Eprom numbers vs. ECU numbers

[RedTop]

Hallo all! I'm all new here!

Right now I'm helping out a friend who is restoring a 155 Q4. He is good at cars but an analphabetic when it comes to modern car electronics. I can spell my way through eproms and ECUs, so I'm trying to help him out.

Now, the ECU of his Q4 is marked as follows:
IAW 4W6
259 92
6160010104 7770746 Z12V=
155 2.0 TC 16V P8/P94_GA

The original BIN-files found at this site are marked 101.03, 101.04, 101.05

I assume that this ecu marked 6160010104 should have the 101.04 BIN file? Would that be correct? (I don't have info on model year of the car etc. at the moment).

The chip currently in the ECU has no marking at all, and it's an UV erasable eprom so I assume it some kind of modified chip (it doesn't even have a protective sticker over the window). I thought it could be a good idea to try to start start the car with an original SW and take it from there.

EDIT:
My friend is in another part of the country, so I haven't looked at the ECU personally. Looking closer at the picture I now see that the eprom is soldered to some adapter board, so maybe it's a tuning chip with a copy protection board? Still I think it would be good to start off with the original BIN.


/RedTop