Page 5 of 498

ContentsSafety and Security........................... 63
Occupant safety................................... 64
Air bags .......................................... 65
Seat belts ....................................... 70
Active head restraints .................... 74
Children in the vehicle .................... 75
Blocking of rear door window
operation ........................................ 82
Panic alarm .......................................... 83
Activating ....................................... 83
Deactivating ................................... 83
Driving safety systems ......................... 84
ABS ................................................ 84
BAS ................................................ 86
ESP
®.............................................. 86
Electro-hydraulic brake system ...... 89
Anti-theft systems................................ 93
Immobilizer..................................... 93
Anti-theft alarm system .................. 93
Tow-away alarm ............................. 95
Controls in detail............................... 97
Locking and unlocking ......................... 98
SmartKey ....................................... 98
SmartKey with KEYLESS-GO* ...... 103
Opening the doors from the inside 111
Opening the trunk ........................ 112
Closing the trunk.......................... 114
Trunk emergency release ............. 120
Valet locking ................................ 121
Automatic central locking ............ 122
Locking and unlocking from
the inside ..................................... 122
Seats ................................................. 124
Front seat active head restraint ... 124
Rear seat head restraints ............. 124
Lumbar support............................ 125
Multicontour seat* ....................... 126
Drive - Dynamic seat* with
multicontour features................... 127
Seat heating* ............................... 128
Seat ventilation* .......................... 130Memory function ............................... 131
Storing positions into memory ..... 132
Recalling positions from memory. 132
Storing exterior rear view mirror
parking position ........................... 133
Lighting ............................................. 134
Exterior lamp switch .................... 134
Combination switch ..................... 138
Corner-illuminating front fog lamps*
(CLS with Bi-Xenon* headlamps) . 139
Hazard warning flasher ................ 140
Interior lighting in the front .......... 141
Interior lighting in the rear ........... 142
Door entry lamps ......................... 143
Trunk lamp ................................... 143
Instrument cluster ............................. 144
Instrument cluster illumination .... 144
Coolant temperature indicator ..... 145
Trip odometer .............................. 146
Tachometer.................................. 146
Outside temperature indicator ..... 146
Page 28 of 498
27 At a glance
Center console
Center console
Upper part
Item
Page
1
4-zone automatic climate
control
196
2
COMAND system, see sepa-
rate operating instructions
3
Seat heating*, front passen-
ger side
128
Seat ventilation*, front pas-
senger side
130
4
Electronic Stability Program
(ESP
®) control switch
88
5
Central locking switch
123
Item
Page
6
Opening/closing button for
storage tray or CD chang-
er*, see separate operating
instructions
252
7
Rear seat head restraints
switch, folding down
124
8
Rear window sunshade
switch*
88
9
Seat heating*, driver’s side
128
Seat ventilation*, driver’s
side
130
a
Hazard warning flasher
switch
140
b
Front passenger front
air bag off indicator lamp
78
Page 93 of 498

92 Safety and SecurityDriving safety systemsNote on driving with the
electro-hydraulic brake system
Following extended periods of only
minor loads to your brake system, you
should occasionally apply the brakes
when traveling at high speeds. This
improves 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.
After hard braking, it is advisable to
drive on for some time so that the air
stream will cool down the brakes fast-
er.
Only Mercedes-Benz approved compo-
nents (e.g. brake pads) should be
installed on your vehicle. Brake pads
not approved by Mercedes-Benz may
impair the safety of your vehicle.
Warning!
G
Be very careful not to endanger other road
users when you apply the brakes.
Page 129 of 498

128 Controls in detailSeatsDrive-dynamic features
Activating
Press button1 (
page 127).
The indicator lamp in the button comes
on and the following display appears in
the multi-function display for about
5 seconds.Deactivating
Press button1 (
page 127) again.
The indicator lamp in the button goes
out.
Massage function (PULSE)
The massage function can help prevent
muscle tension during long drives.
Press button3 (
page 127).
The indicator lamp in button3 comes
on. The air cushions in the lumbar 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.
1Front seat heating switch
Switch on the ignition (
page 36).
iYou can adjust the characteristics of
the Drive - Dynamic seat using the con-
trol system (
page 170).
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
automatically after approximately
5 minutes.
Page 130 of 498
129 Controls in detailSeats
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
indicator lamps go out.
Level3
Three indicator lamps on
(highest level)The seat heating automatically
switches to level 2 after approxi-
mately 5 minutes.
2
Two indicator lamps onThe seat heating automatically
switches to level 1 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
iIf one or more of the lamps on the seat
heating switch are flashing, there is
insufficient 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.
Page 206 of 498

205 Controls in detail
4-zone automatic climate control
Adjusting air volume
Use buttonsU (
page 198) or
(
page 199) for automatic mode or air
volume buttons orQ
(page 198) or (
page 199) 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 198) or
(
page 199) 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 198) or (
page 199).
The indicator lamp on the button
comes on. Display4 (
page 198) or
(
page 199) 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 buttonP or 0
(page 198) or (
page 199) 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.
Page 214 of 498
213 Controls in detail
4-zone automatic climate control
Front center console storage compart-ment ventilation
The front center console storage compart-
ment under the armrest has its own air
vent. The air temperature is about the
same as that of the dashboard air vents.
The lever is located in the front center
vent.
1Lever
To open air vent slide the lever1 up.
To close air vent slide the lever1
down.iThe compartment can get very warm
due to its confined space. When storing
heat sensitive objects (e.g. groceries)
in the compartment, close the air vent
while heating the passenger compart-
ment.
Page 259 of 498
258 Controls in detailUseful featuresReinstalling ashtray insert
Install insert by pushing it back into
frame until it engages again.
Rear door ashtray
1Sliding button
2Insert slides out
3AshtrayOpening rear seat ashtray
Briefly press the top of the ashtray1.
The ashtray opens.
Removing ashtray insert
Push sliding button1 and remove
insert2 upwards from ashtray frame.
Reinstalling ashtray insert
Install insert by pushing it back into
ashtray frame until it engages again.
Cigarette lighterWarning!
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.