mircondini That's what confuses me, your car is a Citroen C4, but I checked on the official XP site that you should use the following CANBUS box. You are using the wrong model, and selecting the model in DUDU is also wrong (your car is a Citroen C4, but Mitsubishi is selected, and the DUDU list has the -XP-Citroen- option).

I just want to express this problem. XP does not help us when your car uses a model number that does not match the CANBUS box in the XP public information.

I would suggest that you replace it with a model that matches the correct model in the XP public information. I don't know what information it would provide (since I don't own the car, I can't answer you exactly). But XP can only help us if we have problems with the correct model CANBUS box!
You can contact mekede sales to double-check!