Automatic locking feature
X
To deactivate: press and hold button 0043for
about five seconds until a tone sounds.
X To activate: press and hold button 0044for
about five seconds until a tone sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
You could therefore be locked out if:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is on a roller dynamometer.
You can also switch the automatic locking func-
tion on and off using the on-board computer
(Y page 219). Power closing
Power closing pulls the doors into their locks
automatically even if they are only partly closed.
X To power close a door: push the door into
the lock up to the first detent position.
Power closing will pull the door fully closed. Unlocking/locking the driver's door
using the mechanical key
i If you want to centrally lock the vehicle using
the mechanical key, begin by pressing the
locking button for the interior locking mech-
anism while the driver's door is open. Then
proceed to lock the driver's door using the
mechanical key. X
Insert the mechanical key as far as it will go
into opening 0043in the protective cap.
X Pull and hold the door handle.
X Pull the protective cap on the mechanical key
as straight as possible away from the vehicleuntil it releases.
X Release the door handle. X
To unlock: turn the mechanical key counter-
clockwise as far as it will go to position 0047.
X To lock: turn the mechanical key clockwise as
far as it will go to position 0047.
X Re-install the protective covering.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys- tem will be triggered. Switch off the alarm
(Y page 73).
If you lock the vehicle as described above, the
fuel filler flap is not locked. The anti-theft alarm
system is not armed. Doors
81Opening and closing Z
tion" function has a delayed switch-off fea-
ture.
Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and
0050
0050Solutions The indicator lamp in the
005A or0056 button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function cannot
be switched on. Cooling with air dehumidification has been deactivated due to a mal-
function.
X Visit a qualified specialist workshop. Setting climate control to automatic
General notes In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature of the dispensed air, the airflow and the air dis- tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the 0058button.
Automatic control X
Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X Set the desired temperature.
X To activate: press the0058button.
The indicator lamp in the 0058button lights
up. Automatic air distribution and airflow are
activated.
X To switch to manual mode: press the008F
button.
3-zone automatic climate control: when auto-
matic mode is activated, you can select a cli-
mate mode (Y page 120). Adjusting the climate mode settings
You can select the following climate mode set-
tings in automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIU Mmedium airflow, standard setting
DIFFUSEl ow airflow, slightly warmer and draft-
free setting
X Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X Press the 0058button.
X Press the 00F0button repeatedly until the
desired climate mode appears in the display. Setting the temperature
Dual-zone automatic climate control Different temperatures can be set for the driv-
er's and front-passenger sides.
X Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X To increase or decrease: turn control0043or
0084 counter-clockwise or clockwise
(Y page 115).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †). 120
Operating the climate control systemsClimate control
3-zone automatic climate control
You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
X Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X To increase or decrease temperature in
the front compartment: turn control0043or
0084 counter-clockwise or clockwise
(Y page 117).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
X To increase or reduce the temperature in
the rear compartment using the front con-
trol panel: press the00D6button.
The indicator lamp in the 00D6button goes
out.
The temperature setting for the driver's side
is adopted for the rear compartment and the
front-passenger side.
X Turn thumbwheel 0043to the left or right
(Y page 117).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
X To increase or decrease the rear compart-
ment temperature using the rear control
panel: turn control 0075counter-clockwise or
clockwise on the rear control panel
(Y page 117).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †). Setting the air distribution
Air distribution settings Front control panel
009C
Directs the airflow through the center
vents
009B Directs air through the footwell air vents
009F Directs the airflow through the center
and footwell vents
0061 Directs air through the defroster vents
0087 Directs the airflow through the defroster
and center vents (Canada only) 0086
Directs air through the defroster and
footwell vents
008F Directs the airflow through the defroster,
center and footwell air vents (Canada
only)
Rear control panel
0099 Directs the airflow through the rear cen-
ter and B-pillar air vents
009B Directs air through the footwell air vents
i Using the rear control panel, you can also
activate both air distribution positions simul-
taneously. In order to do this, press both air
distribution buttons. The air is then routed
through all rear air vents.
i Regardless of the air distribution setting,
airflow is always directed through the side air vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
Setting X
Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X Press the 008Fbutton repeatedly until the
desired symbol appears in the display. Setting the airflow
X Turn the SmartKey to position 0048in the igni-
tion lock (Y page 127).
X To increase: press the0097button.
X To reduce: press the0095button.
i You can use 3-zone automatic climate con-
trol to set the airflow in the rear compartment
separately. Switching the ZONE function on/off
X To activate: press the00D6button.
The indicator lamp above the 00D6button
lights up.
Dual-zone automatic climate control: the tem-
perature setting for the driver's side is not
adopted for the front-passenger side.
3-zone automatic climate control: the tem-
perature setting for the driver's side is not Operating the climate control systems
121Climate control
Important safety notes
G
WARNING
If you operate information systems and com-
munication equipment integrated in the vehi- cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the country in which you are currently driving whenoperating the on-board computer. G
WARNING
If the instrument cluster has failed or mal-
functioned, you may not recognize function
restrictions in systems relevant to safety. The operating safety of your vehicle may be
impaired. There is a risk of an accident.
Drive on carefully. Have the vehicle checked
at a qualified specialist workshop immedi-
ately.
If the operating safety of your vehicle is
impaired, pull over as soon as it is safe to do so.
Contact a qualified specialist workshop.
The on-board computer only shows messages or warnings from certain systems in the multifunc-tion display. You should therefore make sure
your vehicle is operating safely at all times.
For an overview, see the instrument panel illus-
tration (Y page 36). Displays and operation
Instrument cluster lighting
The lighting in the instrument cluster, in the dis-
plays and the controls in the vehicle interior can be adjusted using the brightness control knob.
The brightness control knob is located on the
bottom left of the instrument cluster
(Y page 36). X
Turn the brightness control knob clockwise or
counter-clockwise.
If you turn the light switch to 0058,0060or
0058, the brightness is dependent upon the
brightness of the ambient light.
i The light sensor in the instrument cluster
automatically controls the brightness of the
multifunction display.
In daylight, the displays in the instrument
cluster are not illuminated. Speedometer with segments
The segments in the speedometer indicate
which speed range is available.
R Cruise control activated (Y page 156):
The segments light up from the stored speed to the maximum speed.
R Active Distance Assist DISTRONIC activated
(Y page 157):
One or two segments in the set speed range
light up.
R Active Distance Assist DISTRONIC detects a
vehicle in front moving more slowly than the
stored speed:
The segments between the speed of the vehi- cle in front and the stored speed light up. Tachometer
! Do not drive in the overrevving range, as this
could damage the engine.
The red band in the tachometer indicates the
engine's overrevving range.
The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Bear in mind that the outside temperature dis-
play indicates the temperature measured and
does not record the road temperature.
The outside temperature display is in the multi-
function display (Y page 210).208
Displays and operationOn-board computer and displays
Vehicle submenu
Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic
Automatic Door
DoorLock
Lockfunc-
tion, the vehicle is centrally locked above a
speed of approximately 9 mph (15 km/h).
X Press the 0059or0065 button on the steering
wheel to select the Sett.
Sett.menu.
X Press the 0064or0063 button to select the
Vehicle
Vehicle submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Automatic Door Lock
Automatic Door Lock function.
When the Automatic Door Lock
Automatic Door Lock function is
activated, the vehicle doors are displayed in
orange in the multifunction display.
X Press the 0076button to save the setting.
For further information on the automatic locking
feature, see (Y page 81).
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic
AcousticLock
Lock function, an
acoustic signal sounds when you lock the vehi-
cle.
X Press the 0059or0065 button on the steering
wheel to select the Settings
Settings menu.
X Press the 0064or0063 button to select the
Vehicle
Vehicle submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Acoustic Lock Acoustic Lock function.
If the Acoustic Lock
Acoustic Lock function is activated,
the 0037 symbol in the multifunction display
lights up orange.
X Press the 0076button to save the setting.
Convenience submenu Activating/deactivating the EASY-
ENTRY/EXIT feature G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has any body parts in the sweep of the steering
wheel.
If somebody becomes trapped:
R press one of the memory function position
buttons, or
R move the switch for steering wheel adjust-
ment in the opposite direction to that in
which the steering wheel is moving.
The adjustment process is stopped.
X Press the 0059or0065 button on the steering
wheel to select the Sett.
Sett. menu.
X Press the 0064or0063 button to select the
Convenience Convenience submenu.
X Press 0076to confirm.
X Using 0064or0063, select the Easy
EasyEntry/
Entry/
Exit
Exit function.
If the Easy
Easy Entry/Exit
Entry/Exit function is activated,
the vehicle steering wheel is displayed in
orange in the multifunction display.
X Press the 0076button to save the setting.
Further information on the EASY-ENTRY/EXIT
feature (Y page 101).
Switching the seat belt adjustment on/off X Press the 0059or0065 button on the steering
wheel to select the Settings Settingsmenu.
X Press the 0064or0063 button to select the
Convenience
Convenience submenu.
X Press 0076to confirm.
X Press the 0064or0063 button to select the
Belt Adjustment
Belt Adjustment function.
If the Belt
Belt Adjustment
Adjustment function is activated,
the vehicle seat belt is shown in orange in the multifunction display.
X Press the 0076button to save the setting.
For further information on belt adjustment, see
(Y page 46).
Switching the fold-in mirrors when lock-
ing feature on/off
This function is only available when the vehicle is
equipped with the electrical fold-in function.
When you activate the Auto. Auto.Mirror
Mirror Folding
Folding
function, the exterior mirrors are folded in when the vehicle is locked. The exterior mirrors fold
out automatically again as soon as you unlock
the vehicle. Menus and submenus
219On-board computer and displays Z
Have the battery charge state checked more
frequently if you use the vehicle mainly for short trips or if you leave it standing idle for a lengthy
period. Consult a qualified specialist workshop
if you wish to leave your vehicle parked for a long
period of time.
Remove the SmartKey if you park the vehicle
and do not require any electrical consumers.
The vehicle will then use very little energy, thus conserving battery power.
If the power supply has been interrupted, e.g. if
you reconnect the battery, you will have to:
R set the clock (see the Digital Operator's Man-
ual)
On vehicles with a multimedia system and
navigation system, the clock is set automati-
cally.
R reset the function for automatically folding
the exterior mirrors in/out by folding the mir-
rors out once( Ypage 103) Charging the 12 V battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten- tion. G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of
an explosion. Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a maximum
charging voltage of 14.8 V.
! Only
charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (Y page 318).
X Open the hood.
X Connect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure (Y page 318).
Keep away from fire and open flames. Do not
lean over a battery. Never charge the battery if it is still installed in the vehicle, unless you use a
battery charger which has been tested and
approved by Mercedes-Benz. A battery charger
unit specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the
charging of the battery in its installed position.
Contact an authorized Mercedes-Benz Center
for further information and availability. Read the battery charger's operating instructions before
charging the battery.
If, at low temperatures, the indicator lamps/
warning lamps in the instrument cluster do not
light up, it is highly likely that the discharged
battery has frozen. In this case you may neither
jump-start the vehicle nor charge the battery.
The service life of a thawed-out battery may be
shorter. The starting characteristics can be
impaired, particularly at low temperatures. Have
the thawed-out battery checked at a qualified
specialist workshop. Replacing the 12 V battery
Observe the notes on the 12 V battery.
Mercedes-Benz recommends that you have the
12 V battery replaced at a qualified specialist
workshop, e.g. at an authorized Mercedes-Benz
Center.
If you want to replace the battery yourself,
observe the following notes:
R Always replace a defective battery with a bat-
tery which meets the specific requirements of
the vehicle. Battery (vehicle)
317Breakdown assistance Z