> Roll that one by me again? My Corrado's Euro headlights don't have
> adjustment motors. What are you talking about?
> 

Gotta have the euro headlight frame with part 535 941 295 A - "headlight 
range control motor" behind it instead of the standard 535 941 297 - 
"adapter with adjusting screw for vertical adjustment"
It is, apparently, optional.