3280busby

Hi there, I have a 2003 C8 and it has just failed its MOT for a few bits all but one are now fixed, The last remaining problem seems to be even testing the garage? The alto level lights are set two low, we found the small Allen key night adjuster on the top of the light unit but this was already At its max height!? They have now suggested taking it to a main dealer? But this is starting to sound expensive!! I don't so pose anyone has any ideas on Somthing else to try? Many thanks Adam.