Mine seen to beam too low. Can you alter the angle? They move up and down when I start but the length of beam is too short fog me. Anyideas?

All I can tell you is that they are (as far as I am aware) self levelling, hence the little dance at the start as they reset them selves.

Can be adjusted in VCDS only. You need someone who has the kit to use it and aiming equipment.

as per here

http://www.ross-tech.com/vag-com/cars/xenonalignment.html

you will also need an aiming thing

t.

There's a sensor or two that might be set incorrectly and can result in the headlights aimed so low as to be useless. This is fairly obvious when it happens, probably most likely after some work has been done on the suspension!

If the dipped beam seems slightly too low it's almost certainly a combination of the beam pattern -- a step up to the left of centre rather than angled up as normal headlights -- and that the bulb output reduces over time. On another car I had the bulbs replaced (with oem spec.) at 5-6 years. The difference wasn't great but significant enough to make a difference when driving.

Frustratingly, the life of HID bulbs is something that isn't discussed much or else people think they're good for the life of the car. Certain behaviours shorten bulb life, besides normal usage. In particular, switching the lights on immediately after switching them off isn't good.