Retrofit Climatronic

Hi all

I know this is an old topic, but I really need work this out because i need to sell my car.

Last year I replaced the climatronic in my old O2 2005, I have done the wirering mod, but I cannot start the compressor.

When trying to code it with VCDS I get error 31: request out of range no matter what i do.

the new climatronic has the following number 3t0907044AL, is this because I can't use it in my car ?