I need to take out the headlampunits. The two outer bolts come loose but not the two inner nuts mounted to the grille/bodypart. They are rusted and the boltpart going into the lampassembly turns too, I think they are slotted in some plasticpart inside the housing.
Can I simply grind off the nuts and replace the bolts not doing something stupid irreverseble? Why do I want the units out? The adjustment mechanism is corroded and won't adjust, I want to set them a bit lower.