tension and decreases the air pressure in the
air pockets of the drive-dynamic multicontour
front seats. All of the PRE-SAFE ®
system
settings can be re-adjusted following the
critical driving event.
If the seat belts do not release:XAdjust the seat backrest or seat slightly to
the rear until the seat belt tension is
reduced.
The locking mechanism releases.
! When moving the seats, make sure there
are no items in the footwell or behind the
seats. Otherwise, you could damage the
seats and/or the items.
For information on the seat belt adjustment
function as an integrated comfort feature of
the PRE-SAFE ®
system, see ( Y page 51).
NECK-PRO active front head
restraints
The NECK-PRO active front head restraints
are intended to offer the driver and front
passenger increased protection from
whiplash-type injuries. In the event of a rear-
end collision, the NECK-PRO active front head
restraints are designed to move forward and
up in the direction of travel. They thus provide
the head with increased support earlier on in
the collision sequence. The NECK-PRO active
front head restraints will move forward and
up whether the seats are occupied or not.
GWarning!
Do not attach any objects (e.g. hangers) to the
head restraint posts. Otherwise, the NECK-
PRO active front head restraints may not be
able to function properly or offer the intended
degree of protection they were designed for
in the event of a rear-end collision.
GWarning!
Only use seat or head restraint covers which
have been tested and approved by Mercedes-
Benz for your vehicle model.
Using other seat or head restraint covers may
interfere with or prevent the activation of the
NECK-PRO active front head restraints and/
or the deployment of the front side impact air
bags or pelvis air bags.
Contact an authorized Mercedes-Benz Center
for availability.
When the NECK-PRO active front head
restraints have been triggered in an accident,
the NECK-PRO active front head restraints
must be reset. Otherwise, the NECK-PRO
active front head restraints cannot offer any
additional protection in the event of another
rear-end collision.
For information on resetting the activated
NECK-PRO active front head restraints, see
“Resetting activated head restraints”
( Y page 316).
You cannot remove the NECK-PRO active
front head restraints.GWarning!
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as close
to the head as possible and the center of the
head restraint supports the back of the head
at eye level. This will reduce the potential for
injury to the head and neck in the event of an
accident or similar situation.
For information on head restraint adjustment,
see “Head restraint height” ( Y page 89), or
see “Head restraint fore and aft adjustment”
( Y page 89).
Correct driver seat adjustment
GWarning!
In order to avoid possible loss of vehicle
control the following must be done before the
vehicle is put into motion:
R seat adjustment
R head restraint adjustment
54Occupant safetySafety and security
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GWarning!
When the ESC OFF warning lamp å is on,
the ESC is switched off.
When the ESC warning lamp ä and the
ESC OFF warning lamp å are on
continuously, the ESC is not operational due
to a malfunction.
When the ESC is switched off or not
operational, vehicle stability in standard
driving maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESC.
! Avoid spinning of a drive wheel for an
extended period with the ESC switched off.
This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
XSwitching on: With the engine running,
press ESC switch : briefly.
The ESC OFF warning lamp å in the
instrument cluster goes out. The message
ESC-ON appears in the multifunction
display.
PRE-SAFE ®
Brake
The PRE-SAFE ®
Brake is available in vehicles
equipped with DISTRONIC PLUS. The PRE-
SAFE ®
Brake can assist you in minimizing the
risk of a rear-end collision with a vehicle in
front of you. The PRE-SAFE ®
Brake may also
reduce the severity of an accident. At speeds
above approximately 20 mph (30 km/h) it will
issue a warning when your vehicle is
approaching the preceding vehicle very
quickly. An intermittent acoustic warning
sounds and the distance warning lamp ·
in the instrument cluster comes on.
Due to the system characteristics, warnings
could be issued without cause in complex
driving situations.
When the driver and front passenger have
fastened their seat belts, the PRE-SAFE ®
Brake can also
R brake the vehicle within a speed range of
up to 124 mph (200 km/h) automatically
R activate preventative occupant safety
measures (PRE-SAFE ®
) ( Y page 53)GWarning!
An intermittent warning sounds and the
distance warning lamp · in the instrument
cluster is illuminated if the PRE-SAFE ®
Brake
calculates that the distance to the vehicle
ahead and your vehicle’s current speed
indicate that the PRE-SAFE ®
Brake will not be
capable of slowing the vehicle sufficiently to
maintain the preset following distance, which
creates a danger of a collision.
Immediately brake your vehicle to increase
the distance between your vehicle and the
vehicle driving in front of you. The warning
sound is intended as a final caution that you
have not interceded with your own braking
inputs to avoid a potentially dangerous
situation. Do not wait for the operation of the
warning signal to intercede with your own
braking, as that will result in potentially
dangerous emergency braking which will not
always result in an impact being avoided.
Tailgating increases the risk of an accident.
GWarning!
The PRE-SAFE ®
Brake is a convenience
system designed to assist the driver during
vehicle operation. The responsibility for the
vehicle speed and the distance to the vehicle
ahead, including most importantly brake
operation to assure safe stopping distance,
always remains with the driver.
Always pay attention to traffic conditions
even while the PRE-SAFE ®
Brake is switched
on. Otherwise, you may not be able to
recognize dangerous situations until it is too
late and could cause an accident resulting in
personal or fatal injury to you or others.
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XHave the SmartKey deactivated by an
authorized Mercedes-Benz Center.
XReport the loss of the SmartKey or the
mechanical key to your car insurance
company immediately.
XHave the mechanical lock replaced if
necessary.
Any authorized Mercedes-Benz Center will be
glad to supply you with a replacement. For
information on replacing the SmartKey, see
“Replacing the SmartKey” (Y page 80).
Replacing the SmartKey
Only you, or someone authorized by you can
order a replacement key from any Mercedes-
Benz Center. In order to do so, the Mercedes-
Benz Center will require proof of identity and
vehicle ownership with original documents,
including the following:
If you are the current owner of the vehicle:
Rthe vehicle’s current state registration
Ra current identity card, passport, or drivers
license
If you are an authorized person:
Rthe vehicle’s current state registration
Ra current identity card, passport, or drivers
license for the authorized individual
Rsigned and dated authorization from the
owner of the vehicle for which the key is
being requested
iDuplicated or photocopied
documentation will not be accepted.
Activating the key
Once you, or an authorized person, has
provided the appropriate documents, the
Mercedes-Benz Center will need to
synchronize the key to your vehicle before it
can be used. In order to do so, the Mercedes-
Benz Center need access to your vehicle.
Opening the doors from the inside
You can open a door from the inside even
when it is locked unless it is secured with the
child safety lock (Y page 60).
Open door only when conditions are safe to
do so.
Example illustration driver’s door
If the vehicle has previously been locked with
the SmartKey or with KEYLESS-GO, opening
a door from the inside will trigger the anti-
theft alarm system.
To cancel the alarm, see (Y page 73).
XFront doors: Pull on inside door
handle ; on the respective front door.
If the door was locked, locking knob : will
move up.
XRear doors: Pull up locking knob on the
respective rear door to unlock door.
Automatic central locking
The doors and the trunk lock automatically
when the vehicle is set into motion.
You can open a locked front door from the
inside. Open door only when conditions are
safe to do so.
The doors are designed to unlock
automatically after an accident if the force of
the impact exceeds a preset threshold.
The vehicle locks automatically when the
ignition is switched on and the wheels are
turning at a vehicle speed of above 9 mph
(15 km/h). You could therefore lock yourself
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XSwitch on the ignition.XPress button ;, to select the passenger-
side exterior rear view mirror.
XShift the automatic transmission into
reverse gear R.
The passenger-side exterior rear view
mirror moves to the preset parking
position.
XAdjust the passenger-side exterior rear
view mirror with adjustment button = so
that you see the rear wheel and the road
curb.
The exterior rear view mirror parking
position is stored.
You can also store the parking position using
the memory button M ?:
XSwitch on the ignition.XPress button ;, to select the passenger-
side exterior rear view mirror.
XAdjust the passenger-side exterior rear
view mirror with adjustment button = so
that you see the rear wheel and the road
curb.
XPress memory button M ? and within
3 seconds, press one of the arrows of
adjustment button =.
The parking position is stored if the exterior
rear view mirror does not move.
iIf the exterior rear view mirror does move,
repeat the above steps. After the setting is
stored, you can move the exterior rear view
mirror again.
Calling up the parking positionXSwitch on the ignition.XPress button ;, to select the passenger-
side exterior rear view mirror.
XShift the automatic transmission into
reverse gear R.
The passenger-side exterior rear view
mirror moves to the stored parking
position.
The passenger-side exterior rear view mirror
returns to its previously stored driving
position
R10 seconds after you have put the gear
selector lever out of reverse gear R
Rimmediately once your vehicle exceeds a
speed of approximately 6 mph (10 km/h)
Rimmediately when you press button : to
select the driver’s side exterior rear view
mirror
Memory function
Notes
With the memory function you can store up
to three different configurations per front
seat.
Each memory position button on the driver’s
side can store all of the following settings:
RSeat position
RDrive-dynamic multicontour seat: Drive-
dynamic function level
RSteering wheel position
RExterior rear view mirrors’ position
GWarning!
Do not activate the memory function while
driving. Activating the memory function while
driving could cause the driver to lose control
of the vehicle.
Each memory position button on the front
passenger side can store the setting of the
seat position.
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XSwitching on rear fog lamp: Press switch
N (Y page 97).
The rear fog lamp, the front fog lamps, the
green N and the yellow indicator lamp
R in the instrument cluster come on.
XSwitching off rear fog lamp: Press switch
N (Y page 97).
The rear fog lamp, the front fog lamps, the
green N and the yellow indicator lamp
R in the instrument cluster goes out.
Vehicles without front fog lamps
XSwitching on rear fog lamp: Press switch
R (Y page 97).
The rear fog lamp and the yellow indicator
lamp R in the instrument cluster come
on.
XSwitching off rear fog lamp: Press switch
R (Y page 97).
The rear fog lamp and the yellow indicator
lamp R in the instrument cluster goes
out.
Locator lighting
The locator lighting is described in the
“Control system” section, see “Switching
locator lighting on or off” (Y page 142).
Combination switch
Turn signals XPress the combination switch in direction
of arrow ; or ?.
The corresponding turn signal indicator
lamp ! or # in the instrument
cluster flashes.
The combination switch resets automatically
after major steering wheel movements.
To signal minor directional changes:
XPress the combination switch only to the
point of resistance in direction of
arrow ; or ? and release.
The corresponding turn signal lamps will
flash three times.
High beam
XTurn the exterior lamp switch to position
L (Y page 97).
XSwitching on: Push the combination
switch in direction of arrow :.
The high-beam headlamp indicator lamp
K in the instrument cluster comes on.
XSwitching off: Pull the combination switch
in direction of arrow = to its original
position.
iAlso note the information on high-beam
headlamps with activated automatic
headlamp mode (Y page 98) or the daytime
running lamp mode (Y page 98).
Adaptive Highbeam Assist
The Adaptive Highbeam Assist is only
available in vehicles with Bi-Xenon
headlamps.
Depending on the driving and traffic situation,
low-beam leveling and the high-beam
headlamps are controlled via an optical
sensor. The sensor is located on the front of
the overhead control panel. Glare for other
road users is reduced and the illumination of
road ahead is improved. The transitions
between low-beam and high-beam
headlamps take place without a sudden
change of light.
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XSwitching on: Press hazard warning
flasher switch :.
All turn signal lamps are flashing.
iWith the hazard warning flasher activated
and the combination switch set for either
left or right turn, only the respective left or
right turn signals will operate when the
ignition is switched on.
XSwitching off: Press hazard warning
flasher switch : again.
iIf the hazard warning flasher has been
activated automatically, press hazard
warning flasher switch : to switch it off.
Headlamp cleaning system
The headlamps will be cleaned with a high-
pressure water jet automatically when the
engine is running and you have
Rswitched on the headlamps
and
Rthe windshield wipers have wiped the
windshield with washer fluid for the first
time
The headlamps are cleaned every tenth time
the windshield is washed with washer fluid.
The counter resets when you switch off the
ignition.
For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” (Y page 227).
Corner-illuminating lamps
The corner-illuminating lamps improve
illumination of the area in the direction into
which you are turning.
The corner-illuminating lamps will only
operate in low ambient lighting conditions.
If you are driving faster than 25 mph
(40 km/h) the corner-illuminating function is
not available.
Switching on
XMake sure the engine is running.XTurn the exterior lamp switch to position
L or c (Y page 97).
or
XActivate the daytime running lamp mode
(Y page 98).
XSwitch on the left or right turn signal,
depending on whether you are turning left
or right.
The respective corner-illuminating lamp
comes on. If you have switched on the turn
signal for one side but turn the steering
wheel in the other direction, the corner-
illuminating lamp comes on on the side of
the turn signal.
or
XTurn steering wheel in desired direction.
Driving forward: The corner-illuminating
lamp on the side of your steering direction
comes on.
Driving in reverse: The corner-illuminating
lamp opposite to your steering direction
comes on.
The corner-illuminating lamps will come on
automatically depending on the steering
angle, even if you did not switch on either turn
signal. If the corner-illuminating lamps came
on automatically, they will also go out
automatically depending on the steering
angle and vehicle speed.
The corner-illuminating lamps temporarily
come on on both sides of the vehicle if you
turn the steering wheel in one direction and
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Menus and submenusFunction:Trip menu (Y page 129);AMG12 menu (Y page 131)=Navi menu (Y page 134)?Audio menu (Y page 134)ATel menu (Y page 135)BAssistance menu (Y page 137)CService menu (Y page 138)DSettings menu (Y page 139)
Trip menu
In the Trip menu, you can show an additional
display for the speedometer and call up or
reset your vehicle’s statistical data.
The following information is available:
RStandard display (Y page 129)
RFuel consumption statistics since start
(Y page 130)
RFuel consumption statistics since last reset
(Y page 130)
RResetting values (Y page 130)
RRemaining driving range and current fuel
consumption (Y page 131)
RDigital Speedometer (Y page 131)
Standard display
In the standard display, the trip
odometer : and the main odometer ;
appear in the multifunction display.
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If another display appears instead of the
standard display:
XPress button = or ; to select the
Trip menu.
or
XPress button % repeatedly until the
standard display appears.
or
XPress and hold button % until the
standard display appears.
Fuel consumption statistics since start
XPress button = or ; to select the
Trip menu.
XPress button : or 9 to select From
Start.
:Distance driven since start;Time elapsed since start=Average speed since start?Average fuel consumption since start
All statistics stored since the last engine start
will be reset approximately 4 hours after the
SmartKey in the starter switch is turned to
position 0 or removed from the starter switch.
Resetting will not occur if you turn the
SmartKey back to position 1 or 2 within this
time period.
The fuel consumption statistics since start
reset automatically to 0 after 9 999 miles or
999 hours, whichever occurs first.
Fuel consumption statistics since last
reset
XPress button = or ; to select the
Trip menu.
XPress button : or 9 to select From
Reset.
:Distance driven since last reset;Time elapsed since last reset=Average speed since last reset?Average fuel consumption since last reset
The fuel consumption statistics since last
reset reset automatically to 0 after
99 999 miles or 9 999 hours, whichever
occurs first.
Resetting values
You can reset the values for the following
functions:
RTrip odometer
RFuel consumption statistics since start
RFuel consumption statistics since last reset
XPress button = or ; to select the
Trip menu.
XPress button : or 9 to select the
function you wish to reset.
XPress button a.
Example illustration: Reset fuel consumptionstatistics since start
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