Exactly.

I've got a 94 E420 and have come to find out that the headlight internals are the same for both DOT and ECE spec units. The only difference being the glass lens. By replacing the lens with the ECE version I will have ECE headlights so to speak......in other words there wouldn’t be any difference between the two. The only things I'll be missing are city lights; which I want because currently I drive with my fogs on all the time acting as “DRLs”. Since I am going to be putting in high wattage bulbs, I don’t want to be killing them left and right. So now I’ve got to find a source for the city lamps.

I know a lot of W140s had city lights, as did the earlier C-classes ....any idea if these would work?