If you are from canada, then you probably already have the euro vacuum light switch installed. Next to your rotating switch for your headlights, is there a little switch that looks like a fader switch? If so you have the vacuum adjust already.
the 500E euro lights are far superior to any other w124 euro light. Are you still interested in this group buy? I am trying to wrap things up within a week or two. For conversion rates look at
www.xe.com also I would need you to send me funds in US dollars, and also the easiest way might be through paypal if you have that because it will do the conversion for you.
Let me know.