Page 10 of 474

9
Product information
Introduction
Product information
Please observe the following in your own 
best interest:
We recommend using Genuine 
Mercedes-Benz parts as well as conversion 
parts and accessories explicitly approved 
by us for your vehicle model.
We have tested these parts to determine 
their reliability, safety and special 
suitability for Mercedes-Benz vehicles.We are unable to make an assessment for 
other products and therefore cannot be 
held responsible for them, even if in indi-
vidual cases an official approval or authori-
zation by governmental or other agencies 
should exist. Use of such parts and acces-
sories could adversely affect the safety, 
performance or reliability of your vehicle. 
Please do not use them.Genuine Mercedes-Benz parts as well as 
conversion parts and accessories 
approved by us are available at your 
authorized Mercedes-Benz Center where 
you will receive comprehensive informa-
tion, also on permissible technical modifi-
cations, and where proper installation will 
be performed. 
     
        
        Page 74 of 474

73 Safety and Security
Occupant safety
Active head restraint
The active head restraint are intended to 
offer the driver and front passenger in-
creased protection from head and neck in-
jury. In the event of a rear-end collision, 
the active head restraints on the driver’s 
and front passenger’s seats are designed 
to move forward in the direction of travel, 
providing the head with increased support 
earlier on in the collision sequence. The ac-
tive head restraints move forward whether 
the seat is occupied.You cannot remove the active head re-
straints on the driver’s and passenger’s 
seats.
For removal of the active head restraints 
we recommend that you contact an autho-
rized Mercedes-Benz Center.
For information on head restraint adjust-
ment, see “Seats” (
page 35).
For information on resetting the activated 
active head restraints, see “Resetting acti-
vated head restraints” (page 394).
Warning!
G
Only use seat- or head restraint covers 
which have been tested and approved by 
Mercedes-Benz for your vehicle model. 
Using other seat- or head restraint covers 
may interference with or prevent the activa-
tion of the active head restraints. Contact 
your authorized Mercedes-Benz Center for 
availability.
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraints so that the center of 
the head restraint supports the back of the 
head at eye level. This will reduce the poten-
tial for injury to the head and neck in the 
event of an accident or similar situation.
Do not drive the vehicle without the seat 
head restraints. Head restraints are intend-
ed to help reduce injuries during an 
accident. 
     
        
        Page 131 of 474

130 Controls in detailControl systemThe control system is activated as soon as 
the SmartKey in the starter switch is 
turned to position1. The control system 
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control 
system to find out when your vehicle is 
next due for service, to set the language 
for messages in the instrument cluster 
display, and much more.
The control system relays information to 
the multifunction display.
Multifunction display
1Trip odometer
2Main odometer
3Current program mode (automatic 
transmission*)
4Current gear selector lever 
position/gear range (automatic trans-
mission*)
5Digital clock
6Status indicator (outside tempera-
ture/digital speedometer)
iThe displays for the audio systems 
(radio, CD player) will appear in English, 
regardless of the language selected.
Warning!
G
A driver’s attention to the road and traffic 
conditions must always be his/her primary 
focus when driving.
For your safety and the safety of others, 
selecting features through the multifunction 
steering wheel should only be done by the 
driver when traffic and road conditions 
permit it to be done safely.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet 
(approximately 14 m) every second. 
     
        
        Page 142 of 474
141 Controls in detail
Control system
Submenus in the Settings menu
Press buttonj.
The collection of the submenus 
appears in the multifunction display.
Press buttonç.
The selection marker moves to the next 
submenu.The submenus are arranged by hierarchy. 
Scroll down with buttonç, scroll up 
with buttonæ.
With the selection marker on the desired 
submenu, use the buttonj to access 
the individual functions within that sub-
menu. Once within the submenu, you can 
use the button j to move to the next 
function or the button k to move to the 
previous function within that submenu.
The settings themselves are made with 
buttonæ orç.
iThe settings you have changed will not 
be reset unless you confirm the action 
by pressing the reset button a second 
time. After approximately 5 seconds, 
the 
Settings
 menu reappears in the 
multifunction display.
For safety reasons, the following 
function are not reset while driving:
the 
Hdlamp mode
 function in the 
Lighting
 submenu 
     
        
        Page 151 of 474

150 Controls in detailControl system
The selection marker is on the current 
setting.
Press buttonæ orç to select 
manual operation (
Manual
) or daytime 
running lamp mode (
Constant
) 
activated.
With daytime running lamp mode activated 
and the exterior lamp switch in 
positionM orU, the low beam 
headlamps are switched on when the 
engine is running.In low ambient light conditions the 
following lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
For more information on the daytime 
running lamp mode, see “Lighting” 
(
page 118).Set locator lighting
With the locator lighting feature activated 
and the exterior lamp switch in 
positionU, the following lamps will 
switch on during darkness when the vehi-
cle is unlocked with the SmartKey:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
The locator lighting switches off when the 
driver’s door is opened.
If you do not open a door after unlocking 
the vehicle with the SmartKey, the lamps 
will switch off automatically after approxi-
mately 40 seconds.
Move the selection marker with 
buttonæ orç to the 
Lighting
 
submenu.
iFor safety reasons, resetting the set-
tings to factory settings (
page 140) 
while driving will not deactivate the 
daytime running lamp mode.
The following message appears in the 
multifunction display:
Lighting - Cannot be completely 
reset to factory sets. while 
driving.
 
     
        
        Page 160 of 474

159 Controls in detail
Control system
Press buttons.
The system dials the selected phone 
number.
If the connection is successful, the 
name of the party you called and 
the duration of the call will appear 
in the multifunction display.
If no connection is made, the 
control system stores the dialed 
number in the redial memory.Redialing
The control system stores the most 
recently dialed phone numbers. This 
eliminates the need to search through your 
entire phone book.
Press buttonÿ orè repeatedly 
until the message 
TEL
 appears in the 
multifunction display.
Press buttons.
The first number in the redial memory 
appears in the multifunction display.
Press buttonj ork repeatedly 
until the desired name appears in the 
multifunction display.
Press buttons.
The control system dials the selected 
phone number.
iIf you press and hold buttonj 
ork for longer than 1 second, the 
system scrolls rapidly through the list 
of names until you release the button 
again.
Cancel the quick search mode by 
pressing buttont. 
     
        
        Page 168 of 474

167 Controls in detail
Automatic transmission*
Automatic shift program
The program mode selector switch is 
located on the lower part of the center 
console.
1Program mode selector switch
C Comfort For comfort driving
S Sport For standard driving
The current gear selector lever position 
and the selected program mode (
C/S) are 
indicated in the multifunction display 
(
page 163).
Effect
ï
The transmission shifts through 
sixth gear only (applies to 
vehicles with 7-speed automatic 
transmission only).
î
The transmission shifts through 
fifth gear only (applies to 
vehicles with 7-speed automatic 
transmission only).
é
The transmission shifts through 
fourth gear only.
è
The transmission shifts through 
third gear only.
With this selection you can use 
the braking effect of the engine.
Effect
ç
The transmission shifts through 
second gear only.
Allows the use of engine’s 
braking power when driving:
on steep downgrades
in mountainous regions
under extreme operating 
conditions
æ
The transmission operates in 
first gear only.
For maximum use of engine’s 
braking effect on very steep or 
lengthy downgrades. 
     
        
        Page 169 of 474

168 Controls in detailAutomatic transmission*
Press program mode selector 
switch1 repeatedly until the letter of 
the desired program mode appears in 
the multifunction display.
SelectCfor comfort driving:
The vehicle starts out in second 
gear (both forward and reverse) for 
gentler starts. This does not apply if 
full throttle is applied or gear 
range1 is selected.
Traction and driving stability are 
improved on icy roads.
Upshifts occur earlier even when 
you give more gas. The engine then 
operates at lower rpms and the 
wheels are less likely to spin.
One-touch gearshifting 
Even with an automatic transmission, you 
can change the gears manually and limit or 
extend the gear range for automatic 
shifting with the gear selector lever in 
positionD.
!Never change the program mode when 
the gear selector lever is out of 
positionP. This could result in a 
change of driving characteristics for 
which you may not be prepared.iThe last selected program 
mode (CorS) is switched on when the 
engine is restarted.
!Allow engine to warm up under low 
load use. Do not place full load on the 
engine until the operating temperature 
has been reached.
Shift into reverse gearR or parking 
positionP only when the vehicle is 
stopped.
Avoid spinning of a drive wheel for an 
extended period when driving off on 
slippery road surfaces. This may cause 
serious damage to the drivetrain which 
is not covered by the Mercedes-Benz 
Limited Warranty.