Yes you were correct. Just wish Fiat dealership could have been more supportive and disappointed by their brick wall approach and fees to investigate. I would assume all Fiat 500s (excluding electric versions) would have a setting to switch DLR on and off but cautious note on MOT standard for all 2018 cars to have DLR working on test.
Yep all 18 plate and onwards needs drl to work, I see many expensive mot failures happening when a fancy non repairable led unit fails and they say "££££'s " to replace as its a factory only part as they're so new?