Page 15 of 400

15 Introduction
Symbols
Symbols
The following symbols are found in this 
Operator’s Manual:
* Optional equipment is identified 
with an asterisk. Since standard 
equipment varies between models, 
the descriptions and illustrations in 
this manual may differ slightly from 
the actual equipment of your vehi-
cle.
This symbol points to instructions for 
you to follow. 
A number of these symbols appearing 
in succession indicates a multiple-step 
procedure.
 Page This symbol tells you where to 
look for further information on a 
topic.
This continuation symbol marks 
an interrupted procedure which 
will be continued on the next 
page.
-> In the glossary of technical 
terms, this symbol is used to 
indicate cross-references to 
term definitions. 
Display
Words appearing in the multi-
function display are printed in 
the type shown here.
Warning!
G
Warning notices draw your attention to haz-
ards that may endanger your health or life, 
or the health or life of others.!Highlights hazards that may result in 
damage to your vehicle.iHelpful hints or further information you 
may find useful. 
     
        
        Page 103 of 400

103 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and parking 
lamps can be switched on and off with the 
exterior lamp switch. For exterior lamp 
switch, see (
page 102).
Automatic headlamp mode
The parking lamps, low beam headlamps 
and license plate lamps switch on and off 
automatically depending on the brightness 
of the ambient light.
Turn the exterior lamp switch toU.
iIf you remove the SmartKey and open 
the driver’s door while the parking 
lamps or low beam headlamps are 
switched on, then
a warning sounds
$appears in the multifunction 
display 
the message 
TURN OFF LIGHTS!
 
appears in the multifunction display
iWith the daytime running lamp mode 
activated and the engine running, the 
low beam headlamps cannot be 
switched off manually.
Warning!
G
If the exterior lamp switch is set toU,
the headlamps may switch off unexpect-
edly when the system senses bright 
ambient light, for example light from 
oncoming traffic.
the headlamps will not be automatically 
switched on under foggy conditions. 
To minimize risk to you and to others, 
activate headlamps by turning exterior lamp 
switch toB when driving or when traffic 
and / or ambient lighting conditions require 
you to do so.
In low ambient lighting conditions, only 
switch from positionU toB with the 
vehicle at a standstill. Switching fromU 
toB will briefly switch off the head-
lamps. Doing so while driving in low ambient 
lighting conditions may result in an acci-
dent.
The automatic headlamp feature is only an 
aid to the driver. The driver is responsible for 
the operation of the vehicle's lights at all 
times. 
     
        
        Page 311 of 400

311 Practical hints
Replacing bulbs
Rear lamps Notes on bulb replacement
 12 volt bulbs of the same type and 
with the specified watt rating. 
Switch lights off before changing a bulb 
to prevent short circuits. 
Always use a clean lint-free cloth when 
handling bulbs. 
Your hands should be dry and free of oil 
and grease.
If the newly installed bulb does not 
come on, visit an authorized 
Mercedes-Benz Center.
Have the LEDs and bulbs for the 
following lamps replaced by an 
authorized Mercedes-Benz Center:
Additional turn signals in the 
exterior rear view mirrors
High mounted brake lamp
Xenon lamps
Front fog lamps
Lamp
Type
7
High mounted brake 
lamp
LED
8
Brake lamp
P21W
9
Turn signal lamp
PY 21 W
a
Backup lamp
P21W
b
Tail, parking, 
standing and side 
marker lamp
P21/5W
c
License plate lamps
C5W
d
Rear fog lamp, 
driver’s side
P21/4W
Warning!
G
Keep bulbs out of reach of children.
Bulbs and bulb sockets can be very hot. 
Allow the lamp to cool down before 
changing a bulb.
Halogen lamps contain pressurized gas. 
A bulb can explode if you
touch or move it when hot
drop the bulb
scratch the bulb
Wear eye and hand protection.
Because of high voltage in Xenon lamps, it is 
dangerous to replace the bulb or repair the 
lamp and its components. We recommend 
that you have such work done by a qualified 
technician. 
     
        
        Page 313 of 400
313 Practical hints
Replacing bulbs
Parking and standing lamp bulb
Switch off the lights.
Open the hood (
page 252).
Press the clamp and remove headlamp 
cover2.
Pull out bulb socket6 with the bulb.
Pull the bulb out of bulb socket.
Insert a new bulb in the socket.
Reinstall bulb socket.
Align headlamp cover2 and click into 
place.Bi-Xenon* headlamps
1Bulb socket for turn signal lamp
2Headlamp cover for high beam flasher, 
parking and standing lamp
3Cover for Bi-Xenon lamp4High beam flasher bulb
5Bayonet socket for high beam flasher 
bulb
6Bulb socket for parking and standing 
lamp bulb
High beam bulb
Switch off the lights.
Open the hood (
page 252).
Press the clamp and remove lamp 
cover2.
Pull electrical connector4 off.
Warning!
G
Do not remove the cover3 for the 
Bi-Xenon headlamp. Because of high voltage 
in Bi-Xenon lamps, it is dangerous to replace 
the bulb or repair the lamp and its compo-
nents. We recommend that you have such 
work done by a qualified technician.
 
     
        
        Page 327 of 400

327 Practical hints
Jump starting
The battery is located in the engine 
compartment on the right hand side. The 
terminals for jump starting are located in 
front of the battery.
Make sure the two vehicles do not 
touch.
Turn off all electrical consumers.
Apply parking brake.
Shift gear selector lever to positionP 
(manual transmission to Neutral).1Positive terminal of charged battery
2Positive under hood terminal in front of 
discharged battery
3Negative terminal of charged battery
4Negative under hood terminal in front 
of discharged battery
Connect positive terminal1 of the 
charged battery with positive under 
hood terminal2 in front of the 
discharged battery with the jumper 
cables. Clamp cable to charged 
battery1 first.
Start engine of the vehicle with the 
charged battery and run at idle speed.
Connect negative terminal3 of the 
charged battery with negative under 
hood terminal4 of the discharged 
battery with the jumper cables. Clamp 
cable to charged battery3 first.
Start the engine of the disabled 
vehicle.
You can now again turn on the electrical 
consumers. Do not turn on the lights under 
any circumstances.
Remove the jumper cables first from 
negative terminals3 and4 and then 
from positive terminals1 and2.
You can now turn on the lights.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.
Warning!
G
Keep flames or sparks away from battery. 
Do not smoke. 
Observe all safety instructions and precau-
tions when handling automotive batteries 
(page 258).
!Vehicles with automatic transmission 
and/or 4MATIC:
Do not tow-start the vehicle.