Mini Cooper S Headlight Adjustment

Hi All,

Please can anyone point me in the direction of some article/Offer advice
on 
how to adjust the self leveler on an 03 cooper s with xenon headlights. 
The 
lights auto level far too low in front of the car making it near enough 
impossible to see anything more than about 30 yards infront of the car on 
unlit roads.  The auto leveller works fine when driving the lights are
just 
too low.

Thanks in advance...

Ross