The white plastic adjusters are 8mm if memory serves me right.
Make sure it is the correct size and a snug fit as they do round fairly easily.
What size ring spanner did you use please as my passager side bulb is pointing up after changing the bulb in it
Ah! The motor is on cars with onboard headlamp adjustment which I don't think I have on mine (1.4 Active), do I?
Tried the adjusters again in the semi dark just in case I wasn't noticing movement in the bright daylight, but no, nothing moving. Both up and down and left to right adjusters don't seem to work which I thought was a bit odd? Both adjusters turn freely but seemingly to no good effect. Any ideas, or am I missing something obvious?
As far as I know, all Stilos have the motors. If you have the optional Xenon HID headlamps, you will not have onboard adjustment because they are automatically adjusted from load sensors on the front and rear suspension. If you have the standard filament bulb headlamps, they will be adjustable up and down by 2 buttons on the MODE switch panel.