I had a very light bump the other day and I just noticed that both plast clips that secure the light to the front pannel of the car are broken. These clips seem to be part of the headlight unit. I have screwed the clips down as best I can to secure the light in place but the beam may not be perfectly allighned. So my question is will the headlight still be able to be adjusted with these clips broken as I have no idea how the adjustment is done? also how much is a replacement part?