
Tensioning Device could be triggered in the
event of an accident.
i Vehicles with PRE-SAFE ®
: Emergency
Tensioning Devices that are triggered by an
electric motor can be deployed as often as
desired and do not need to be replaced.
The fronts eat belts and the outer seat belts
in the rear are equipped with Emergency
Tensioning Devices and seat belt force
limiters.
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
The ETDs can only be activated when:
R the ignition is switched on
R the restraint systems are operational; see
"SRS warning lamp 001D" (Ypage 43)
R the belt tongue is engaged in the buckle on
each of the front seat belts
The ETDs on the outside seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The ETDs are triggered depending on the type
and severity of an accident:
R in the event of a head-on or rear-end
collision if the vehicle decelerates or
accelerates rapidly in a longitudinal
direction during the initial stages of the
impact.
R in the event of a side impact if the vehicle
decelerates or accelerates rapidly in a
lateral direction on the side opposite to the
impact.
R Cabriolet: in certain situations if the vehicle
rolls over and the system determines that
it can provide additional protection
If the ETDs are deployed, you will hear a bang,
and a small amount of powder may also be
released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a health hazard and does not indicate that there
is a fire in the vehicle. The dust might cause
some temporary breathing difficulty for
people with asthma or other breathing
trouble. To avoid this, you may wish to get out
of the vehicle as soon as it is safe to do so.
You can also open the window to allow fresh
air to enter the vehicle interior. The
001DSRS
warning lamp lights up.
If the seat belt is also equipped with a seat
belt force limiter and this is triggered, the
force exerted by the seat belt on the vehicle
occupan tis reduced.
The seat belt force limiters for the front seats
are synchronized with the front air bags,
which absorb part of the deceleration force.
This results in the force exerted on the
occupant being distributed over a greater
area.
Automatic comfort-fit feature The front seat belts have an automatic
comfort-fit feature. The automatic comfort-fit
feature reduces the retraction force of the
seat belts. This results in increased seat belt
comfort. Children in the vehicle
Child restraint systems
Important safety notes 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.R egardless of seating position,
children 12 years old and under must be
seated and properly secured in an appropriate
infant restraint, toddler restraint, or booster
seat recommended for the size and weight of
the child. 62
Children in the vehicleSafety

The infant or child restraint must be properly
secured with the vehicle's seat belt, the seat
belt and top tether strap, or lower anchors and
top tether strap, fully in accordance with the
child seat manufacturer's instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriately sized infant
restraint, toddler restraint, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front
passenger seat:
R Your vehicle is equipped with air bag
technology designed to deactivate the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate
child restraint on the front passenger seat.
R For children larger than the typical
12-month-old child, the front passenger
front air bag may or may not be activated.
Always make sure the 0018001Aindicator
lamp is illuminated, indicating that the front
passenger front air bag is deactivated.
R Ac hild in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology installed
in your vehicle. The only means to
completely eliminate this risk is to never
place a child in a rear-facing child restraint
in the front seat. We therefore strongly
recommend that you always place a child
in a rear-facing child restraint in a backseat.
R If you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to do
so, make sure the 0018001Aindicator
lamp is illuminated, indicating that the front passenger front air bag is deactivated.
Should the 0018001Aindicator lamp not
illuminate or go out while the restraint is
installed, please chec kinstallation.
Periodically check the 0018001Aindicator
lamp while driving to make sure the 0018
001A indicator lamp is illuminated. If the
0018001Aindicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
Ac hild in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
R If you have to place a child in a forward-
facing child restraint on the front passenger
seat, move the seat as far back as possible,
use the proper child restraint
recommended for the age, size and weight
of the child, and secure child restraint with
the vehicle's seat belt according to the
child seat manufacturer's instructions. G
WARNING
If the child restraint system is installed
incorrectly on a suitable seat, it cannot
protect as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Make sure that you observe the child restraint
system manufacturer's installation
instructions and the notes on use. Please
ensure, that the base of the child restraint
system is always resting completely on the
seat cushion. Never place objects, e.g.
cushions, under or behind the child restraint
system. Only use child restraint systems with
the original cover designed for them. Only
replace damaged covers with genuine covers. G
WARNING
If the child restraint system is installed
incorrectly or is not secured, it can come Children in the vehicle
63Safety
Z

loose in the even
tofanaccident, heavy
braking or a sudde nchange in direction. The
child restraint system could be thrown about,
striking vehicle occupants. There is an
increased risk of injury, possibly even fatal.
Always install child restraint systems
properly, even if they are not being used.
Make sure that you observe the child restraint
system manufacturer's installation
instructions. G
WARNING
Child restraint systems or their securing
systems which have been damaged or
subjected to a load in an accident can no
longer protect as intended. The child cannot
then be restrained in the event of an accident,
heavy braking or sudden changes of direction.
There is an increased risk of injury, possibly
even fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the
securing systems on the child restraint
system checked at a qualified specialist
workshop, before you install a child restraint
system again. G
WARNING
Infants and small children should never share
a seat belt with another occupant. In the event
of an accident, they could be crushed
between the occupant and seat belt.
Ac hild'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.
Children that are too large for a child restraint
must travel in seats using normal seat belts.
Position the shoulder belt across the chest
and shoulder, not the face or neck.Ab ooster
seat may be necessary to achieve proper seat
belt positioning for children over 41 lbs
(18 kg) until they reach a height where alap/ shoulder belt fits properly without a booster
seat.
When the child restraint is no
tinuse, remove
it from the vehicle or secure it with the seat
belt to prevent the child restraint from
becoming a projectile in the event of an
accident. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children. G
WARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot.
Children may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. 64
Children in the vehicleSafety

Protect it with a blanket, for example. If the
child restraint system has been exposed to
direct sunlight, let it cool down before
securing the child in it. Never leave children
unattended in the vehicle.
If an infant or child is traveling in the vehicle:
R Secure the child with a child or infant seat
restraint system appropriate to the age and
weight of the child.
R Make sure that the infant or child is
properly secured at all times while the
vehicle is in motion.
Mercedes-Benz recommends that you always
properly secure all infant sand children with
a child or infant seat restraint system for the
trip.
The use of sea tbelts and infan tand child
restraint systems is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadia nprovinces
Infants and children must always be seated in
an appropriate infant or child restraint system
recommended for the size and weight of the
child .The infant or child restraint system
must be properly secured in accordance with
the manufacturer's instructions.
All infant or child restraint systems must meet
the following standards:
R U.S. Federal Motor Vehicle Safety
Standards 213 and 225
R CanadianM otor Vehicle Safety Standards
213 and 210.2
Confirmation that the child restraint system
corresponds to the standards can be found
on an instruction label on the child restraint
system. This confirmation can also be found
in the installation instructions that are
included with the child restraint system.
Always read and follow the manufacturer's
instructions when using an infant or child
restraint system or booster seat. Observe the warning labels in the vehicle
interior or on the infant or child restraint.
Special seat belt retractor G
WARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt
retractor is disabled and the inertia real draws
in a portion of the seat belt. The seat belt
cannot be immediately refastened. There is
an increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying
attention to road and traffic conditions.
Reactivate the special seat belt retractor and
secure the child restraint system properly.
Installing a child restraint system:
X Always comply with the manufacturer's
installation instructions.
X Pull the seat belt smoothly from the seat
belt retractor.
X Engage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
X Pull the seat belt out fully and let the seat
belt retractor retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
X Push down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
X Always comply with the manufacturer's
installation instructions.
X Press the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated.
For more information about releasing the seat
belt with the release button, see "Releasing
seat belts" (Y page 60). Children in the vehicle
65Safety Z

LATCH-type (ISOFIX) child seat anchors
in the rear
G
WARNING
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protective effect for
children whose weight is greater than 48 lbs
(22 kg) who are secured using the safety belt
integrated in the child restraint system. In the
event of an accident, a child might not be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If the child weighs more than 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restraint
systems with which the child is also secured
with the vehicle seat belt .Also secure the
child restraint system with the Top Tether
belt, if available.
When installing a child restraint system, be
sure to observe the manufacturer's
installation instructions and the instructions
for correct use of the child restraint system. Coupe
Installation instructions
0002indicate the
installation location of securing rings 0003.
X To install the LATCH-type (ISOFIX) child
restraint system in the Coupe: press the
upholstery over both slots above securing
rings 0003to the side. Cabriolet
Securing rings
0002are located betwee nthe
seat cushion and the seat backrest.
X Install the LATCH-type (ISOFIX) child
restraint system on both LATCH-type
(ISOFIX) securing rings 0002.Comply with the
child restraint system manufacturer's
instructions when installing the LATCH-
type (ISOFIX) child restraint system.
LATCH-type (ISOFIX) is a standardized
securing system for specially designed child
restraint systems on the rear seats. The
LATCH-type (ISOFIX) securing rings for two
LATCH-type (ISOFIX) child restraint systems
are installed on the left and right of the rear
seats.
Non-LATCH-type (ISOFIX) child seats may
also be used and can be installed using the
vehicle's seat belt system. Install the child
seat according to the manufacturer's
instructions.
Top Tether Top Tether anchorages
G
WARNING
If the rear seat backrests are not locked, they
could fold forwards in the event of an
accident, heavy braking or sudden changes of
direction .As a result, child restraint systems
cannot perform their intended protective
function. Rear seat backrests that are not
locked can also cause additional injuries, e.g.
in the event of an accident. This poses an
increased risk of injury or even fatal injury. 66
Children in the vehicleSafety

Always lock rea
rseat backrests after
installing a Top Tether belt. Observe the lock
verification indicator. Adjust the rear seat
backrests so that they are positioned
vertically.
Top Tether provides an additional connection
between the LATCH-type (ISOFIX) child
restraint system secured with LATCH-type
(ISOFIX) and the rear seat. This helps reduce
the risk of injury even further. If the child
restraint system is equipped with Top Tether,
this should always be used.
The Top Tether anchorage points are installed
in the rear compartment behind the head
restraints.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunction
display in the instrument cluster. A warning
tone also sounds. The Coupe has Top Tether anchorages. X
Press down the rear of cover 0003in the
direction of the arrow.
Cover 0003is raised slightly at the front.
X Fold up cover 0003of Top Tether anchorage
0023.
X Depending on the model and version, and
according to the manufacturer's
installation instructions, route Top Tether
belt 0020on the left and right past head
restraint 0002.
or
X Route Top Tether belt 0020over the center of
the head restraint.
X Hook Top Tether hook 0022into Top Tether
anchorage 0023.
X Make sure that Top Tether belt 0020is not
twisted.
X Install the LATCH-type (ISOFIX) child
restraint system with Top Tether .Always
comply with the child restraint system
manufacturer's installation instructions
when doing so. Make sure that Top Tether
belt 0020is tight. Child-proof locks
Important safety notes G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury. Children in the vehicle
67Safety
Z

Trunk partition
General notes !
To avoid damaging the sof ttop or load
when folding back the soft top, observe the
following:
R when the trunk partition is open, do not
place any objects in or behind the net on
the side that are so long they could
obstruct the trunk partition or damage
the opened soft top.
R make sure that the cargo does not push
the trunk partition upwards.
The soft top can only be opened when the
trunk partition is closed.
The trunk partition can be used to cover
luggage and loads in the trunk.
Opening and closing X
To close: pull trunk partition 0002by the
handle in the direction of the arrow until it
rests on the sides of the trunk.
Trunk partition 0002finishes closing
automatically.
X To open: push trunk partition 0002against
the direction of the arrow by the handle.
The trunk partition finishes opening
automatically. Brackets for the wind screen
G
WARNING
If you use the wind screen in darkness or in
other conditions offering poor visibility, your
view to the rear is further impaired. There is a
risk of an accident.
Only use the wind screen when visibility
conditions are good.
! Mercedes-Benz recommends that you
only use wind screens which have been
tested and approved for Mercedes-Benz
vehicles. This helps to prevent damage to
the vehicle.
! Observe the backrest position of the front
seats if the wind screen is installed, since
the backrest could collide with the wind
screen here. The wind screen protects against wind when
driving with the soft top open. It is secured
above the rear bench seats. For this reason,
only the driver and the front passenger can
travel in the vehicle when the wind screen is
installed.
X
When installing the wind screen, use lateral
brackets 0002.
Observe the manufacturer's installation
instructions. 106
Soft top (Cabriolet)Opening and closing

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 25).Notes on breaking-in
anew vehicle Important safety notes
New and replaced brake pads and discs only
reach their optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applying greater force
to the brake pedal. The first 1000 miles(1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
R You should therefore drive at varying
vehicle and engine speeds for the first
1000 miles (1500 km).
R Avoid heavy loads, e.g .driving at full
throttle, during this period.
R Change gearing ood time, before the
tachometer needle is 0001of the way to the
red area of the tachometer.
R If possible, do not depress the accelerator
pedal past the point of resistance
(kickdown).
After 1000 miles (1500 km), you can increase
the engine speed gradually and accelerate
the vehicle to full speed. i
You should also observe these notes on
breaking in if the engine or parts of the drive
train on your vehicle have been replaced.
i Always observe the respective speed
limits. Driving
Important safety notes
G
WARNING
Objects in the driver's footwell can restric tthe
pedal travel or obstruct adepressed pedal.
The operating and road safety of the vehicle
is jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficien tclearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another. G
WARNING
Unsuitable footwear can hinde rcorrect usage
of the pedals, e.g.:
R shoes with thick soles
R shoes with high heels
R slippers
There is a risk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect .You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. 164
DrivingDriving and parking