Posted here because the headlights on the X300 and X308 are so similar.

Brutal mentioned it once. Which post eludes me after hours of searching over the last
two days.

Each of the headlights has two adjusters. The vertical adjuster is easy to find. That is the
one most people use.

But, there is also a secondary adjuster for the horizontal adjustment which is harder to
find and reach. They are reached through the four holes in the top of the radiator support panel.

Has anyone successfully reached the secondary adjuster for the left side low beam? The
joint for the fender seems to be in the way.

The head is turned with an allen key. Does anyone know the size?

 

The adjuster is on the outside part of the inner wing panel (between wing and inner panel) You go through the hole at about 45 degrees. My car has a cross point head fitting not an allen key socket. (I had to change one as a previous cowboy had turned it to full adjustment and stripped the head so you couldn't adjust it.)
good luck

 

Thanks for clearing that up.

The pictures on ebay looked like an allen socket head. But nothing like confirmation
from someone who has just had one in their hands.

Jim Butterworh published a page mentioning posidrive, so phillips is close enough

The left one seems to be much harder to access than the right one. Especially
when the tool is not seating