I've recently bought a 2007 E85 3.0Si and for some reason the front fog lights are missing. It has the switch and the dash board light comes on as if they were fitted.
Did you buy from the forum in the end? If so maybe easiest to check from the seller directly? Also before you take the plunge make sure the wiring is all there. It might be a retrofitted dash switch? I'm unsure whether all models came with fogs...
If no one has a set knocking around from the forum eBay will be your best bet. Try search for z4 breakers if you've no luck with specific facelift fog listings.
I have a set of fog lights that I took of mine not long ago when I upgraded the front bumper not sure what condition their in I'll have to check and get back to you if you're interested
I have a set of fog lights that I took of mine not long ago when I upgraded the front bumper not sure what condition their in I'll have to check and get back to you if you're interested