mercedes clk 220

Hey guys, Is anyone knowing as to how CLKs headlamp can be adjusted. Merc dealer said it can be done by a headlamp adjuster switch behind the headlamp cap which will need to be adjusted. I just wonder if anyone know exactly where it is. Thanks Mykhailo

Hi fellow Merc owners. Will it be OK to charge a battery in Mercedes CLK 220 CDI 2.1L without disconnecting positive & negative contacts or will I be better off just disconnect the ground (-) only? Thanks Mykhailo