hi Lutz, It's a 2005 enjoy, so a older model, scouring through he manual this morning seeking all references to the headlights it seems xenon headlights were a optional extra, discontinued after 2006, with the introduction of the design spec there is several items in the book that refer to washers and self leveling but none for my particular car, so you may be right and the bulbs were changed by a previous owner, having said that the fuses and relays are there as they should be, and the bulbs listed for it at halfords are xenon so it is a bit of a mystery, it has also gone through two MOT's since I bought it with no mention of it having the wrong lights fitted,