ContentsSafety and Security........................... 63
Occupant safety................................... 64
Airbags ........................................... 65
Seat belts ....................................... 71
Roll bar ........................................... 75
Children in the vehicle .................... 76
Panic alarm .......................................... 81
Activating ....................................... 81
Deactivating ................................... 81
Driving safety systems ......................... 82
ABS ................................................ 83
BAS ................................................ 84
ESP
®............................................... 85
Electro-hydraulic brake system ...... 88
Anti-theft systems................................ 91
Immobilizer..................................... 91
Anti-theft alarm system .................. 91
Tow-away alarm ............................. 93
Controls in detail............................... 95
Locking and unlocking ......................... 96
SmartKey ....................................... 96
SmartKey with KEYLESS-GO* ...... 100
Opening the doors from the
inside ........................................... 107
Opening the trunk ........................ 108
Closing the trunk.......................... 109
Valet locking ................................ 110
Trunk lid emergency release ........ 111
Automatic central locking ............ 112
Locking and unlocking from the
inside ........................................... 113
Seats ................................................. 115
Moving the seats forward and
backward ..................................... 115
Lumbar support............................ 116
Multicontour backrest* ................ 116
Seat heating ................................. 117
Seat ventilation* .......................... 120
Memory function ............................... 121
Storing positions into memory ..... 122
Recalling positions from memory . 122 Lighting ............................................ 123
Exterior lamp switch .................... 123
Corner-illuminating front fog
lamps* (vehicles with Bi-Xenon*
headlamps and without Sport
Package*) .................................... 127
Combination switch ..................... 129
Hazard warning flasher ................ 129
Interior lighting ............................ 130
Courtesy lighting .......................... 131
Instrument cluster ............................. 132
Instrument cluster illumination .... 132
Coolant temperature gauge ......... 133
Trip odometer .............................. 133
Tachometer.................................. 133
Outside temperature indicator ..... 134
Control system .................................. 135
Multifunction display.................... 135
Multifunction steering wheel........ 136
Menus .......................................... 138
Standard display menu ................ 140
AUDIO menu ................................ 141
NAV menu .................................... 143
Distronic* menu .......................... 143
Vehicle status message memory
menu............................................ 144
30 At a glanceCenter consoleLower part
Item
Page
1
Parking assist (Parktronic
system)* deactivation
switch
223
2
Active Body Control (ABC)
button
219
3
Tow-away alarm switch
93
4
Retractable hardtop
open/close control with
buttons for roll bar
195,
75
5
Exterior rear view mirror ad-
justment
44
Item
Page
6
Vehicle level control switch
220
7
ESP
® switch
86
8
Thumbwheel for setting dis-
tance for Distronic*
215
9
Distance warning function*
on/off switch
215
a
Program mode selector
switch for automatic trans-
mission
174
b
Gear selector lever for
automatic transmission
168
88 Safety and SecurityDriving safety systemsElectro-hydraulic brake system
The electro-hydraulic brake system com-
bines a hydraulic brake circuit with elec-
tronically controlled brake servo
assistance. You have increased braking
safety and improved braking comfort.Warning!
G
Never ignore a brake malfunction indicated
in the speedometer display, for example by
the;(USA only) or3(Canada only)
indicator lamp. Refer to the “Practical hints”
section (
page 334). Also read and ob-
serve the messages in the instrument clus-
ter multifunction display (
page 361).
Warning!
G
The electro-hydraulic brake system requires
electrical power to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 334)
comes on and warning messages
(
page 361) appear in the multifunction
display while driving. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is in-
creased!
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
202 Controls in detailRetractable hardtop1Guide tabs
Slide the wind screen into the roll bar
until the guide taps on each side latch
underneath the roll bar. Make sure the
fastening straps do not get caught.
Raise the roll bar slightly (
page 75).2Buckle
Guide the fastening straps around the
top of the roll bar and close buckles 2.
Tighten the fastening straps if neces-
sary.
Lower the roll bar.
Fold the upper section of the wind
screen up towards the head restraints
until it stops.Removing
Fold the upper section of the wind
screen back down.
Raise the roll bar slightly (
page 75).
1Release button
Undo the buckles on the upper section
of the roll bar by pressing release
button1.
203 Controls in detail
Retractable hardtop
Lower the roll bar. Make sure the fas-
tening straps do not get caught.
Pull the wind screen out towards the
front of the vehicle. Be careful not to
damage interior trim with the guide
tabs.
Place the wind screen back into the
bag.Sunshade for panorama roof*
The sunshade protects you from excessive
sunlight coming in through the panorama
roof.
1Stop buttons
2HandleOpening
Squeeze stop buttons1 and guide the
sunshade towards the rear.
Closing
Using handle2, slide the sunshade
towards the front of the vehicle.
Warning!
G
Do not operate the sunshade while driving.
Adjusting the sunshade while driving could
cause the driver to lose control of the vehi-
cle.
258 OperationDriving instructionsPower assistance
Brakes
Warning!
G
The brake system requires electrical energy
for operation.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. In such a case, the
red brake warning lamp (
page 334) and
warning messages (
page 345) in the in-
strument cluster come on while driving. To
brake, the driver must then apply signifi-
cantly greater brake pedal pressure and de-
press the pedal much further to obtain the
expected braking effect. If necessary, apply
full pressure to the brake pedal. Brakes are
only applied to the front wheels. Stopping
distance is increased! If there is a malfunc-
tion in the electro-hydraulic brake system,
we recommend that the vehicle be trans-
ported with all wheels off the ground using
flatbed or appropriate wheel lift/dolly equip-
ment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle.
Warning!
G
After driving in heavy rain for some time
without applying the brakes or through wa-
ter deep enough to wet brake components,
the first braking action may be somewhat
reduced and increased pedal pressure may
be necessary to obtain expected braking ef-
fect. Maintain a safe distance from vehicles
in front.
Resting your foot on the brake pedal will
cause excessive and premature wear of the
brake pads.
It can also result in the brakes overheating
thereby significantly reducing their effec-
tiveness. It may not be possible to stop the
vehicle in sufficient time to avoid an acci-
dent.
362 Practical hintsWhat to do if …Left display
Right display
Possible cause/consequence
Possible solution
USA only:;Canada only:3
Reduced
brake effect
Visit
workshop
The electro-hydraulic brake system
is in emergency operation mode.
Considerable brake pedal force is
required and the stopping distance
is increased.
Continue driving with added caution.
Adjust driving to be consistent with reduced
braking responsiveness.
Visit an authorized Mercedes-Benz Center im-
mediately. Adjust driving to be consistent
with reduced braking responsiveness.
Warning!
G
Driving while this message is displayed can
result in an accident. Have your brake sys-
tem checked immediately.
If there is a malfunction in the
electro-hydraulic brake system, we recom-
mend that the vehicle be transported with
all wheels off the ground using flatbed or ap-
propriate wheel lift/dolly equipment.
A tow bar must be used if circumstances do
not permit the use of the recommended
towing methods and the vehicle requires
towing with all four wheels on the ground.
Towing the vehicle with all four wheels on
the ground is only permissible for distances
up to 30 miles (50 km) and at a speed not to
exceed 30 mph (50 km/h). For more infor-
mation, see “Towing the vehicle”
(page 421).
If the electro-hydraulic brake system enters
its emergency operation mode, the driver
must apply significantly greater brake pedal
pressure and depress the pedal much fur-
ther than normal to obtain braking effect.
If necessary, apply full pressure to the brake
pedal. Brakes are only applied to the front
wheels. Stopping distance is increased!
422 Practical hintsTowing the vehicleWarning!
G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:
the engine will not run
there is a malfunction in the
electro-hydraulic brake system
there is a malfunction in the power sup-
ply or in the vehicle’s electrical system
as that will be necessary to adequately con-
trol the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make certain that the SmartKey
is in starter switch position2.
If the SmartKey is left in starter switch
position0 for an extended period of time, it
can no longer be turned in the switch. In this
case, the steering is locked. To unlock, re-
move SmartKey from starter switch and re-
insert.
iTo signal turns while being towed with
the hazard warning flasher in use, turn
SmartKey in starter switch to
position2 and activate the combina-
tion switch for the left or right turn sig-
nal in the usual manner – only the
selected turn signal will operate.
Upon canceling the turn signal, the haz-
ard warning flasher will operate again.
Warning!
G
The brake system requires electrical power
to operate.
A malfunction in the vehicle’s power supply
or electrical system may impair brake sys-
tem operation and switch it into its emer-
gency operation mode. To brake, the driver
must then apply significantly greater brake
pedal pressure and depress the pedal much
further to obtain the expected braking ef-
fect. If necessary, apply full pressure to the
brake pedal. Brakes are only applied to the
front wheels. Stopping distance is in-
creased! Adapt your driving style according-
ly. For more information, see
“Electro-hydraulic brake system”
(page 88).
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the ve-
hicle. Adapt your driving accordingly.