the one that you turn as opposed to push, to further dip the beams if you got a lot of stuff in the back, apparently i have been told that they dont work on like 90% of felicias, is the fault in the switch os the lamps and is it worth replacing?

its just the only thing that doesnt work on the car and its nice to be able to say everything 100% works lol

The fault is that it's controlled hydraulically by a fluid inside the tube and over time this leaks out. You have to replace the unit as a whole, and in my opinion it's not worth going to the effort or cost of sorting out as it will cost about £40-50 and probably fail again in a number of years.

oh i see, are they not electric on most cars? ill just have to hope they in the right place.

i wont bother fixing them

Just make sure you get the headlights set each year before MoT and you'll be fine