thanks Abe for that link. I'll copy the most useful bits -
low-beam, for a headlight or front fog light fitted to a vehicle, means
that the light is built or adjusted so that, when the vehicle is standing
on level ground, the top of the main beam of light projected is —
(a) not higher than the centre of the headlight or fog light, when
measured 8 m in front of the vehicle; and
(b) not more than 1 m higher than the level where the motor
vehicle is standing, when measured 25 m in front of the
vehicle;
and
high-beam, for a headlight or front fog light fitted to a vehicle, means
that the light is built or adjusted so that, when the vehicle is standing
on level ground, the top of the main beam of light projected is above
the low-beam position;
and, there is a handy little diagram, that I can't work out how to cut & paste it.
The Owner's Manual tells you what bulbs you need, and how to replace a bulb, but nothing about how to adjust them.
On each side of the car there are two nylon screws, which you approach with your screwdriver in a vertical position.
One screw is for low- and the other is high-beam.
There is an illustration with the 1.1% that Phantom mentions. Near that is a double-headed arrow, and the letters L (lower) and R (raise).
Find a level surface to park on, with a blank wall 8m away (shopping-centre car park, when no-one else is around), and a few minutes later, you'll be right !