Audi A3 shows 999.999km

[Tawe]

Hi. It is about 2001 Audi A3 1.9tdi, dash Magneti Marelli Jaeger with HC12 (3K91D).
Original dash had some problem, so customer bought new.


I've read MCU dump from original dash, and wrote it on the new (used) dash, everything works, but now dash shows 999.999km.


I tried many combinations with mileage, tried to make it 0 (many rows with FF and 00 - to adapt later with VCDS), but still shows 999.999.


In dash correction softwares, KM is okey (204.498km).


I don't have Digiprog (which should have repair option for this), but Carprog, VCDS, VAG K+CAN Commander..


I attached original dump, and dump which I've read after dash show 999999.

[nikz]

post orig dump new (used) dash

[Tawe]

post orig dump new (used) dash
Here is it :)

[Tawe]

Solved. I wrote back original dump from used dash (with corrected mileage), and then adapted dash to ecu, and matched keys :)