
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

The seat belt should:
R
fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the hip
joints
X Before starting off, adjust the rear-view
mirror and the exterior mirrors in such a
way that you have a good view of road and
traffic conditions (Y page 127).
X Vehicles with a memory function: save
the seat, steering wheel and exterior mirror
settings with the memory function
(Y page 130). Seats
Important safety notes
G
WARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat, head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. G
WARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjustmen
tbuttons and become trapped.
There is a ris kofinjury.
While moving the seats, make sure tha tyour
hands or other body parts do not get under
the lever assembly of the seat adjustment
system. G
WARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the
seat guide rail. There is arisk of injury.
Make sure when adjusting aseat that no one
has any body parts in the sweep of the seat. G
WARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level. G
WARNING
The seat belt does not offer the intended level
of protection if you have not moved the
backrest to an almost vertical position .When
braking or in the event of an accident, you
could slide underneath the seat belt and
sustain abdomen or neck injuries, for
example. This poses an increased risk of
injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder. Seats
117Seats, steering wheel and mirrors Z

!
To avoid damage to the seats and the seat
heating, observe the following information:
R keep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat covers are damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see "Interior care".
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating
materials, e.g. blankets, coats, bags,
seat covers, child seats or booster seats.
! Make sure that there are no objects in the
footwell or behind the seats when resetting
the seats. There is a risk that the seats
and/or the objects could be damaged.
i The head restraints in the front seats are
installed with the NECK-PRO system
(Y page 55). For this reason, it is not
possible to remove the head restraints
from the front seats.
For more information, contact a qualified
specialist workshop. Adjusting the seats
0002
Head restraint height
0003 Seat cushion angle
0023 Seat height
0022 Seat fore-and-aft adjustment
0020 Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previouslyinan
unfavorable position.
i You can store the seat settings using the
memory function (Y page 130).
i Vehicles with the through-loading
feature: if you fold down a rear seat
backrest, the respective front seat is
moved forwards slightly if necessary. This
prevents the seats from colliding. Adjusting the head restraints
Important safety notes G
WARNING
You could lose control of your vehicle if you
do the following while driving:
R adjust the driver's seat ,head restraint,
steering wheel or mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint,
steering wheel and mirror and fasten your
seat belt before starting the engine. 118
SeatsSeats, steering wheel and mirrors

G
WARNING
Childre ncould become trapped if they
activate the memory function, particularly
when unattended. There is arisk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
With the memory function, you can store up
to three different settings, e.g. for three
differen tpeople.
The following settings are stored as a single
memory preset:
R position of the seat, backrest and head
restraint
R driver's side: position of the exterior
mirrors on the driver's and front-passenger
sides X
Adjust the seat (Y page 118).
X On the driver's side, adjust the steering
wheel (Y page 125)a nd the exterio rmirrors
(Y page 127).
X Press memory button Mand one of the
storage position buttons 1,2or 3within
three seconds.
The settings are stored in the selected
prese tposition. Atone sounds when the
settings have been completed. Calling up
astore dsetting
X Press and hold the relevant storage
position button 1,2or 3, until the seat, steering wheel and exterio
rmirrors are in
the stored position.
i The setting procedure is interrupted as
soon as you release the storage position
button. Memory function
131Seats, steering wheel and mirrors Z

Display messages Possible causes/consequences and
0001 Solutions
Fo
rfurther information about the Occupan tClassification System,
see (Y page 50). Front Passenger
Airbag Enabled
See Operator's
Manual The front-passenger air bag is enabled during the journey, even
though:
R
a child, a small adult or an object weighing less than the
system's weight threshold is located on the front-passenger
seat
or
R the front-passenger seat is unoccupied
The system may detect objects or forces applying additional
weight on the seat.
G WARNING
The air bag may deploy unintentionally.
There is an increased risk of injury.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 182).
X Switch the ignition off.
X Open the front-passenger door.
X Remove the child and the child restraint system fro mthe front-
passenger seat.
X Make sure that there are no objects on the seat adding to the
weight.
The system may otherwise detect the additional weight and
interpret the seat occupant's weight as greater than it actually
is.
X Keep the seat unoccupied, close the front-passenger door and
switch on the ignition.
X Observe the PASSENGER AIR BAG OFF indicator lamp in the
center console and the multifunction display and check the
following:
Seat unoccupied and ignition switched on:
R the PASSENGER AIR BAG OFF indicator lamp must light up and
remain lit. If the indicator lamp is on, OCS (Occupant
Classification System) has disabled the front-passenger air bag
(Y page 50).
R the Front Passenger Airbag Enabled See Operator's Manual or
Front Passenger Airbag Disabled See Operator's Manual display messages must not be shown in
the multifunction display. 256
Display messagesOn-board computer and displays