kev.