2016 MERCEDES-BENZ C CLASS wheel

Aut oma tic locking featu reX
To deactivate: press and hold butto n C for
approximately fiv e seconds until a tone
sounds. X
To activate: press and hold butto n D for
approximately fiv e seconds until a tone
sounds.
If you press on e of th e two buttons and do no t
hear a tone , th e relevan t setting has already
been selected.
The vehicl e is locke d automatically when th e
ignition is switched on and th e wheels are turn-
ing .
You could therefor e be locke d out if:R
th e vehicl e is bein g pushed.R
th e vehicl e is bein g towed.R
th e vehicl e is on a roller dynamometer.
i You can also activat e and deactivat e th e
automatic locking function via COMAND or
Audio 20 (see th e Digital Operator' s Manual).
Unlocking/locking driver's door with
mechanical key
i If you want to centrally loc k th e vehicl e usin g
th e mechanical key, begi n by pressing th e
locking butto n for th e interior locking mech-
anism while th e driver's door is open . The n
loc k th e driver's door usin g th e mechanical
key. X
Inser t th e mechanical ke y int o opening C in
th e protective cap .X
Pull and hold th e door handle. X
Pull th e protective cap on th e mechanical ke y
as straight as possibl e away from th e vehicl e
until it releases. X
Releas e th e door handle.
X
To unlock: tur n th e mechanical ke y counter-
clockwise as far as it will go to position G .X
To lock: tur n th e mechanical ke y clockwise as
far as it will go to position G .
If you use th e mechanical ke y to unloc k and
open th e driver's door , th e anti-thef t alarm sys-
te m will be triggered . Switc h off th e alarm
( Y
page 79).
Trunk
Import ant safety notes
G WARNIN G
Combustion engines emi t poisonous exhaust
gase s suc h as carbon monoxide. Exhaust
gase s can ente r th e vehicl e interior if th e
trunk lid is open when th e engin e is running,Trunk 89
Opening and closing Z

Correct driver's seat position
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, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
Observe the following when adjusting steering
wheel C , seat belt D and driver's seat

Always make sure that the driver's seat is
engaged before starting 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, steer-
ing 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 adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
G WARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection 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 instal-
led. 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 back-
rest to an almost vertical position. When brak-
ing 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.
! 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 heat-
ing 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 passen-
gers, if possible. R
when the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
! Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be dama ged.
i The rear-compartment head restraints can
be removed ( Y
page 107).
Vehicles without the through-loading feature:
the head restraints cannot be removed from
the rear compartment seats.
For more information, contact a qualified spe-
cialist workshop.
i Related topic: R
Rear bench seat through-loading feature
( Y
page 311) Seats 105
Seats, steering wheel an d mirrors Z

Adjusting the head restraint height
ma nually X
To raise: pull th e head restrain t up to th e
desired position .X
To lower : press release catch C in th e direc -
tion of th e arrow and push th e head restrain t
down to th e desired position .
Adjusting the head restraint fore-and-
aft position ma nually
Wit h this function you can adjust th e distanc e
between th e head restrain t and th e bac k of th e
seat occupant's head .X
To mov e forwards : pull th e head restrain t
forward s in th e direction of th e arrow until it
engage s in th e desired position .X
To mov e backwards : press and hold release
butto n C .X
Push th e head restrain t back.X
Releas e th e release butto n once th e head
restrain t is in th e desired position .X
Ensur e that th e head restrain t has engage d
properly. Adjusting the height of the head
restraints elect ri cally X
To adjust th e hea d restrain t height : slid e
th e switch for head restrain t adjustmen t
( Y
page 106) up or down in th e direction of th e
arrow.
Vehicles wit h AM G Performance Seat: th e
height of th e head restraints canno t be adjus-
ted.
Adjusting the rear seat head restraint
height X
Once th e head restrain t is fully lowered, press
release catch C . X
To raise: pull th e head restrain t up to th e
desired position . X
To lower : press release catch C and push
th e head restrain t down until it is in th e
desired position .
Installing and removing rear head
restraints X
Releas e th e rear seat backrest and fol d it
slightly forward s ( Y
page 311).X
To remove: pull th e head restrain t up to th e
stop. X
Press release catch C and pull th e head
restrain t out of th e guides.X
To re-install : insert th e head restrain t so that
th e notches on th e bar are on th e lef t when
viewed in th e direction of travel .X
Push th e head restrain t down until you hear it
engage in position .X
Fold bac k th e rear seat backrest until it
engages. Seats 107
Seats, steering wheel and mirrors Z

Switching the seat ventilation on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected. X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 146).X
To switch on: press button C repeatedly
until the desired ventilation level is set. X
To switch off: press button C repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i You can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature ( Y
page 96). The seat ventilation of
the driver's seat automatically switches to the
highest level.
i When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation. Seats 109
Seats, steering wheel and mirrors Z

Problems with the seat heating or seat ventilation Problem
Possible causes/consequences and P Solutions
Seat heating or seat ven-
tilation has been
switched off prematurely
or cannot be switched
on. The on-board voltage is too low because too many electrical consum-
ers are switched on. X
Switch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
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, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
Children could injure themselves if they
adjust the steering wheel. 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.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock. Adjusting the steering wheel man-
ually
C
Release lever D
To adjust the steering wheel height

Adjusting the steering wheel elect ri -
cally
C
To adjust th e steering whee l position (fore-
and-af t adjustment)D
To adjust th e steering whee l height
i Further relate d subjects :R
EASY-ENTRY/EXIT feature ( Y
page 112)R
Storing setting s ( Y
page 116)R
Operating th e on-board computer
( Y
page 236).
Steering wheel heating
Switching on/off
X
Turn th e SmartKey to position 2 in th e ignition
loc k ( Y
page 146).X
To switch on/off: tur n th e lever in th e direc -
tion of arrow C or D .
Indicato r lamp

Problems with the steering wheel heating Problem
Possible causes/consequences and P Solutions
The steering wheel heat-
ing has switched off pre-
maturely or cannot be
switched on. The on-board voltage is too low because too many electrical consum-
ers are switched on. X
Switch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
EASY-ENTRY/EXIT feature
Important safety notes
G WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position but-
tons. The adjustment process is stopped. This
function is only available on vehicles with mem-
ory function.
G WARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, 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
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off. The EASY-ENTRY/EXIT feature makes getting in
and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature using the multimedia sys-
tem (see the separate operating instructions).
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
with KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1R
with the SmartKey: open the driver's door;
the SmartKey must be in position 0 or 1 in the
ignition lock ( Y
page 146) R
open the driver's door when the ignition is
switched off
i The steering wheel only tilts upwards if the
driving position is stored after the steering
column adjustment has been adjusted
( Y
page 116).
The most recent driving position of the steering
wheel is stored if: R
the ignition is switched off R
the setting is stored with the memory function
( Y
page 116).
i The steering wheel only moves upwards if it
has not already reached the upper steering
limiter.112
Steering wheel
Seats, steering wheel and mirrors