Mercedes-Benz S-Class Operator's Manual page 395

Halogen headlamp
Press the tab on cover 3 and remove
cover.
Pull connector 7 off of the lamp.
Release the retaining springs and take
out the bulb.
Insert the new bulb in the socket so
that the base is in the recess on the
lower left.
Attach the retaining springs.
Insert connector 7 into the bulb.
Press cover 3 onto the housing until
the tab engages.
Replacing halogen high beam bulbs
Press the tab on cover 2 and remove
cover.
Pull connector 6 off of the bulb.
Apply pressure on the bulb contacts
from above until the bulb releases from
the retaining springs.
Remove bulb.
Insert the new bulb in the socket with
the marking facing upward.
Press the bulb upward on the contacts
until it engages in the retaining springs.
Insert connector 6 onto the bulb.
Press cover 2 onto the housing until
the tab engages.
Practical hints
Replacing bulbs
Front turn signal lamp bulb
Turn bulb socket 8 counterclockwise
and pull out.
Gently push bulb into socket, turn
counterclockwise and remove.
Insert new bulb in socket, push in and
twist clockwise.
Reinstall bulb socket in lamp and twist
clockwise until it engages.
393