I don't normally do thanks in advance, as I like to see feedback to help others, and confirm that I or others have given correct advice.
Also I do not have an x230 Ducato to compare with but I can state that what is used as an aid to identification is the relay socket colour.
The x230 uses a starter solenoid relay, with a red base. The headlight relays (Main & Dip) have blue bases. Heater fan has green base.
These four should be easy to check by pulling individual relays, and checking for non operation of particular device. Do you have a specific problem, or are you just being prepared?
For feedback please confirm that above is correct.