2012 MERCEDES-BENZ C-Class SEDAN height adjustment

XIf necessary, adjust the seat belt to the
appropriate height ( Y page 51).XIf necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see ( Y page 55).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Y page 51).
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Adjust the height so that the upper part of the
seat belt is routed across the center of your
shoulder.
XTo raise: slide the belt sash guide upwards.
The belt sash guide engages in various
positions.XTo lower: press and hold belt sash guide
release :.XSlide the belt sash guide downwards.XRelease belt sash guide release : and
make sure that the belt sash guide has
engaged.Releasing seat beltsXPress release button ?(Y page 50) and
guide belt tongue ; back towards belt
sash guide :.
!
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Consult an authorized Mercedes-
Benz Center.
Belt warning for the driver and front
passenger
Regardless of whether the driver and front
passenger have fastened their seat belts
already, the 7 seat belt warning lamp
lights up for 6 seconds after every engine
start. It then goes out if the driver and the
front passenger have fastened their seat
belts.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. The warning tone goes out
after approximately six seconds or once the
driver's seat belt is fastened.
If the driver or front passenger have not
fastened their seat belt after 6 seconds and
the doors are closed, the 7 seat belt
warning lamp lights up.
R until the driver or the front passenger have
fastened their seat belts
R if a vehicle speed of 15 mph (25 km/h) is
exceeded once, a warning tone with
increasing intensity sounds additionally for
a maximum of 60 seconds or until the driver
or front passenger have fastened their seat
belts.
If the driver or front passenger undo their seat
belts during the journey, the 7 seat belt
warning lamp lights up and the warning tone
sounds again.
Occupant safety51SafetyZ

passenger front air bag is deactivated.
Should the 4 5 indicator lamp not
illuminate or go out while the restraint is
installed, please check installation.
Periodically check the 4 5 indicator
lamp while driving to make sure the 4
5 indicator lamp is illuminated. If the
4 5 indicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
A child 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.GWARNING
Infants and small children should never share
a seat belt with another occupant. During an
accident, they could be crushed between the
occupant and seat belt.
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.
Children too big for a toddler restraint must
ride in seats using regular seat belts. Position
the shoulder belt across the chest and
shoulder, not face or neck. A booster seat
may be necessary to achieve proper seat belt
positioning for children over 41 lb (18 kg) until
they reach a height where a lap/shoulder belt
fits properly without a booster.
When the child restraint is not in use, 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.
If an infant or child is traveling in the vehicle:XSecure the infant or child with an
appropriate infant or child restraint
recommended for the child's age and
weight.XMake sure that the infant or child is
properly secured at all times while the
vehicle is in motion.GWARNING
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, 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. The children
could:
R injure themselves on parts of the vehicle
R be seriously or fatally injured through
excessive exposure to extreme heat or cold
R injure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWARNING
Do not carry heavy or hard objects in the
passenger compartment or trunk unless they
are firmly secured in place.
54Children in the vehicleSafety

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.
! 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 the "Interior care" section.
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.
! When you move the seats, make sure that
there are no objects in the footwell or
behind the seats. Otherwise, you could
damage the seats and the objects.
i The head restraints in the front seats are
equipped with the NECK-PRO system
( Y page 47). For this reason, it is not
possible to remove the head restraints
from the front seats.
Vehicles without the through-loading
feature: the head restraints cannot be
removed from the rear compartment seats.
Please contact an authorized Mercedes-
Benz Center for more information.
i Other topics:
R Rear bench seat through-loading feature
( Y page 256)Adjusting the seats manually and
electrically:Backrest angle;Seat height=Seat cushion angle?Seat fore-and-aft adjustment
i AMG vehicles are equipped with a seat
with an integrated head restraint. It is
therefore not possible to set the height and
angle of the head restraint.
i Adjust the seat cushion angle so that your
thighs are lightly supported.
Seat fore-and-aft adjustment
XLift handle ? and slide the seat forwards
or backwards.XRelease lever ? again.
Make sure that you hear the seat engage in
position.
Seat cushion angle
XTurn handwheel = in the desired direction.
Adjusting the seats electrically
i Vehicles without Memory function: the
seats can be adjusted within three minutes
of a front door being opened.
94SeatsSeats, steering wheel and mirrors

The time period starts over again if, within
these three minutes, you:
R open or close a front door
R insert the SmartKey into the ignition lock
or remove it from the ignition lock
R switch the ignition on or off
If the SmartKey is in position 2 in the
ignition lock, the seats can be adjusted at
any time.
Depending on the equipment, the seat
adjustment buttons are either located on the
side of the seat or on the door control panel.:Head restraint height;Seat cushion angle=Seat height?Seat fore-and-aft adjustmentABackrest angle:Seat cushion angle;Seat height=Seat fore-and-aft adjustment?Backrest anglei You can store the seat settings using the
memory function ( Y page 103).
i AMG vehicles are equipped with a seat
featuring an integrated head restraint and
the head restraint adjustment button is
deactivated. It is therefore not possible to
set the height and angle of the head
restraint.
Adjusting the head restraints
Adjusting the head restraints manually
Adjusting the head restraint height 3
XTo raise:
pull the head restraint up to the
desired position.XTo lower: press release catch : in the
direction of the arrow and push the head
restraint down to the desired position.
Adjusting the angle of the head restraints
3 For vehicles without memory function only.Seats95Seats, steering wheel and mirrorsZ

XPush or pull the lower edge of the head
restraint in the direction of the arrow.
Adjusting the head restraint height
electrically 4
XTo adjust the head restraint height:
slide
the switch for head restraint adjustment
( Y page 94) up or down in the direction of
the arrow.
Adjusting luxury head restraints
GWARNING
When folding back the side cushions, never
reach between the side cushion and the
mounting post. You could otherwise be
trapped.
XTo adjust the side bolsters of the head
restraint: push or pull right and/or left-
hand side bolster : into the desired
position.XTo adjust the angle of the head
restraint: push or pull the head restraint in
the direction of arrow ;.
Rear seat head restraints
GWARNING
For safety reasons, always drive with the rear
head restraints in the upright position when
the rear seats are occupied.
Keep the area around head restraints clear of
articles (e.g. clothing) to not obstruct the
folding operation of the head restraints.GWARNING
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint in such a way 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.
With a rear seat occupied, make sure to move
the respective head restraint up from the
lowest non-use position and have the
occupant adjust the head restraint properly.
Do not drive the vehicle without the seat head
restraints installed when the rear seats are
occupied. Head restraints are intended to
help reduce injuries during an accident.
Adjusting the rear seat head restraint
height
If the head restraint is fully lowered, it is
necessary to press release catch :.
XTo raise: pull the head restraint up to the
desired position.XTo lower: press release catch : and push
the head restraint down until it is in the
desired position.4 For vehicles with memory function only.96SeatsSeats, steering wheel and mirrors

iIf the battery voltage is too low, the seat
ventilation may switch off.XMake sure that the SmartKey is in position
2 in the ignition lock.XTo switch on: press button : repeatedly
until the desired ventilation level is set.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature ( Y page 84). The seat
ventilation of the driver's seat
automatically switches to the highest level.
XTo switch off: press button : repeatedly
until all the indicator lamps go out.
Problems with the seat ventilation
The seat ventilation has switched off
prematurely or cannot be switched on. The
vehicle's electrical system voltage is too low
because too many electrical consumers are
switched on.
XSwitch off electrical consumers which you
do not need, such as the rear window
defroster or interior lighting.
Steering wheel
Important safety notes
GWARNING
Do not adjust the steering wheel while driving.
Adjusting the steering wheel while driving, or
driving without the steering wheel adjustment
feature locked 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.
Adjusting the steering wheel
manually
:Release lever;To adjust the steering wheel height=To adjust the steering wheel position
(fore-and-aft adjustment)XPush release lever : down completely.
The steering column is unlocked.XAdjust the steering wheel to the desired
position.XPush release lever : up completely.
The steering column is locked.XCheck if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction.Steering wheel99Seats, steering wheel and mirrorsZ

Adjusting the steering wheel
electrically:To adjust the steering wheel height;To adjust the steering wheel position
(fore-and-aft adjustment)
i Other topics:
R EASY-ENTRY/EXIT feature
( Y page 100)
R storing settings ( Y page 103)
EASY-ENTRY/EXIT system
Important safety notes
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board
computer ( Y page 209).
GWARNING
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 the
memory position switch.
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.
GWARNING
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.
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active
The steering wheel swings upwards when
you:
R remove the SmartKey from the ignition lock
R open the driver's door and KEYLESS-GO is
in position 1
R open the driver's door and the SmartKey is
in position 0 or 1 in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper end
stop.
Position of the steering wheel for
driving
The steering wheel is moved to the last
selected position when:
R the driver's door is closed.
R you insert the SmartKey into the ignition
lock.
or
R you press the Start/Stop button once on
vehicles with KEYLESS-GO.
When you close the driver's door with the
ignition switched on, the steering wheel is
also automatically moved to the previously
set position.
The last position of the steering wheel is
stored after each manual setting or when you
store the setting with the memory function
( Y page 103).
100Steering wheelSeats, steering wheel and mirrors