sorry i did not answer this on our email.
if 'dot' is etched in the lens on your lights, you would have to get euros to have this feature.
there is a grey [same color as back of light assembly] 'nipple' type fitting just above the wiring socket of the headlight assembly. this is where the vacuum line goes. this is one way to tell.
also if you open the back cover there should be a round white SMALL canister like device this is the actual adjuster.
the wiper nozzle is all boxed [small m.b.part box] up and ready to be mailed tomorrow.
in the article scroll about half way down the pix on the right show a black 'canister' device [same thing]
hope this helps