Connection problem with part number 7M3 907 040 B

Hello Forum Users,

I would like to replace the Sharan climate control unit with part number 7M0 907 040 BC with a newer one.
Replace part number 7M3 907 040 B. However, it doesn't work, even though the connectors are connected.
identisch sind. Meine Idee ist nun, ein Adapterkabel zu verbauen. I am missing...
however, the connection terminals of the two control units.
Can this man be helped?

Thank you very much.

-SHA

What's not working?

If the plug fits, it can't be that bad.

What's not working?

If the plug fits, it can't be that bad.

Hello VAGtuning,

Actually, the question should be: What actually works?
It only works with the lighting; nothing else functions.
No blowers, no temperature display, no damper motors.
and engaging the compressor is even worse.

By the way, there are three plugs with the colors red, blue, and white.
I would say they are different for the two control units.
confirmed, because nothing is working.

Thank you.

-SHA