
50 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Automatic central locking
With the automatic central locking system activated, the
doors and trunk are locked at vehicle speeds of
approximately 9 mph (15 km / h) or more. The fuel filler
flap remains unlocked.
The automatic central locking function can be switched
on or off in the individual setting menu “VEHICLE” –
“AUTOMATIC DOOR LOCK”, see page 146.
Notes:
If doors are unlocked with the central locking switch
after activating the automatic central locking, and
neither door is opened, then the doors remain unlocked
even at vehicle speeds of approximately 9 mph
(15 km / h) or more.
If a door is opened from the inside at speeds of
approximately 9 mph (15 km / h) or less with the
automatic central locking activated, the door will again
be automatically locked at speeds of approximately
9 mph (15 km / h) or more.
When a door is opened from the inside, the complete
vehicle is unlocked, if the vehicle is previously unlocked
in the global remote control mode.Important!
When towing the vehicle, or with the vehicle on a
dynamometer test stand, please, note the following:
With the automatic central locking activated and the
electronic key in starter switch position 2 (vehicles with
KEYLESS-GO: operation position, see page 236), the
vehicle doors will lock if the left front wheel as well as
the right rear wheel spin at vehicle speeds of
approximately 9 mph (15 km / h) or more.
Emergency unlocking in case of accident
The doors unlock automatically a short time after an
accident in which an airbag or emergency tensioning
retractor deploys (this is intended to aid rescue and
exit).

95 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Your vehicle was originally equipped with airbags
which are designed to activate in certain impacts
exceeding a preset threshold to reduce the potential
and severity of injury. It is important to your safety
and that of your passenger that you replace deployed
airbags and repair any malfunctioning airbags to
ensure the vehicle will continue to provide crash
protection for occupants.
Wa r n i n g !
To reduce the risk of injury when the front airbags
inflate, it is very important for the driver and front
passenger to always be in a properly seated
position and to wear their seat belts.For maximum protection in the event of a collision
always be in normal seated position with your back
against the backrest. Fasten your seat belt and
ensure that it is properly positioned on your body.Since the airbag inflates with considerable speed
and force, a proper seating and hands on steering
wheel position will help to keep you at a safe
distance from the airbag. Occupants who are
unbelted, out of position or too close to the airbag
can be seriously injured by an airbag as it inflates
with great force in the blink of an eye:
• Sit properly belted in an upright position with
your back against the backrest.• Adjust the driver’s seat as far as possible
rearward, still permitting proper operation of
vehicle controls. The distance from the center
of the driver’s breastbone to the center of the
airbag cover on the steering wheel must be at
least ten inches (25 cm) or more. You should be
able to accomplish this by a combination of
adjustments to the seat and steering wheel. If
you have any problems, please see your
authorized Mercedes-Benz Center.• Do not lean with your head or chest close to the
steering wheel or dashboard.• Keep hands on the outside of steering wheel
rim. Placing hands and arms inside the rim
can increase the risk and potential severity of
hand / arm injury when driver front airbag
inflates.• Adjust the front passenger seat as far as
possible rearward from the dashboard when
the seat is occupied.

98 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
When you sell your vehicle we strongly urge you to give
notice to the subsequent owner that it is equipped with
an “SRS” by alerting them to the applicable section in
the Operator’s Manual.
• Improper work on the system, including
incorrect installation and removal, can lead to
possible injury through an unintended
activation of the “SRS”.• In addition, through improper work there is a
risk of rendering the “SRS” inoperative or
causing unintended airbag deployment. Work
on the “SRS” must therefore only be performed
by an authorized Mercedes-Benz Center.• For your protection and the protection of
others, when scrapping the airbag unit or
emergency tensioning retractor, our safety
instructions must be followed. These
instructions are available at your authorized
Mercedes-Benz Center.
• Given the considerable deployment speed and
the textile structure of the airbags, there is the
possibility of abrasions or other injuries
resulting from airbag deployment.

105 Rear view mirrors
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Parking position
The passenger-side exterior mirror can be adjusted and
programmed to assist the driver during parking
maneuvers (e.g. to observe the curb or other objects
close to the vehicle).
With the electronic key in starter switch position 2, and
the exterior rear view mirror switch in the passenger-
side position, the passenger-side mirror will be turned
downward when placing the gear selector lever in “R”
reverse.
The passenger-side mirror position can now be adjusted
as desired.
The passenger-side mirror will return to its previous
position:
•immediately at speeds above approximately 6 mph
(10 km / h) – independent of the engaged gear,
•after 10 seconds when shifting gear selector lever
from “R” Reverse,
•by pressing driver’s side mirror button %.To store passenger mirror parking position:
1. The vehicle must be stationary.
Turn electronic key to starter switch position 1 or 2.
2. Select passenger-side mirror& and adjust the
mirror to view the curb.
3. Push the memory button “M” (4).
4. Within 3 seconds push bottom of adjustment
button (3).
The mirror should not move.
Repeat the memory procedure if the mirror moves.
Note:
One stored parking position is available for each of the
two electronic keys or for both KEYLESS-GO-cards
(vehicles with KEYLESS-GO).

113 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Knob for instrument cluster illumination,
seepage114
2Engine malfunction indicator lamp, see page 302
3Brake fluid low, parking brake engaged,
seepage313
4Supplemental restraint system (SRS) malfunction
indicator lamp, see page 305
5Coolant temperature gauge, see page 115
6Outside temperature indicator, see page 115
7Fuel gauge with reserve warning lamp, see page 305
8Left turn signal indicator lamp, see combination
switch, see page 162
9Speedometer, see page 116
10Electronic stability program (ESP) warning lamp,
system is adjusting to road conditions, see page 307
11Distance warning lamp – vehicles with Distronic
(DTR), distance to the vehicle ahead is insufficient,
see page 272 and 307
Vehicles without Distronic: It illuminates with the
electronic key in starter switch position 2. It should
go out when the engine is running.12Multifunction display, see page 118
Malfunction and warning messages in the
multifunction display, see page 309
13Trip odometer, see page 117 and 122
14Main odometer, see page 122
15Right turn signal indicator lamp, see combination
switch, page 162
16Tachometer, see page 117
17Gear range indicator display, see selector lever
positions, page 240
18Digital clock
To set the time, see COMAND operator’s manual
19Antilock brake system (ABS) malfunction indicator
lamp, see page 306
20High beam headlamp indicator,
see exterior lamp switch on page 158, and
combination switch on page 162
21Fasten seat belts, see page 308
22Reset button J, see page 114 and 117

116 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Speedometer (9)
When the cruise control is activated, the segments on
the speedometer scale between the set speed to the top
of the scale are illuminated. Cruise control, see
page 258.
When the Distronic (DTR) is activated, one or two
segments around the speed stored in memory light up
in the speedometer dial. Distronic (DTR), see page 261.Note:
The speed display is set to read out for
•USA in mph
•Canada in km/h.
The unit for the speed display can be set in the
individual setting menu “INST. CLUSTER” –
“SPEEDOMETER” on page 140.

117 Instrument cluster
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trip odometer (13)
To reset to “0” miles / km:
Activate the instrument cluster if it is not already
activated by pressing theJbutton on the instrument
cluster.
Press the è or ÿ button on the multifunction
steering wheel repeatedly until the trip odometer
appears if it is not displayed. See page 122.
Press button Jon the instrument cluster until the trip
odometer is reset.Tachometer (16)
The red marking on the tachometer denotes excessive
engine speed.
Avoid this engine speed, as it may result in serious
engine damage that is not covered by the
Mercedes-Benz Limited Warranty.
To help protect the engine, the fuel supply is interrupted
if the engine is operated within the red marking.

120 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Note:
The displays in the multifunction display can be set to
German, English, French, Italian or Spanish language.
See “SETTINGS” – “INST. CLUSTER” – “TEXT” on
page 140 for instructions on changing the language
setting.
The displays for the audio systems (radio, CD player,
cassette player) will appear in English, regardless of the
language selected.
Wa r n i n g !
A driver’s attention to the road 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 approximately 50 feet (approximately
14 m) every second.