If I've got it all straight, this is the replacement cluster:
Code:
Address 17: Instruments Labels: 8E0-920-9xx-8E2.LBL
Controller: 8E0 920 950 H
Component: KOMBI+WEGFAHRS. RB4 D26
Coding: 03200
Shop #: WSC 00000
VCID: 2E2FCA7AF90F
WAUVC68E92A245311 AUZ6Z0B0021643
While this is the original:
Code:
Address 17: Instruments Labels: 8E0-920-9xx-8E2.LBL
Controller: 8E0 920 980 KX
Component: KOMBI+WEGFAHRS. RB4 D30
Coding: 00201
Shop #: WSC 00001
VCID: 8C6BE0F2AF53
WAULT68E52A099660 AUZ6Z0A0208491
Coding chart from the label file:
C00,Instrument Cluster (J285) Coding
C01,??xxx: Options
C02,+00 = 1st Distance Impulse Number (Standard - Europe/USA/Rest of World)
C03,+01 = All-Wheel-Drive/Quattro (smaller Fuel Tank Volume)
C04,+02 = Seatbelt Warning (North American Region OLD - < CW 44/2004)
C05,+04 = 3rd Distance Impulse Number (Rental Cars)
C06,+08 = 2nd Distance Impulse Number (Australia)
C07,xx?xx: Country
C08,0 = Germany (D)
C09,1 = Rest of World ()
C10,2 = United States of America (US)
C11,3 = Canada (CAN)
C12,4 = Great Britain (GB)
C13,5 = Japan (JP)
C14,6 = Saudi Arabia
C15,7 = Australia (AUS)
C16,xxx?x: Seatbelt Warning
C17,0 = Seatbelt Warning inactive (or North American Region OLD - < CW 44/2004)
C18,3 = Seatbelt Warning active (North American Region NEW - CW 45/2004 >)
C19,xxxx?: Variant
C20,0 = Variant 1
C21,1 = Variant 2 (Standard)
C22,2 = Variant 3
So the difference is that the replacement has AWD and Seatbelt warning option bits on, plus "Variant 1" while the original has "Variant 2".
But I really don't think any of this is at all related to immobilizer functionality.
Now when doing an Immo-3 parts swap, there are three components: The keys, the cluster, and the that all have to be matched to each other to have a working car. Whenever you try to match a new one (any of these three), the other two must already match, and it sounds like on your previous attempts, the keys and the had somehow lost their matching? I'm speculating here because I think you said the car wouldn't start and run even with the original cluster installed?