AO Platinum Member
Join Date: Aug 2003
Location: London, England
Re: 156 headlight adjustment
The adjustment moves the whole internal cluster up/down left/right
You can't adjust the main beam independently of the dip beam.
Yes the HIDs have auto-levelling, but they still need setting up to the correct level.
Poorly fitted main beam H1 bulb could be the cause of your low main beam. However I'm surprised you need main beams with HIDs, which leads me to think they are set too low.