Page 84 of 481

83 Safety and Security
Driving safety systems
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal, indicating that the ABS is in
the regulating mode.
Keep firm and steady pressure on the
brake pedal while experiencing the pul-
sation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to
steer the vehicle.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and
functions as a reminder to take extra care
while driving.Emergency brake maneuver
Keep continuous full pressure on the
brake pedal.
For more information, see “Practical Hints”
(
page 362).
BAS
The Brake Assist System (BAS) operates in
emergency situations. If you apply the
brakes very quickly, the BAS automatically
provides full brake boost, thereby poten-
tially reducing braking distance. Apply con-
tinuous full braking pressure until the
emergency braking situation is over. The
ABS will prevent the wheels from locking.
When you release the brake pedal, the
brakes function again as normal. The BAS
is then deactivated.
Warning!
G
The ABS cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase braking or steering efficiency be-
yond that afforded by the condition of the
vehicle brakes and tires or the traction af-
forded. The ABS cannot prevent accidents,
including those resulting from excessive
speed in turns, following another vehicle too
closely, or hydroplaning. Only a safe, atten-
tive, and skillful driver can prevent acci-
dents. The capabilities of an ABS equipped
vehicle must never be exploited in a reck-
less or dangerous manner which could jeop-
ardize the user’s safety or the safety of
others.
Warning!
G
If the BAS is malfunctioning, the brake sys-
tem is still functioning normally, but without
the additional brake boost available that
BAS would normally provide in an emergen-
cy braking maneuver. Therefore, the braking
distance may increase.
Page 92 of 481
91 Controls in detail
Locking and unlocking
Seats
Memory function*
Lighting
Instrument cluster
Control system
Manual transmission
Automatic transmission*
Good visibility
Climate control
Automatic climate control*
Audio system
Power windows
Retractable hardtop
Driving systems
Useful features
Page 94 of 481

93 Controls in detail
Locking and unlocking
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.!The side windows will not open or close
if the battery is discharged or the win-
dows are covered with ice. As a result,
you may no longer be able to properly
close the door. Do not attempt to force
the door shut. Doing so may damage
the door or the side window. Correct
the condition that prevents the
windows from operating before
attempting to close the door.
iWithout the antenna on the left rear
side of the vehicle installed, the
SmartKey signaling range is consider-
ably reduced. Hold the SmartKey in
close proximity towards the antenna
base when locking or unlocking the
vehicle.
Warning!
G
When leaving the vehicle, always remove the
SmartKey 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. It is possible
for children to open a locked door from the
inside, which could result in an accident
and/or serious injury.!To prevent possible malfunction, avoid
exposing the SmartKey to high levels of
electromagnetic radiation.
Page 99 of 481

98 Controls in detailLocking and unlocking
Opening the trunk
A minimum height clearance of 5.78 ft
(1.76 m) is required to open the trunk lid.
The handle is located above the rear
license plate recess.
Pull on the handle.
Lift the trunk lid.
iIf the vehicle has previously been cen-
trally locked with the SmartKey, open-
ing a door from the inside will trigger
the anti-theft alarm system.
To cancel the alarm, do one of the fol-
lowing:
Press buttonŒor‹ on the
SmartKey.
Insert the SmartKey in the starter
switch.
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.!The side windows will not open or close
if the battery is discharged or the win-
dows are covered with ice. As a result,
you may no longer be able to properly
close the door. Do not attempt to force
the door shut. Doing so may damage
the door or the side window. Correct
the condition that prevents the
windows from operating before
attempting to close the door.
!When the trunk lid is lifted slightly, it
swings open upwards automatically.
Always make sure there is sufficient
overhead clearance.
Page 101 of 481

100 Controls in detailLocking and unlocking
Trunk lid emergency release
The emergency release button is located
on the inside of the trunk lid.
With the emergency release button, the
trunk can be opened from inside the trunk.
1Emergency release button
Briefly press emergency release
button1.
The trunk lid unlocks and opens
slightly.
Push up the trunk lid to fully open.Illumination of the emergency release but-
ton:
The button flashes for 30 minutes after
opening the trunk.
The button flashes for 60 minutes after
closing the trunk.
Warning!
G
Only drive with the trunk lid closed as,
among other dangers such as blocked visi-
bility, exhaust fumes may enter the vehicle
interior.iDo not place the SmartKey in the open
trunk. You may lock yourself out.iIf the vehicle was previously centrally
locked, the trunk lid will lock automati-
cally when closed. The turn signal
lamps will flash three times to confirm
locking.
iThe emergency release button unlocks
the trunk while the vehicle is standing
still or in motion.iThe emergency release button does
not unlock the trunk if the vehicle bat-
tery is discharged or disconnected.
Page 111 of 481

110 Controls in detailLightingFor information on how to switch on the
headlamps and use the turn signals, see
“Switching on headlamps” (
page 55)
and “Turn signals” (
page 55).
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch
MOff
Daytime running lamp mode
(
page 112)
UAutomatic headlamp mode
Daytime running lamp mode
(page 112)
CParking lamps (also tail lamps,
license plate lamps, side marker
lamps, instrument panel lamps)
BLow beam headlamps (or high
beam headlamps when the combi-
nation switch is pushed forward)
and parking lamps
ˆStanding lamps, right
(turn left one stop)
‚Standing lamps, left
(turn left two stops)
CIndicator lamp for parking lamps
‡Indicator lamp for front fog lamps
†Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles
drive on the other side of the road than
the country in which the vehicle is reg-
istered, you must have the headlamps
modified for symmetrical low beams.
Relevant information can be obtained
at your authorized Mercedes-Benz
Center.
Page 112 of 481

111 Controls in detail
Lighting
Manual headlamp mode
The low beam headlamps and the parking
lamps can be switched on and off with the
exterior lamp switch.
Automatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:
Low beam headlamps
Tail and parking lamps
License plate lamps
Side marker lamps
Turn the exterior lamp switch to
positionU.
With the SmartKey in starter switch
position1 only the parking lamps will
switch on and off automatically.
When the engine is running, the low
beam headlamps, the tail and parking
lamps, the license plate lamps, and the
side marker lamps will switch on and
off automatically.
iWith the SmartKey removed from the
starter switch and the driver’s door
open, a warning sounds if the parking
lamps or low beam headlamps are
switched on.
The message
Turn off lights
appears
in the multifunction display.
Warning!
G
If the exterior lamp switch is set toU
the headlamps may switch off unexpect-
edly when the system senses bright am-
bient light, for example light from
oncoming traffic.
the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch toB when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from positionUtoB with the
vehicle at a standstill in a safe location.
Switching fromUtoB will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.
The automatic headlamp feature is only an
aid to the driver. The driver is responsible for
the operation of the vehicle's lights at all
times.
Page 113 of 481

112 Controls in detailLightingDaytime running lamp mode
Turn exterior lamp switch to
positionMorU.
When the engine is running, the low
beam headlamps are switched on.
In low ambient light conditions, the fol-
lowing lamps will switch on additional-
ly:
Tail and parking lamps
License plate lamps
Side marker lamps
For nighttime driving you should turn the
exterior lamp switch to positionB to
permit activation of the high beam head-
lamps.Canada only:
The daytime running lamp mode is manda-
tory and therefore in a constant mode.
Vehicles with automatic transmission*:
When the engine is running, and you shift
from a driving position to positionN orP,
the low beam headlamps will switch off
with a three-minute delay.
When the engine is running, and you
turn the exterior lamp switch to
positionC, the parking lamps
switch on additionally.
turn the exterior lamp switch to
positionB, the manual headlamp
mode has priority over the daytime run-
ning lamp mode.
The corresponding exterior lamps
switch on (
page 110).USA only:
By default, the daytime running lamp mode
is deactivated. Activate the daytime run-
ning lamp mode using the control system,
see “Setting daytime running lamp mode”
(
page 143).
When the engine is running, and you turn
the exterior lamp switch to
positionCorB, the manual head-
lamp mode has priority over the daytime
running lamp mode.
The corresponding exterior lamps switch
on (page 110).
iWith the daytime running lamp mode
and the exterior lamp switch in
positionM you cannot switch on the
high beam headlamps.
The high beam flasher is available at all
times.