The 500E Euro lights have no fog light. Instead, they have a pencil-beam driving light, for super-duper high beams. I never used my fogs anyway so that was OK with me. Also the 500E lights are chromed inside and just look a lot better, IMO. Here are some photos of them:
http://www.meimann.com/images/mercedes/W124_headlights/
BTW - I would NOT buy anything from Adsit! Search the forums for some threads about them. There are other vendors with much better service. For plain old Euro lights, I highly recommend PUMA (
www.puma-access.com), call them up and ask for Paul. Their price for new Hella Euros (with fogs), including new amber turn signal lenses, all 8 bulbs, connector housings, and instructions is $399 plus S&H. It's the best price I know of for German-made Euro lights, period.