Thanks! That clarifies things a bit.
Reason this has come up is that I find that the hood sits a little high from headlights (or the headlights sit a bit lower than the hood line).
I keep comparing mine to other face-lifted W212s and the headlight gaps always look way better.
Kinda has me a bit worried now but since buying the car it has seen 2 specialists twice (post purchase inspection) and last service was at Mercedes in Guildford. If there was something untoward they would have picked that up for sure?