Mercedes-Benz S 450 4MATIC Operator's Manual page 719

Practical hints
Replacing bulbs
Bi-Xenon headlamps
Warning!
Do not remove the cover for the Bi-Xenon
headlamp. Because of high voltage in Xenon
lamps, it is dangerous to replace the bulb or
repair the lamp and its components. We rec-
ommend that you have such work done by a
qualified technician.
718
High beam flasher lamp
In vehicles with Bi-Xenon headlamps, you
G
can only change the halogen bulb for the
high-beam flasher lamp.
1 Bulb holder
2 Wire position
3 Grip
Turn cover 2 ( page 717) counter-
clockwise and remove it.
Turn bulb holder 1 counterclockwise
until it disengages.
Take out bulb holder 1.
Take bulb out of holder.
Insert new bulb into holder and press it
all the way down.
The tab of the bulb holder must be po-
sitioned on the upper left-hand side
and wire 2 must point upward and to
the right for the left headlamp, down-
ward and to the left for the right head-
lamp.
Turn bulb holder clockwise until it en-
gages and grip 3 is in a horizontal po-
sition.