
that these function correctly at all times.
Have the headlamp setting checked regularly.
Before changing bulbs
Have the following bulbs changed at a
qualified specialist workshop:
R Additional turn signals in the exterior
mirrors
R High-mounted brake lamp
R High-beam/low-beam headlamps (Xenon
bulbs)
R Daytime running lamps
R Parking lamps/standing lamps
R License plate lamp
i Individual segments of the license plate
lamp LEDs may fail without a display
message appearing in the multifunction
display. Regularly check the license plate
lamp. If necessary, visit a qualified
specialist workshop.
You can replace the following bulbs:
R Fog lamp/cornering light with fog lamp
function
R Turn signal lamp (front)
R Brake/tail lamp
R Turn signal lamp (rear)
R Tail lamps/standing lamps
R Backup lamp
R Rear fog lamp
R Side marker lamps G
WARNING
Bulbs and lamps can become very hot. For
this reason, allow them to cool down before
changing them. Otherwise, you could burn
yourself when you touch them.
Keep bulbs out of the reach of children.
Otherwise, they could, for example, damage
the bulbs and injure themselves.
Never use a bulb which has been dropped.
Such a bulb may explode and injure you.
Halogen bulbs are pressurized and could
explode when you change them, especially if
they are very hot. You should therefore wear eye protection and gloves when you are
changing them.
Other bulbs
There are bulbs other than the Xenon bulbs
that you cannot replace. Replace only the
bulbs listed (Y page 109). Have the bulbs that
you cannot replace yourself changed at a
qualified specialist workshop.
If you require assistance changing bulbs,
consult a qualified specialist workshop.
Do not touch the glass tube of new bulbs with
your bare hands. Even minor contamination
can burn into the glass surface and reduce
the service life of the bulbs. Always use a lint-
free cloth or only touch the base of the bulb
when installing.
Only use bulbs of the correct type.
If the new bulb still does not light up, consult
a qualified specialist workshop.
Bulbs and lamps are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times.
Have the headlamp setting checked regularly. Overview: changing bulbs/bulb types
Front bulbs You can replace the following bulbs. The bulb
type can be found in the legend.
0043
Turn signal lamp: 1156 NA
0044 Side marker lamp: T 4 W
0087 Cornering light function with fog lamp
function: H11 55 W (except AMG vehicles) Replacing bulbs
109Lights andwindshield wipers Z 

Rear bulbs
You can replace the following bulbs. The bulb
type can be found in the legend. 0043
Tail lamp/standing lamp: W 5 W
0044 Brake lamp/tail lamp: P 21/5 W
0087 Turn signal lamp: PY 21 W
0085 Side marker lamp: T 4 W
0083 Backup lamp: P 21 W
0084 Rear fog lamp: P 21 W Changing the front bulbs
Front fog lamps/cornering lamps with
fog lamp function X
Switch off the lights.
X Unscrew screws 0043.
X Remove cover 0044. X
Unscrew screws 0087.
i Only remove screws 0087. Do not turn
adjustment screw 0085. If adjustment
screw 0085has been turned, the front fog
lamp adjustment must be checked at a
qualified workshop.
X Remove lamp 0083. X
Hold lamp 0083.
X Lightly press bulb holder 0084, turn it
counter-clockwise to the stop and pull it
out. 110
Replacing bulbsLights and windshield wipers 

X
Take bulb 006Bout of bulb holder 0084.
X Insert the new bulb into bulb holder 0084.
X Insert bulb holder 0084into lamp 0083and turn
it clockwise to the stop.
X Insert lamp 0083.
X Replace and tighten screws 0087.
X Position cover 0044.
X Replace and tighten screws 0043.
Turn signal !
Make sure that the protective grille does
not hit any painted surfaces.
You could otherwise damage the
paintwork.
! Do not fasten the screws too tightly. You
could otherwise damage the lens. Turn signal lamp with protection grille (AMG
vehicles)
X
Switch off the lights.
X AMG vehicles: pull protection grille 0043in
the direction of the arrow out of
mounting 0044.
X Fold up protection grille 0043. Example: turn signal lamp
X
Switch off the lights.
X Unscrew screws 0087.
X Remove lens 0085. Example: turn signal lamp Replacing bulbs
111Lights and windshield wipers Z 

X
Turn bulb 0083counter-clockwise, applying
slight pressure, and remove it from the bulb
holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages.
X Install lens 0085.
X Replace and tighten screws 0087.
X AMG vehicles: fold down protection
grille 0043and allow it to engage in
mounting 0044.
Side marker lamps !
Do not fasten the screws too tightly. You
could otherwise damage the lens. Front side marker lamp (example)
The bulbs of the front and rear side marker
lamps are changed in the same way.
X Switch off the lights.
X Unscrew screws 0043.
X Remove housing 0044. X
Remove dust cover 0087.
X Push the catch to the side and pull the bulb
holder with the bulb out of housing 0044. X
Lightly press bulb 0085, turn it counter-
clockwise and pull it out.
X Insert the new bulb and, applying slight
pressure, turn it clockwise until it engages.
X Insert the bulb holder into housing 0044.
X Attach dust cover 0087.
X Insert housing 0044.
X Replace and tighten screws 0043. Changing the rear bulbs
G 55 AMG only: protective grille !
Make sure that the protective grille does
not hit any painted surfaces.
You could otherwise damage the
paintwork. Protection grille (AMG vehicles)
You must remove the protective grille before
you can change the bulbs in the tail lamps.112
Replacing bulbsLights and windshield wipers 

X
Unscrew screws 0044.
X Swing protection grille 0043to the right.
X After changing the bulbs, swing protection
grille 0043to the left.
X Tighten screws 0044.
Tail lamp !
When installing the lens, make sure that
the seal is positioned correctly.
! Do not fasten the screws too tightly. You
could otherwise damage the lens. X
Switch off the lights.
X Unscrew screws 0043.
X Remove lens 0044. 0087
Turn signal
0085 Brake/tail lamp
0083 Tail lamp/standing lamp X
Turn the corresponding bulb counter-
clockwise, applying slight pressure, and
remove it from the bulb holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages.
X Install lens 0044.
X Replace and tighten screws 0043.
X AMG vehicles: secure the protection grille
(Y page 112).
Backup lamp/rear fog lamp !
Do not fasten the screws too tightly. You
could otherwise damage the lens. Example: rear fog lamp
X
Switch off the lights.
X Unscrew screws 0044.
X Remove lens 0043. X
Turn bulb 0087anti-clockwise, applying slight
pressure, and remove it from the bulb
holder.
X Insert the new bulb into the bulb holder and
turn it clockwise until it engages. Replacing bulbs
113Lights and windshield wipers Z 

Display messages Possible causes/consequences and
0050
0050Solutions Front Passenger
Front Passenger
Airbag Disabled Airbag Disabled
See Operator's See Operator's
Manual Manual A special BabySmart™-compatible child restraint system is
mounted on the front-passenger seat.
The
00730074 indicator lamp also lights up.
The front-passenger air bag is therefore disabled.
Further information on BabySmart™(Y page 44).Front Passenger Front Passenger
Airbag Airbag
Enabled
Enabled See
See
Operator's Manual
Operator's Manual The
00730074 indicator lamp does not remain lit if a special
BabySmart™-compatible child restraint system has been installed
on the front-passenger seat.
The BabySmart™ system is malfunctioning.
G WARNING
The front-passenger front air bag can be triggered unintentionally
in the event of an accident.
There is a risk of an accident.
X Make sure there is nothing between the seat and the child
restraint system.
X Check that the child restraint system is installed correctly.
X If the 00730074 indicator lamp does not light up, have the
BabySmart™ system checked as soon as possible at a qualified
specialist workshop.
Do not transport a child on the front-passenger seat until the
air bag deactivation system has been repaired. Lights
i Display messages about LEDs:
This display message will only appear if all LEDs have failed. Display messages Possible causes/consequences and
0050 0050Solutions 0049
Check Left Low Check Left Low
Beam Beam
orCheck
Check
Right Low Beam
Right Low Beam The left or right-hand low-beam headlamp is defective.
X
Visit a qualified specialist workshop. 0049
Check Check
Trailer
Trailer Left
Left
Tail Lamp
Tail Lamp orCheck
Check
Trailer
Trailer Right
RightTail
Tail
Lamp
Lamp The left or right-hand trailer tail lamp is faulty.
X
Check whether you are permitted to change the bulb yourself.
or
X Visit a qualified specialist workshop. 226
Display
messagesOn-board computer and displays 

Display messages Possible causes/consequences and
0050
0050Solutions 0049
Check Check
Trailer
Trailer Left
Left
Turn Signal
Turn Signal or
Check Trailer
Check Trailer
Right Turn Signal Right Turn Signal The left or right-hand trailer turn signal lamp is defective.
X
Check whether you are permitted to change the bulb yourself.
or
X Visit a qualified specialist workshop. 0049
Check Trailer Check Trailer
Brake Lamp Brake Lamp The trailer brake lamp is defective.
X
Check whether you are permitted to change the bulb yourself.
or
X Visit a qualified specialist workshop. 0049
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right
Check Rear Right
Turn Signal Turn Signal The rear left-hand or rear right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Turn Signal Turn Signal
or
Check Front Right
Check Front Right
Turn Signal Turn Signal The front left-hand or front right-hand turn signal is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 0049
Check Left Mirror Check Left Mirror
Turn Signal Turn Signal
or
Check
Check Right
Right Mirror
Mirror
Turn Signal
Turn Signal The turn signal in the left-hand or right-hand exterior mirror is
defective.
X
Visit a qualified specialist workshop. 0049
Check Check
Center
Center Brake
Brake
Lamp
Lamp The high-mounted brake lamp is faulty.
X
Visit a qualified specialist workshop. 0049
Check Left Brake Check Left Brake
Lamp Lampor
Check Right
Check Right
Brake Lamp
Brake Lamp The left or right-hand brake lamp is defective.
X
Replace the bulb (Y page 108). 0049
Check Left High Check Left High
Beam Beamor
Check Right
Check Right
High Beam
High Beam The left or right-hand high beam is defective.
X
Visit a qualified specialist workshop. Display
messages
227On-board computer and displays Z 

Display messages Possible causes/consequences and
0050
0050Solutions 0049
License Plate Lamp License Plate Lamp There is a short circuit in the LED lamps. The LEDs have been
switched off.
X
Visit a qualified specialist workshop. 0049
Check Left Fog Check Left Fog
Lamp Lampor
Check Right
Check Right
Fog Lamp
Fog Lamp The left-hand or right-hand front fog lamp is defective.
X
Replace the bulb (Y page 108).0049
Rear Fog Lamp Rear Fog Lamp The rear fog lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 0049
Check Front Left Check Front Left
Parking Lamp Parking Lamp
or
Check Front Right
Check Front Right
Parking Lamp Parking Lamp The front left or front right parking or standing lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 0049
Backup Light Backup Light The backup lamp is defective.
X
Replace the bulb (Y page 108).0049
Check Front Left Check Front Left
Sidemarker Sidemarker
Lamp Lampor
Check Front
Check Front
Right Sidemarker
Right Sidemarker
Lamp Lamp The left or right front side marker lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 0049
Check Left Tail Check Left Tail
Lamp Lampor
Check Right
Check Right
Tail Lamp
Tail Lamp The left or right-hand tail lamp is defective.
X
Check whether you are permitted to replace the bulb yourself
(Y page 109).
or
X Visit a qualified specialist workshop. 228
Display
messagesOn-board computer and displays