To quote from the owners manual "change of light bulbs on xenon lights should be undertaken by a specialist garage" and "xenon bulbs operate with a high voltage, professional knowledge is required, danger of death"

 

Sounds like they just want you to spend money at the dealer. 

 

Changing a D1S xenon bulb is very easy, at least on a FL. One thing to keep in mind is that the bulb is pressurized, so if you manage to drop it and break it, it can shatter. I would wear protective glasses if I was to be really careful. 

Do you have halogens in projectors or retro-fit HIDs in projectors?  The former need the kick-up; the latter not quite as much as it's very pronounced.

Halogens in projectors.

Halogens in projectors.

The kick-up is much more pronounced & sharp with the HIDs - goes higher as well.  The horizontal cut-off is also much sharper / more defined.