Maybe this question sounds weird but I want to know.
So I have 2018 Megane IV GrandCoupe with Halogen Headlights system, there is any chance change those headlights to Pure Vision LED system?
Fairly certain that year Meg has the Pure Vision Lights as an option so cannot see why not.
It would be a case from what I can find of swapping complete headlight units.
Whether there is anything on wiring/heatsinks or whatever that may preclude, not a clue.