I've been trying to get you to confirm and show how/why you think N/A B5's are immo2 equipped (although latently), rather than immo3 equipped like the ROW B5 RS4's.  Did you ever get around to taking picks of the back of your 'immo2 equipped N/A B5 S4 cluster'?

Are the ROW B5 S4's (not RS4's) immo2 or immo3?  If they're immo3 as well, I can't imagine that Audi equipped every other B5 with immo3, and latently equipped the NA B5 with immo2.  They would have no reason to change compared to ROW cars, especially since immo is not even active in NA cars and was just left in there anyways.

Ah, well B5 could definitely be different either way.  And if you don't have a verified immo3 cluster to compare it with, then it's kinda pointless anyways.  I'd say not to go to the effort of removing it in the cold.

We have enough European tuners in here that know exactly which immo their B5 S4's and RS4's have, so verification shouldn't be tough.

usa b5's are NOT immo2. they have no immo.

I know, I was generalizing based on the year, and what generation immo would have been equipped if available. My observations are based primarily on c5's, which I was under the impression were 2. However I can't imagine that to be true if it's confirmed ROW b5's were immo-3.

Has anyone pulled the trim off their steering columns (b5 guys) to see if the RFID receiver coil is installed? I know on my 2000 a6 it was, and that didn't come with immo (although now it does).

Not all of us have Euro-spec cars to VCDS...

For sure. I thought you were specifically addressing me.