Page 370 of 474
368 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
.
STANDING LIGHT, L
CHECK LIGHT
The left front parking lamp is malfunction-
ing.
Replace the bulb as soon as possible.
STANDING LIGHT, R
CHECK LIGHT
The right front parking signal lamp is mal-
functioning.
Replace the bulb as soon as possible.
STANDING LIGHT, L
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left rear parking signal lamp is mal-
functioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
STANDING LIGHT, R
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right rear parking signal lamp is mal-
functioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
TAIL LIGHT, LEFT
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left tail lamp is malfunctioning. A sub-
stitute bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, RIGHT
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right tail lamp is malfunctioning. A
substitute bulb is being used.
Replace the bulb as soon as possible.
TURN OFF LIGHTS
Lamps have been turned on although the
SmartKey in the ignition is in position 0.
Turn the exterior lamp switch to M
(page 50).
Page 371 of 474
369 Practical hints
What to do if …?
Display
Possible cause
Possible solution
.
FRONT TURN SIGNAL, L
CHECK LIGHT
The left front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
FRONT TURN SIGNAL, R
CHECK LIGHT
The right front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, L
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, R
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
MIRROR TURN SIG., L
CHECK LIGHT
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
MIRROR TURN SIG., R
CHECK LIGHT
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 395 of 474
393 Practical hints
Replacing bulbs
Halogen headlamp
Press the tab on cover3 and remove
cover.
Pull connector7 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 connector7 into the bulb.
Press cover3 onto the housing until
the tab engages.Replacing halogen high beam bulbs
Press the tab on cover2 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 connector6 onto the bulb.
Press cover2 onto the housing until
the tab engages.Front turn signal lamp bulb
Turn bulb socket8 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.