ContentsSafety and Security........................... 65
Occupant safety................................... 66
Air bags .......................................... 67
Seat belts ....................................... 73
Active head restraints .................... 77
Children in the vehicle .................... 78
Blocking of rear door window
operation ........................................ 89
Panic alarm .......................................... 91
Activating ....................................... 91
Deactivating ................................... 91
Driving safety systems ......................... 92
ABS ................................................ 92
BAS ................................................ 94
ESP
®.............................................. 94
Electrohydraulic brake system ....... 97
Four wheel electronic traction
system (4MATIC) with the ESP
®... 100
Anti-theft systems.............................. 101
Immobilizer................................... 101
Anti-theft alarm system ................ 101
Tow-away alarm ........................... 103
Controls in detail............................. 105
Locking and unlocking ....................... 106
SmartKey ..................................... 106
SmartKey with KEYLESS-GO* ...... 111
Opening the doors
from the inside ............................. 119
Opening the trunk ........................ 120
Closing the trunk.......................... 121
Trunk emergency release ............. 127
Valet locking ................................ 128
Automatic central locking ............ 129
Locking and unlocking
from the inside ............................. 129
Seats ................................................ 131
Front seat active head restraints . 131
Rear seat head restraints ............. 131
Lumbar support............................ 133
Drive - Dynamic seat* with
multicontour features................... 134
Seat heating* ............................... 135
Seat ventilation* .......................... 136Memory function ............................... 138
Storing positions into memory ..... 139
Recalling positions from memory . 139
Storing exterior rear view mirror
parking position ........................... 140
Lighting ............................................. 141
Exterior lamp switch .................... 141
Combination switch ..................... 145
Hazard warning flasher ................ 146
Interior lighting in the front .......... 147
Door entry lamps ......................... 148
Interior lighting in the rear ........... 149
Trunk lamp ................................... 149
Instrument cluster ............................. 150
Instrument cluster illumination .... 150
Coolant temperature indicator ..... 151
Trip odometer .............................. 151
Tachometer .................................. 152
Outside temperature indicator ..... 152
27 At a glance
Center console
Center console
Upper part
Item
Page
1
Dual-zone automatic
climate control, USA only
202
4-zone automatic climate
control*
214
2
COMAND system, see sepa-
rate operating instructions
3
Seat heating*, front passen-
ger side
135
Seat ventilation*, front pas-
senger side
136
4
Electronic Stability Program
(ESP
®) control switch
96
5
Central locking switch
130
Item
Page
6
Opening/closing button for
storage tray or CD chang-
er*, see separate operating
instructions
276
7
Rear seat head restraints
switch, folding down
131
8
Rear window sunshade
switch*
200
9
Seat heating*, driver’s side
135
Seat ventilation*, driver’s
side
136
a
Hazard warning flasher
switch
146
b
Front passenger front air
bag off indicator lamp
85
99 Safety and Security
Driving safety systems
The electrohydraulic brake servo assis-
tance switches off automatically
approximately 2 minutes after you
turned the SmartKey in the starter
switch to position0 or removed the
SmartKey
approximately 2 minutes after you
pressed the KEYLESS-GO* start/stop
button to turn off the engine or power
supply and opened the driver’s door
(with driver’s door open, the starter
switch is set to position 0, same as
SmartKey removed from starter
switch)
approximately 20 seconds after you
locked the vehicle from outside.Note on driving with the electrohydrau-
lic brake system
Following extended periods of only mi-
nor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This im-
proves the grip of the brake pads.
After driving on wet or snow-covered
roads, you should apply your brakes
firmly before parking your vehicle. This
produces heat which serves to dry the
brake disks and help prevent corro-
sion.
On long and steep grades, shift to a
lower gear (gear range1, 2, or 3) to
prevent the brakes from overheating
and to reduce brake wear.
Warning!
G
Have brake pad replacement and other work
on the electrohydraulic brake system car-
ried out by qualified technicians only. Con-
tact an authorized Mercedes-Benz Center
for further information. The electrohydraulic
brake system must be deactivated prior to
working on the system. High pressure is in-
termittently built up in the system as part of
its automatic self-test. In addition, the sys-
tem is automatically activated when the ve-
hicle is unlocked by SmartKey, when the
driver or passenger door is opened, when
the starter switch is turned to position
1,
when the brake pedal is depressed or when
the parking brake is released. Failure to de-
activate the system prior to maintenance
will cause brake pistons to extend and brake
fluid to leak, which may result in injuries
(contusions and acid burns). Extended
brake pistons may also cause injury.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.
135 Controls in detailSeats
Drive-dynamic features
Activating
Press button4 (
page 134).
The indicator lamp on the button
comes on and the following display ap-
pears in the multifunction display for
about 5 seconds.
Deactivating
Press button4 (
page 134) again.
The indicator lamp on the button goes
out.Massage function (PULSE)
The massage function can help prevent
muscle tension during long drives.
Press button6 (
page 134).
The indicator lamp on the button
comes on. The air cushions in the lum-
bar area pulsate.
Seat heating*
Both switches for the front seats are locat-
ed in the center console. The red indicator
lamps in the switch come on to show
which heating level you have selected:
iYou can adjust the characteristics of
the Drive - Dynamic seat using the con-
trol system (
page 177).
iWhen the engine is turned off, the last
cushion setting is retained in memory.
The cushion is automatically adjusted
to this setting when the engine is re-
started.iThe massage function turns off auto-
matically after approximately
5 minutes.
Level3
Three indicator lamps on
(highest level)
The seat heating automatically
switches to level2 after approxi-
mately 5 minutes.
2
Two indicator lamps on
The seat heating automatically
switches to level1 after approxi-
mately 10 minutes.
1
One indicator lamp on
(lowest level)
The seat heating automatically
switches off after approximately
20 minutes.
off
No indicator lamp on
136 Controls in detailSeats1Seat heating switch
Switch on the ignition (
page 36).
Switching seat heating on
Press switch1 repeatedly until the
desired heating level is set.
One or more red indicator lamps on the
switch show the selected heating level.Switching seat heating off
Press switch1 repeatedly until all in-
dicator lamps go out.
Seat ventilation*
The switch is located on the center con-
sole. Seat ventilation can be activated
manually with the ignition on, or by the
summer opening feature (
page 234).
The blue indicator lamps on the switch
show the ventilation level selected:
iIf one or more of the lamps on the seat
heating switch are flashing, there is in-
sufficient voltage available since too
many electrical consumers are turned
on. The seat heating switches off auto-
matically.
The seat heating will switch back on
again automatically as soon as suffi-
cient voltage is available.
Level3
Three indicator lamps on
(highest level)
2
Two indicator lamps on
1
One indicator lamp on
(lowest level)
off
No indicator lamp on
209 Controls in detail
Dual-zone automatic climate control (USA only)
Adjusting air volume
Nine blower speeds are available.
Press button to decrease
orQ to increase air volume
(page 204) to the desired level.
The indicator lamp on buttonU
(page 204) goes out. The automatic
operation of air volume switches off.
The selected blower speed is shown in
the air volume displaya
(page 204).
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.Activating
Press button0 (
page 204).
The indicator lamp on the button
comes on.
The air conditioning switches
automatically to the following func-
tions:
cooling on to dehumidify
maximum blowing and heating
power (depends on cooling
temperature)
air flows onto the windshield
and the front side windows
the air recirculation mode is
switched off
Deactivating
Press button0 (
page 204) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.Windshield fogged on the outside
Switch the windshield wipers on
(page 56).
Close the cockpit air vent.
Press buttonU (
page 204).
The indicator lamp on the button
comes on. The air volume and air distri-
bution are adjusted automatically.
If the automatic air distribution is switched
off:
Turn air distribution control4 to a
or Y (
page 204).
iKeep this setting selected only until the
windshield or the side windows are
clear again.
iThe cooling remains switched on.iKeep this setting selected only until the
windshield is clear again.
223 Controls in detail
4-zone automatic climate control*
Adjusting air volume
Use buttonsU (
page 216) or
(
page 217) for automatic mode or air
volume buttons orQ
(page 216) or (
page 217) to adjust air
volume manually.
Nine blower speeds are available.
Press button to decrease or
buttonQ to increase air volume to
the desired level.
The indicator lamps on the
buttonsU go out.
AUTO
disappears
in the display4 (
page 216) or
(
page 217) and the automatic mode
is switched off. The selected blower
speed is shown in the display4.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.
Activating
Press buttonP or 0
(page 216) or (
page 217).
The indicator lamp on the button
comes on. Display4 (
page 216) or
(
page 217) is cleared.The air conditioning switches
automatically to the following functions:
cooling on to dehumidify
maximum blowing and heating
power (depends on cooling
temperature)
air flows onto the windshield and
the front side windows
the air recirculation mode is
switched off
Deactivating
Press buttonPor 0
(page 216) or (
page 217) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.
iKeep this setting selected only until the
windshield or the side windows are
clear again.
iThe cooling remains switched on.
282 Controls in detailUseful featuresCigarette lighterThe cigarette lighter is located in the cen-
ter console compartment in front of the
center armrest (
page 28).
1Cigarette lighter
Switch on the ignition (
page 36).
Push in cigarette lighter1.
The lighter will pop out automatically
when hot.
Warning!
G
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* from the starter switch, take
it with you, and lock the vehicle. Do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
!The lighter socket can be used to ac-
commodate 12V DC electrical acces-
sories (up to a maximum of 85 W)
designed for use with the standard
“cigarette lighter” plug type. Keep in
mind, however, that connecting acces-
sories to the lighter socket (for exam-
ple extensive connecting and
disconnecting, or using plugs that do
not fit properly) can damage the lighter
socket. With the socket damaged, the
lighter may no longer be able to be
placed in the heating (pushed-in) posi-
tion, or the lighter may pop out too ear-
ly with the lighter not hot enough.
To help avoid damaging the cigarette
lighter socket, we recommend con-
necting 12V DC electrical accessories
designed for use with a standard “ciga-
rette lighter” plug type to the 12V pow-
er outlets in your vehicle whenever
possible.