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View Full Version : Audi A4 2.5 TDI 1998 Immo off



Milicija
21st January, 2015, 09:09 PM
Hello,

I need immo off for Audi A4 2.5 TDI 110 kW. The problem is that the car is 2002 year should be with 114 kW engine module, but I did some digging found that before it was right hand drive, now its left hand drive (big mess with wires)... The ECM is from 1998 year old 2.5 TDI, it seems that the engine bay wiring also... At the moment car starts and shuts (immo problem). Previously owner did drive it (dash is from 2002 year audi, found an VAG IMMO emulator, seems corroded, tried reheating, but same result). OBD doesn't work, wanted to connect directly, but as I can see in wiring diagrams the 110 kW ecm "talks" with VCDS through instrument cluster, and the 114 kW ecu has direct connection with OBD 7 pin.

The ecu is 8D0 907 401 A, 0 281 001 774. Tried to read or write the B58253 EEprom (When I read it I get FF FF..., if try to write get error). Same with 3 different programmers. Bought new 24C02 EEprom. Could anyone give me dump with immo off for this kind of ecm? :)

Couldn't find any exact 8D0 907 401 A immo dumps, but found that replacement: 8D0907401A >> 8D0907401E >> 8D0907401H, so I could find if needed.

SRACHIDS
22nd January, 2015, 02:17 AM
May help you
good luck

Milicija
22nd January, 2015, 02:11 PM
Thank you for sharing, unfortunatelly the dumps didn't work. Anyway the car is running now, managed to connect directly through ecu D32 pin (K-line) (my fault in first post about ecm communicating OBD via instrument cluster), just to be sure that its the immo problem... Then did some testing on old Immo emulator and found that its IC damaged, so bought new one for 15 Euros and its running :)