JABBARA,
I'm certainly glad that I included the phrase "No DME that I know of has the means to "electronically" reposition itself" in my post, Alex Whittingham's remarks that "I understand some modern equipment has the capability to change the timing correction on the DME as the ILS is changed from one runway to another" come as a complete surprise to me. I'm not sure if Alex is referring to the ground equipment or the aircraft equipment.
My best response, in view of the doubts that Alex has cast, is that this DME correction would PROBABLY arise only in ILS mode, and not affect the "pure" DME mode if used in isolation to ILS mode, that is, for a DME-DME update. Reference to the FMC Navaid data-base certainly indicates differing locations for the Localiser and the DME, you can bet your last Euro that I'll be looking at the Nav Data-base for Innsbruk next time I fly.
With respect to your last question, I would not inhibit a DME unless shown as unreliable in a NOTAM. VOR inhibit is another story.
JABBARA, my experience is not all that vast, but sufficient to know when to stand correction. Don't apologise for your English, it's better than mine - I was edjercated in Awstralya, diddun cha know?.
Regards
Old Smokey