KEYLESS-GO start/stop button
:
USA only
; Canada only
Position 0 Before you press the KEYLESS-GO start/stop
button, the vehicle’s on-board electronics
have status 0 (as with SmartKey removed).
Position 1
X
Press the KEYLESS-GO start/stop button
once.
This supplies power for some electrical
consumers, e.g. wipers.
i When you now press the KEYLESS-GO
start/stop button
R once more, the ignition (position 2) is
switched on
R twice more the power supply is again
switched off
Ignition (or position 2) X
Press the KEYLESS-GO start/stop button
twice.
This supplies power for all electrical
consumers.
When you switch on the ignition, all lamps
in the instrument cluster come on. The low-
beam headlamp indicator lamp, high-beam
headlamp indicator lamp, and turn signal
indicator lamps will only come on if
activated. If a lamp in the instrument
cluster fails to come on when the ignition is switched on, have it checked and
replaced if necessary. If a lamp in the
instrument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” (
Y page 251).
i When you now press the KEYLESS-GO
start/stop button once, the power supply
is again switched off. Seats
Safety notes
G
Warning!
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
R steering wheel adjustment
R rear view mirror adjustment
R fastening of seat belts G
Warning!
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position as
this can be dangerous. You could slide under
the seat belt in a collision. If you slide under
it, the seat belt would apply force at the
abdomen or neck. That could cause serious
or fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a position that is as upright as
possible and seat belts are properly
positioned on the body. G
Warning!
Your seat must be adjusted so that you can
correctly fasten your seat belt. Seats
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Observe the following points:
R
Adjust the seat backrest until your arms are
slightly angled when holding the steering
wheel.
R Adjust the seat to a comfortable seating
position that still allows you to reach the
accelerator/brake pedal safely. The
position should be as far back as possible
with the driver still able to operate the
controls properly.
R Adjust the head restraint so that it is as
close to the head as possible. The center of
the head restraint must support the back of
the head at eye level.
R Never place hands under the seat or near
any moving parts while a seat is being
adjusted.
Failure to do so could result in an accident
and/or serious personal injury. G
Warning!
The power seats can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury. G
Warning!
According to accident statistics, children are
safer when properly restrained in the rear
seating positions than in the front seating
position. Thus, we strongly recommend that
children be placed in the rear seats whenever
possible. Regardless of seating position,
children 12 years old and under must be
seated and properly secured in an
appropriately sized infant restraint, toddler
restraint, or booster seat recommended for
the size and weight of the child. For additional
information, see “Children in the vehicle”.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/ or the child is not properly secured in the child
restraint.
G
Warning!
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.
Do not drive the vehicle without the seat head
restraints. Head restraints are intended to
help reduce injuries during an accident. Seat adjustment
! 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.
Power seats i
The memory function (Y page 85) lets
you store the settings for the seat position
together with the settings for the steering
wheel and the exterior rear view mirrors. 78
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X
Seat fore and aft adjustment: Press the
switch forward or backward in direction of
arrow ?.
i When moving the seat fore or aft, the head
restraints may readjust automatically.
X Seat backrest tilt: Press the switch
forward or backward in direction of arrow
A.
X Seat height: Press the switch up or down
in direction of arrow =.
X Seat cushion tilt: Press the switch up or
down in direction of arrow ; until your
upper legs are lightly supported.
X Head restraint height: Press the switch
up or down in direction of arrow :.
Head restraint fore and aft adjustment X
While seated, reach behind you with both
hands and find upper edge of the head
restraint.
X Push or pull on the upper edge of the head
restraint cushion to the desired position.
Comfort head restraint G
Warning!
When folding back the side cushions, never
reach between the side cushion and the
mounting post. You could otherwise be
trapped. You can adjust the side cushions of the head
restraints individually.
X
Adjusting side cushions: Pull or push side
cushions : into desired position.
X Adjusting forward or backward: Pull or
push head restraint in direction of
arrow ;. Lumbar support
You can adjust the contour of the front seat’s
lumbar support to help enhance support to
your spine. X
Move adjustment lever : in direction of
the arrows until you have reached a
comfortable seating position. Seats
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X
Switch on the ignition.
X Seat cushion depth: Adjust the seat
cushion depth to the length of your upper
leg using switch ?.
X Seat backrest contour: Adjust the
contour of the seat backrest to the desired
position using W or X.
X Move the seat backrest support cushion to
the bottom with button = or to the center
with button ;.
X Seat backrest side bolsters: Adjust the
side bolsters so that they provide good
lateral support using switch :.
i If, after a period of time, the seat no longer
provides the desired contour, then repeat
the adjustment procedure. Seat ventilation
The blue indicator lamps in seat ventilation
switch
: come on to show which ventilation
level you have selected. i
The seat ventilation for the driver’s seat
can be activated using the summer opening
feature ( Y page 96).
X Switch on the ignition.
X Switching on: Press seat ventilation
switch :.
Three blue indicator lamps in seat
ventilation switch : come on.
X Press seat ventilation switch : repeatedly
until the desired ventilation level is set.
X Switching off: Press seat ventilation
switch : repeatedly until all indicator
lamps go out.
If one or more of the indicator lamps in the
seat ventilation switch : are flashing, there
is insufficient voltage available since too
many electrical consumers are turned on. The
seat ventilation switches off automatically.
The seat ventilation will switch back on again
automatically as soon as sufficient voltage is
available. Seat heating
Front seat heating switches Seats
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Rear seat heating switch (Canada only)
The red indicator lamps in seat heating
switch : come on to show which heating
level you have selected.
The seat heating switches from level
3 (high)
to level 2 after approximately 5 minutes.
The seat heating switches from level 2 to level
1 (low) after approximately 10 minutes.
After approximately 20 minutes in level 1, the
seat heating switches off automatically.
X Switch on the ignition.
X Switching on: Press seat heating
switch :.
Three red indicator lamps in seat heating
switch : come on.
X Press seat heating switch : repeatedly
until the desired seat heating level is set.
X Switching off: Press seat heating
switch : repeatedly until all indicator
lamps go out.
If one or more of the indicator lamps in seat
heating switch : are flashing, there is
insufficient voltage available since too many
electrical consumers are turned on. The seat
heating switches off automatically.
The seat heating will switch back on again
automatically as soon as sufficient voltage is
available. Multifunction steering wheel
Safety notes
G
Warning!
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving
could cause the driver to lose control of the
vehicle.
The electrical steering wheel adjustment
feature can be operated at any time.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
Make sure
R you can reach the steering wheel with your
arms slightly bent at the elbows
R you can move your legs freely
R all displays (including malfunction and
indicator lamps) on the instrument cluster
are clearly visible Steering wheel adjustment
X
Adjusting steering wheel in or out: Move
stalk in direction of arrows :.
X Adjusting steering wheel up or down:
Move stalk in direction of arrows ;.
i The memory function (Y page 85) lets
you store the settings for the steering
wheel together with the settings for the 82
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seat position and the exterior rear view
mirrors.
Easy-entry/exit feature
This feature allows the driver an easier entry
into and exit from the vehicle. When entering
and exiting the vehicle, the steering wheel is
in its uppermost position.
The easy-entry/exit feature can be activated
or deactivated in the Convenience submenu
of the control system (Y page 124). G
Warning!
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement, move
steering wheel adjustment stalk or press one
of the memory position buttons.
Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Children could open the driver’s door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you close the driver’s door with
the ignition switched on. The steering wheel
will also return to its last set position when
you insert the SmartKey into the starter
switch or press the KEYLESS-GO start/stop
button once with the driver’s door closed.
i The last set steering wheel position is
stored when the ignition is switched off or
the position is stored in memory
(Y page 86).
With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you
remove the SmartKey from the starter switch.
The steering wheel also tilts upwards when
you open the driver’s door with the SmartKey in starter switch position
0 or 1 or the
KEYLESS-GO start/stop button in position 1.
i When the current position for the steering
wheel is in the uppermost tilt position, the
steering wheel will no longer be able to
move upward when the easy-entry/exit
feature is activated.
The adjustment procedure is briefly
interrupted when the engine is started. G
Warning!
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
Crash-responsive exit aid When you open the driver’s door after an
accident has occurred, the steering column
moves up. The position of the SmartKey in the
starter switch is insignificant. This function
facilitates exiting as well as rescue of vehicle
occupants.
The crash-responsive exit aid can only be
triggered when the easy-entry/exit feature is
activated via the control system.
Heated steering wheel
The steering wheel heating warms up the
leather area of the steering wheel. Multifunction steering wheel
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ignition is switched on and incoming light
from headlamps falls on the sensor in the
interior rear view mirror.
The rear view mirrors will not react if the
automatic transmission is set to reverse gear
R or the interior lighting is switched on.
G
Warning!
The auto dimming function does not react if
incoming light is not aimed directly at sensors
in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, if the rear window
sunshade is in raised position.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic
conditions and could cause an accident. Exterior rear view mirror parking
position
To assist during parking maneuvers, you can
set the passenger-side exterior rear view
mirror so that you can see the rear wheel and
the road curb.
Setting and storing the parking position X
Switch on the ignition.
X Press button :, to select the passenger-
side exterior rear view mirror. X
Shift the automatic transmission into
reverse gear R.
The passenger-side exterior rear view
mirror moves to the preset parking
position.
X Adjust the passenger-side exterior rear
view mirror with adjustment button ; so
that you see the rear wheel and the road
curb.
X Press 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.
Calling up the parking position X
Switch on the ignition.
X Press button :, to select the passenger-
side exterior rear view mirror.
X Shift 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
R 10 seconds after you have put the gear
selector lever out of reverse gear R
R immediately once your vehicle exceeds a
speed of approximately 6 mph (10 km/h)
R immediately 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. Memory function
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X
Pull fuel filler flap release : in direction of
arrow.
The fuel filler flap is unlocked.
X Open the fuel filler flap ( Y page 176).
X Reinstall side trim panel.
X Close the trunk. Resetting activated NECK-PRO active
front head restraints
If the NECK-PRO active front head restraints
have been triggered in a rear-end collision,
they must be reset.
You can tell that the NECK-PRO active front
head restraints have been triggered when
they have been moved forward and cannot be
adjusted. G
Warning!
For safety reasons, have the NECK-PRO active
front head restraints checked at an
authorized Mercedes-Benz Center after a
rear-end collision. G
Warning!
When pushing back the head restraint
cushion, make sure your fingers do not
become caught between the head restraint
cushion and the cover. Failing to do so may
lead to injury.
! Be careful not to damage upholstery.
i For your convenience, we recommend
that you have this work carried out at an
authorized Mercedes-Benz Center. X
Take reset tool : out of the Mercedes-
Benz literature pouch.
X Guide reset tool : into rectangular
opening = between head restraint
cushion ; and head restraint cover.
X Press reset tool : downward in direction
of arrow until you hear the head restraint
release mechanism audibly engage.
X Pull out reset tool :.
X Firmly press the head restraint
cushion ; backward towards the head
restraint cover in direction of arrow until it
engages.
X Repeat this procedure for the second front
seat.
X After resetting the NECK-PRO active front
head restraints store reset tool : in the
Mercedes-Benz literature pouch.
For information on NECK-PRO active front
head restraints, see “NECK-PRO active front
head restraints” ( Y page 50).
For information on head restraint adjustment,
see “Seats” ( Y page 77). Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an authorized
Mercedes-Benz Center. 264
Replacing SmartKey batteriesPractical hints
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