ok open your fusebox on the side of the dash starting from the top left you should have a airbag symbol on fuse 1, after fuse number 3 there is a blank with the symbol for highbeam you can see two metel sockets in the hole, in the instruction manual it says not in use or somthing like that. Put in a 10 amp fuse and your lowbeam will now stay on when highbeam. I have a clio 1999 and it should be the same on yours, let me know how it goes!