key MERCEDES-BENZ C-CLASS COUPE 2011 User Guide

Child seat on the front-passenger seat
Warning notice on the front-passenger sun visor
Warning symbol for a rearward-facing child
restraint system G
WARNING
If the front-passenger airbag is no tdisabled:
R a child secured in a child restraint system
on the front-passenge rseat could be seri-
ously and even fatally injured by the front-
passenger airbag deploying. This is espe-
cially a risk if the child is in the immediate
vicinity of the front-passenger airbag when
it deploys.
R never secure a child on the front-passenger
seat in a rearward-facing child restraint sys-
tem. Only secure a rearward-facing child
restraint system on a suitable rear seat.
R always move the front-passenger seat to
the rearmost position if you secure a child
in a forward-facing child restraint system
on the front-passenger seat. The front-passenger airbag is not disabled:
R
on vehicles without automatic child seat
recognition on the front-passenger seat
R in vehicles with automatic child seat rec-
ognition in the front-passenger seat, if no
special child restraint system with trans-
ponders for automatic child seat recogni-
tion in the front-passenger seat has been
fitted
R on vehicles with automatic child seat rec-
ognition on the front-passenger seat, if the
PASSENGER AIRBAG OFF indicator lamp
4 is not lit.
To make you aware of this danger, a corre-
sponding warning sticker has been affixed on
the dashboard and on both sides of the sun
visor on the front-passenger side.
Information about recommended child
restraint systems is available at any
Mercedes-Benz Service Centre.
Automatic child seat recognition on the
front-passenger seat If your vehicle does not have automatic child
seat recognition
1
on the front-passenger
seat, this is indicated by a special sticker. The
sticker is affixed to the side of the dashboard
on the front-passenger side. The sticker is
visible when you open the front-passenger
door.
1 Vehicles without automatic child seat recognition on the front-passenger seat: if you turn the key to position
2int he ignition lock, the 4PASSENGER AIRBAG OFF indicator lamp lights up briefly but has no function.
It does not indicate that there is automatic child seat recognition on the front-passenger seat. Children in the vehicle
57Safety Z

The front-passenger seat sensor system for
child restraint systems detects whether a
special Mercedes-Benz child seat with a
transponder for automatic child seat recog-
nition has been fitted. In such cases,
PASSENGER AIRBAG OFF indicator lamp
4: lights up. The front-passenger airbag
is disabled. G
WARNING
If the 4 PASSENGER AIRBAG OFF indica-
tor lamp does not light up when the child
restraint system is fitted, the front-passenger
airbag has not been disabled. If the front-
passenger airbag deploys, the child could be
seriously or even fatally injured.
Proceed as follows:
R do not use a rearward-facing child restraint
system on the front-passenger seat.
R fit a rearward-facing child restraint system
on a suitable rear seat.
or
R only use a forward-facing child restraint
system on the front-passenger seat and
move the front-passenger seat to the rear-
most position.
R have the automatic child seat recognition
checked at a qualified specialist workshop.
To ensure that the automatic child seat rec-
ognition on the front-passenger seat func-
tions/communicates correctly, never place
objects, e.g. a cushion, under the child
restraint system. The entire base of the child
restraint system must always rest on the seat
cushion. An incorrectly fitted child restraint system cannot perform its intended protec-
tive function in the event of an accident, and
could lead to injuries.
i If the front-passenger airbag is disabled
by the automatic child seat recognition, the
following remain enabled on the front-
passenger side:
R the sidebag
R the pelvisbag
R the windowbag
R the belt tensioner G
WARNING
Do not place electronic devices on the front-
passenger seat, e.g.:
R laptops, when switched on
R mobile phones
R cards with transponders, e.g. ski passes or
access cards
Signals from electronic equipment can cause
interference in the automatic child seat rec-
ognition sensor system. This can lead to a
system malfunction. This may cause the
4 PASSENGER AIRBAG OFF indicator
lamp to light up without there being a child
seat with transponders for automatic child
seat recognition fitted. The front-passenger
airbag will not then deploy during an accident.
It is also possible that the 6SRS warning
lamp lights up and/or the 4PASSENGER
AIRBAG OFF indicator lamp does not light up
briefly when you turn the key in the ignition
lock to position 2.
ISOFIX child seat securing system for
the rear seats ISOFIX is a standardised securing system for
specially designed child restraint systems on
the rear seats. Securing rings for two ISOFIX
child restraint systems are fitted on the left
and right of the rear seats.58
Children in the vehicleSafety

Problems with child seat recognition
Problem Possible causes/consequences and
M Solutions
The
4 PASSENGER
AIRBAG OFF indicator
lamp on the centre con-
sole is lit. As
pecial Mercedes-Benz child seat with a transponder for auto-
matic child seat recognition has been fitted to the front-passenger
seat. The front-passenger airbag has therefore been disabled as
desired. G
Risk of injury
There is no child seat fitted to the front-passenger seat. Automatic
child seat recognition is malfunctioning.
It is also possible that the 6SRS warning lamp lights up and/
or the 4PASSENGER AIRBAG OFF indicator lamp does not light
up briefly when you switch the ignition on.
X Remove electronic equipment from the front-passenger seat,
e.g.
R
laptop
R mobile phone
R cards with transponders, such as ski passes or access cards
If the 4 PASSENGER AIRBAG OFF indicator lamp is still lit:
X Visit a qualified specialist workshop. Suitable positioning of the child restraint systems
Key to the letters used in the table:
XS
eat which is unsuitable for children in this weight category.
US uitable for child restraint systems in the Universal category that are approved for use in
this weigh tcategory.
UF Suitable for forward-facing child restraint systems that belong to the "Universal" category and are approved for use in this weigh tcategory.
LS uitable for child restraint systems as recommended, see the following table of "Recom-
mended child restraint systems" (Y page 63). Children in the vehicle
61Safety Z

Seat positions
Weight catego-
ries Front-passenger seat Rear seat
Front-
passenger air-
bag is not disa-
bled: The front-
passenger air-
bag is disa-
bled
2 Left, right
Group 0: up to
10 kg
X
U
3
, L 3 U, L
Group 0+: up
to 13 kg
X
U
3
, L 3 U, L
Group I: 9 to
18 kg
U
3
, L 3 U
3
, L 3 U, L
Group II: 15 to
25 kg
U
3
, L 3 U
3
, L 3 U, L
Group III:2
2 to
36 kg U
3
, L 3 U
3
, L 3 U, L
"Universal" category child restraint systems can be recognised by their orange approval label.
Approval label on the child restraint system (example)
Key to the letters used in the table:
XI
SOFIX position tha tis not suitable for ISOFIX child restraint systems in this weight cat-
egory and/or size category.
IUF Suitable for forward-facing ISOFIX child seat securing systems that belong to the "uni- versal" category which are approved for use in this weight category.
IL Suitable for ISOFIX child restraint systems as recommended; see the following table of "Recommended child restraint systems" (Y page 63).
2 Vehicles with automatic child seat recognition in the front-passenger seat: a child restraint system of the
"Universal" category with a transponder for automatic child seat recognition must be fitted. The 4
PASSENGER AIRBAG OFF indicator lamp must be lit.
3 Adjust the front-passenger seat to the rearmost position and the seat backrest to a position as close to
vertical as possible. 62
Children in the vehicleSafety

Vehicles with COMAND and navigation sys-
tem: the radar sensor system is switched off
automatically in the vicinity of radio telescope
facilities (Y page 363).
Vehicles without COMAND and a navigation
system and vehicles for Australia:t he radar
sensor system and on-board computer must
be switched off in the vicinity of radio tele-
scope facilities (Y page 226).
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on (Y page 226) and be opera-
tional.
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle. Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correct key.
X To activate with the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
i The immobiliser is always deactivated
when you start the engine. ATA (Anti-Theft Alarm system)
Av isual and audible alarm is triggered if the
alarm system is primed and you open:
R a door
R the vehicle with the emergency key ele-
ment
R the boot lid
R the bonnet The alarm is not switched off, even if you
close the open door that has triggered it, for
example.
X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes .The alarm sys-
tem is primed after approximately 15 sec-
onds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
X To stop the alarm using the key: insert
the key into the ignition lock.
The alarm is switched off.
or
X Press the %or& button on the key.
The alarm is switched off.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The key
must be outside the vehicle.
The alarm is switched off.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is switched off. Tow-away protection
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This occurs if
the vehicle is jacked up on one side, for exam-
ple. Anti-theft systems
73Safety Z

X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Tow-away protection is primed after
approximately 30 seconds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
Tow-away protection is deactivated auto-
matically.
To prevent a false alarm, deactivate tow-away
protection manually if your vehicle:
R is being transported
R is being loaded onto a ferry or car trans-
porter, for example
R is parked on a movable surface, e.g .ina
split-level garage
Deactivating:
X Remove the key from the ignition lock. X
Press button :.
Indicator lamp ;lights up briefly.
X Lock the vehicle with the key or KEYLESS-
GO.
Tow-away protection is deactivated.
Tow-away protection remains deactivated
until:
R the vehicle is unlocked again.
R a door is opened and closed again.
R the vehicle is locked again. Interior motion sensor
If the interior motion sensor is primed, a vis-
ual and audible alarm is triggered if move- ment is detected in the vehicle interior while
the vehicle is locked. This occurs if someone
reaches into the vehicle interior, for example.
To activate:
X
Make sure that:
R
the side windows are closed.
R the panorama sliding sunroof is closed.
R there are no objects, e.g. mascots, hang-
ing on the rear-view mirror or on the grab
handles on the roof trim.
This will prevent false alarms.
X Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is primed after
approximately 30 seconds.
To switch off:
X Unlock the vehicle with the key or KEY-
LESS-GO.
The interior motion sensor is deactivated
automatically.
To prevent a false alarm, deactivate the inte-
rior motion sensor if you lock your vehicle
and:
R people or animals remain in the vehicle.
R the side windows remain open.
R the panorama sliding sunroof remains
open.
Deactivating:
X Remove the key from the ignition lock. X
Press button :.
Indicator lamp ;flashes briefly. 74
Anti-theft systemsSafety

X
Lock the vehicle with the key or KEYLESS-
GO.
The interior motion sensor is deactivated.
The interior motion sensor remains deactiva-
ted until:
R the vehicle is unlocked again.
R a door is opened and closed again.
R the vehicle is locked again.
i UK only: Yourvehicle is equipped with a
double lock function .The doors cannot be
opened from the inside if the vehicle has
been locked with the key (Y page 84).
Deactivate the interior motion sensor
before locking the vehicle with the key. The
doors can then be opened from the inside
after the vehicle has been locked from the
outside with the key. Observe the "Impor-
tant safety notes" (Y page 83). Anti-theft systems
75Safety Z

Useful information
..............................78
Key ....................................................... 78
Doors .................................................... 83
Boot ...................................................... 85
Side windows ...................................... 88
Sliding sunroof .................................... 90 77Opening and closing

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviations are possible. Please
note that your vehicle may not be equipped
with all features described. This also
applies to safety-relevan tsystems and
functions.
i Please read the information on qualified
specialist workshops (Y page 26).Key
Key functions
Locking an dunlocking centrally The key centrally locks/unlocks:
R
the doors
R the boot lid
R the fuel filler flap G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the
vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people in need of special assistance if
the vehicle has been locked with the key. As
a result, they may not be able to free them-
selves in the event of an emergency. As a
result, they could be seriously or even fatally
injured by prolonged exposure to extremely
high or low temperatures, for example. In this
case, rescuing people from outside the vehi-
cle is difficult.
Deactivate the interior motion sensor before
you lock the vehicle with the key. The doors
can then be opened from the inside after the vehicle has been locked from the outside with
the key.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open a door from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for a short time. G
WARNING
If a key ring is too heavy or too large, the
weight acting on the key could cause it to turn
in the ignition lock or catch on the steering
wheel. This could cause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attach any heavy or large key rings to the key
that is inserted in the ignition. :
& To lock the vehicle
; F To unlock the boot lid
= % To unlock the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times.
When it is dark, the surround lighting also
comes on if it is activated in the on-board
computer (Y page 225).78
KeyOpening and closing

You can also set an audible signal to confirm
that the vehicle has been locked or unlocked.
The audible signal can be activated and deac-
tivated using the on-board computer
(Y page 226).
X To unlock centrally: press the%but-
ton.
If you do not open the vehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-theft system is primed again.
X To lock centrally: press the&button. KEYLESS-GO
You can start, lock or unloc kthe vehicle using
KEYLESS-GO. To do this, you only need carry
the key with you. When you touch the surface
of the sensors on the vehicle's outside door
handles, KEYLESS-GO establishes a radio
connection between the vehicle and the key.
When the engine is started and whilst you are
driving, KEYLESS-GO also checks whether a
valid key is in the vehicle by periodically
establishing radio contact.
When locking or unlocking with KEYLESS-GO,
the distance between the key and the door
handle you wish to lock or unlock must not
be greater than 1 m. X
To unlock the vehicle: touch the inner
surface of the door handle.
X To lock the vehicle: touch sensor sur-
face :.
X Convenience closing feature: touch
recessed sensor surface ;for an exten-
ded period (Y page 89).
If you pull on the handle of the boot lid, only
the boot of the vehicle is unlocked. Changing the settings of the locking
system
You can change the settingoft he locking
system in such a way that only the driver's
door and the fuel filler flap are unlocked. This
is useful if you frequently travel on your own.
X To change the setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp (Y page 81)
flashes twice.
i If the setting of the locking system is
changed within the signal range of the vehi-
cle, pressing the &or% button locks
or unlocks the vehicle.
The key now functions as follows:
X To unlock the driver's door: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock the driver's door: touch the
inner surface of the door handle on the
driver's door.
X To unlock centrally: touch the inner sur-
face of the front-passenger door handle.
X To lock centrally: touch the outer sensor
surface on one of the door handles. Key
79Opening and closing Z