keyless MERCEDES-BENZ C-CLASS SALOON 2011 User Guide

Unlocking and opening the doors
from the inside
For all countries except the United King-
dom: you can open a door from inside the
vehicle even if it has been locked.
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. Deactivate the interior motion sensor
(Y page 81) 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.
You can only open the rear doors from inside
the vehicle if they are not secured by the
child-proof locks (Y page 71).X
Pull door handle ;.
If the door is locked, locking knob :pops
up. The door is unlocked and can be
opened. Centrally locking and unlocking the
vehicle from the inside
You can centrally lock or unlock the vehicle
from the inside.
The central locking/unlocking button does
not lock or unlock the fuel filler flap.
i You cannot unlock the vehicle centrally
from the inside if the vehicle has been
locked with the key or KEYLESS-GO. i
It is only possible to lock the vehicle cen-
trally if the front-passenger door is closed. X
To unlock: press button :.
X To lock: press button ;. Automatic locking feature
The vehicle is locked automatically when the
ignition is switched on and the wheels are
turning.
You could therefore be locked out when:
R the vehicle is being pushed.
R the vehicle is being towed.
R the vehicle is being tested on a dynamom-
eter. X
To deactivate: press and hold button :
for about five seconds until a tone sounds.
X To activate: press and hold button ;for
about five seconds until a tone sounds.
i If you press one of the two buttons and
do not hear a tone, the relevan tsetting has
already been selected. 90
DoorsOpening and closing

X
Pull the boot lid/tailgate down using
recess :.
X Estate: push the tailgate closed from out-
side the vehicle.
X If necessary, lock the vehicle with
the & button on the key (Y page 84) or
with KEYLESS-GO (Y page 85).
i If a KEYLESS-GO key is detected in the
boot/luggage compartment, the boot lid/
tailgate will not lock.
Saloon: the boot lid then opens again. Opening/closing automatically from
outside
Important safety notes 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
Monito rthe tailgate opening and closing pro-
cedures to make sure that nobody can become trapped. To stop the opening or clos-
ing procedure, press the closing button on the
tailgate again or pull the handle on the outside
of the tailgate.
! The boot lid/tailgate swings upwards and
to the rear when opened. Therefore, make
sure that there is sufficient clearance
above and behind the boot lid/tailgate.
i You will find details on the boot lid/tail-
gate opening dimensions in the Technical
data section (Y page 386).
Opening You can open the boot lid/tailgate automati-
cally with the key or the handle in the boot
lid/tailgate.
Estate with EASY-PACK tailgate:
open/
close the tailgate fully using the automatic
function after stopping the tailgate in an inter-
mediate position.
X Press and hold the Fbutton on the key
until the boot lid/tailgate opens.
or
X If the boot lid/tailgate is unlocked, pull the
handle of the boot lid/tailgate and let it go
again immediately.
Closing You can close the tailgate automatically using
the closing button
5
or the locking button 6
.
5 For vehicles with the EASY-PACK tailgate only.
6 For vehicles with the EASY-PACK tailgate and KEYLESS-GO only. Boot/luggage compartment
93Opening and closing Z

Closing button and locking button (example
:vehi-
cle with the EASY-PACK tailgate and KEYLESS-GO)
X To close: press closing button :on the
tailgate.
X To close and lock simultaneously:
Press locking button ;on the tailgate.
i If you leave a KEYLESS-GO key in the lug-
gage compartment, the tailgate will not
lock. Opening/closing automatically from
the inside
G
WARNING
Monitor the tailgate closing procedure to
make sure that nobody can become trapped.
Release the tailgate's remote operating but-
ton to stop the closing procedure.
Saloon: you can open the boot lid from the
driver's seat when the vehicle is stationary
and unlocked.
Estate with EASY-PACK tailgate: you can
open/close the tailgate from the driver's seat
when the vehicle is stationary and unlocked. Remote operating switch (example: Estate)
X To open: press the upper section of remote
operating switch :for the tailgate/boot
lid until the tailgate/boot lid opens.
X To close (Estate): turn the key to position
1 or 2in the ignition lock.
X Press the lower section of tailgate remote
operating switch :until the tailgate is
closed. Limiting the opening angle of the tail-
gate (Estate)
Important safety notes You can limit the opening angle of the tail-
gate. This is possible in the top half of its
opening range, up to approximately 20 cm
before the stop.
Limiting the opening angle can be useful if
there is not sufficien
tclearance above the
open tailgate, for example.
! Make sure there is sufficien tclearance to
open the tailgate fully when setting the
opening angle. The tailgate could otherwise
be damaged. Ideally, set the opening angle
outside.
Activating X
To open the tailgate: pull the handle on
the tailgate.
X To stop the opening procedure at the
desired position: press the closing button94
Boot/luggage compartmentOpening and closing

(Y
page 93) in the tailgate or pull the handle
on the outside of the tailgate again.
X To store the position: press and hold the
closing button in the tailgate until you hear
a short tone.
The opening angle limiter is activated. The
tailgate will now stop in the stored position
when opening.
i If you wish to open the tailgate fully, pull
the handle of the tailgate again after it has
stopped automatically. This does not
delete the stored position.
Deactivating X
Press and hold the closing button
(Y page 93) in the tailgate until you hear
two short tones. Locking the boot separately (Saloon)
In some countries, you can lock the boot sep-
arately. If you then unlock the vehicle cen-
trally, the boot remains locked and cannot be
opened.
X Close the boot lid.
X Take the emergency key element out of the
key (Y page 86). X
Insert the emergency key element into the
boot lid lock as far as the stop.
X Turn the emergency key element clockwise
from position 1to position 2. X
Remove the emergency key element.
X Insert the emergency key element into the
key. Unlocking the boot (Saloon)
! The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid.
If the boot cannot be unlocked with the key
or KEYLESS-GO, use the emergency key ele-
ment.
If you use the emergency key element to
unlock and open the boot lid, the anti-theft
alarm system will be triggered (Y page 80).
X Take the emergency key element out of the
key (Y page 86).
X Insert the emergency key element into the
boot lid lock as far as the stop. X
Turn the emergency key element anti-
clockwise from position 1as far as it will
go to position 2.
The boot is unlocked.
X Turn the emergency key element back to
position 1and remove it.
X Insert the emergency key element into the
key. Tailgate emergency release (Estate)
If the tailgate can no longer be opened from
outside the vehicle, use the emergency
release on the inside of the tailgate. Boot/luggage compartment
95Opening and closing Z

Proceed as follows if there is a risk of entrap-
ment:
With the key:
R
release the &button.
R press and hold the %button until the
side windows and the sliding sunroof or the
panorama sliding sunroof open again.
With KEYLESS-GO:
R release the sensor surface on the door han-
dle.
R pull the door handle immediately and hold
it.
The side windows and the sliding sunroof
or the panorama sliding sunroof open.
Using the key i
The key must be close to the driver's door
handle.
X Point the tip of the key at the driver's door
handle.
X Press and hold the &button until the
side windows and the sliding sunroof or the
panorama sliding sunroof are fully closed.
X Make sure that all the side windows and the
sliding sunroof or panorama sliding sunroof
are closed.
On vehicles with a panorama sliding sunroof:
X Press and hold the &button again until
the roller sunblinds of the panorama sliding
sunroof close.
X To interrupt convenience closing:
release the &button.
Using KEYLESS-GO The KEYLESS-GO key must be outside the
vehicle. All the doors must be closed. X
Touch recessed sensor surface :on the
door handle until the side windows and the
sliding sunroof or the panorama sliding
sunroof are fully closed.
i Make sure you only touch recessed sen-
sor surface :.
X Make sure that all the side windows and the
sliding sunroof or panorama sliding sunroof
are closed.
On vehicles with a panorama sliding sunroof:
X Touch recessed sensor surface :on the
door handle again until the roller sunblinds
of the panorama sliding sunroof close.
X To interrupt convenience closing:
release recessed sensor surface :on the
door handle. Resetting the side windows
You must reset each side window if a side
window can no longer be closed fully.
X Close all the doors.
X Turn the key to position 1or 2in the ignition
lock.
X Pull the corresponding switch on the door
control panel until the side window is com-
pletely closed. (Y page 97).
X Hold the switch for an additional second. 98
Side windowsOpening and closing

Position of the steering wheel when the
EASY-ENTRY/EXIT featurei
s activeThe steering wheel tilts upwards if you:
R
remove the key 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 key is in
position 0or 1in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper end
stop.
If you insert the key into the ignition lock with
the driver's door closed, the steering wheel is
automatically moved to the previously set
position.
Position of the steering wheel for driv-
ing The steering wheel is moved to the previously
set position if:
R
the driver's door is closed
R you insert the key into the ignition lock
or
R you press the Start/Stop button once on
vehicles with KEYLESS-GO.
If you close the driver's door with the key
inserted into the ignition lock, the steering
wheel is automatically moved to the previ-
ously 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 115).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident, the steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the posi-
tion of the key in the ignition lock. This makes
it easier to exit the vehicle and rescue the
occupants. The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY fea-
ture is activated in the on-board computer. Mirrors
Rear-view mirror
Rear-view mirror (manual anti-dazzle) X
Anti-dazzle mode: flick anti-dazzle
switch :forwards or back. Exterior mirrors
Adjusting the exterior mirrors G
WARNING
The exterior mirrors reduce the size of the
image. Objects are actually closer than they
appear. You could misjudge the distance from
vehicles driving behind and cause an acci-
dent, e.g. when changin glane. For this rea-
son, make sure of the actual distance from the
vehicle driving behind by glancing ove ryour
shoulder.
The convex exterior mirrors provide a larger
field of vision.
The exterior mirrors are automatically heated
if the rear window heating is switched on and
the outside temperature is low. 112
MirrorsSeats, steering wheel and mirrors

!
Never open the bonnet if a windscreen
wiper arm has been folded away from the
windscreen.
Never fold a windscreen wiper arm without
a wiper blade back onto the windscreen/
rear window.
Hold the windscreen wiper arm firmly when
you change the wiper blade. If you release
the windscreen wiper arm without a wiper
blade and it falls onto the windscreen, the
windscreen may be damaged by the force
of the impact.
Mercedes-Benz recommends that you have
the wiper blades replaced by aqualified
specialist workshop, e.g. at a Mercedes-
Benz Service Centre.
Replacing the windscreen wiper blades Removing the wiper blades
X
Remove the key from the ignition lock or
tur nthe key to position 0(KEYLESS-GO).
X Fold the wiper arm away from the wind-
screen until it engages.
X Set the wiper blade at right angles to the
wiper arm. X
Remove the wiper blade from the retaining
pin on the wiper arm in the direction of the
arrow.
Fitting the wiper blades
X Push the new wiper blade onto the retain-
ing pin on the wiper arm in the opposite
direction to the arrow. Make sure that the wiper blade slides fully
onto the retaining pin on the wiper arm.
X Turn the wiper blade parallel to the wiper
arm.
X Fold the wiper arm back onto the wind-
screen.
Replacing the rear window wiper blade G
WARNING
The wiper arm could be set in motion and
injure you if the windscreen wipers are
switched on.
Remove the key from the ignition lock before
replacing the wiper blade.
Removing the wiper blade X
Remove the key from the ignition lock.
X Fold wiper arm :away from the rear win-
dow until it engages.
X Position wiper blade ;at a right angle to
wiper arm :.
X Hold wiper arm :and press wiper
blade ;in the direction of the arrow until
it releases.
X Remove wiper blade ;.
Fitting the wiper blade
X Place new wiper blade ;onto wiper
arm :.
X Hold wiper arm :and press wiper
blade ;in the opposite direction to the
arrow until it engages. Windscreen wipers
131Lights and windscreen wipers Z

accelerate or brake suddenly. You will then
no tb e able to brake, declutch or accelerate
as intended. This could lead to accidents and
injury. G
WARNING
Do not change down for additional engine
braking on a slippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you
to lose control of your vehicle and cause an
accident.
! Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only set the automatic transmission to the
respective drive positions when the vehicle
is stationary.
Where possible, avoid spinning the drive
wheels when pulling away on slippery
roads. Otherwise, you could damage the
drive train.
! AMG vehicles: at low engine oil tempera-
tures (below +20 †), the maximum engine
speed is restricted in order to protec tthe
engine. To protect the engine and maintain
smooth engine operation, avoid driving at
full throttle when the engine is cold. Key positions
Key g
To remove the key
1 Power supply for some consumers, such
as the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position
3 To start the engine
If the key is at position 0in the ignition lock
for a longer period, it can no longer be turned
in the ignition lock. The steering is then
locked. To unlock it, remove the key and rein-
sert it into the ignition lock.
The steering wheel is locked when the key is
removed from the ignition lock.
i If the key does not belong to the vehicle
it can still be turned in the ignition lock.
However, the ignition will not be switched
on The engine cannot be started.
KEYLESS-GO General notes
Vehicles with KEYLESS-GO are equipped with
a key featuring an integrated KEYLESS-GO
function and a detachable Start/Stop button.
The Start/Stop button must be inserted into
the ignition lock and the key must be in the
vehicle.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal. Driving
153Driving and parking Z

Automatic transmission
X
Shift the transmission to position P.
The transmission position display in the
multifunction display shows P.
i You can also start the engine when the
transmission is in position N.
Starting procedure with the key i
To start the engine using the key instead
of KEYLESS-GO ,pull th eStart/Stop button
ou toft he ignition lock.
X To start a petrol engine: turn the key to
position 3in the ignition lock
(Y page 153) and release it as soon as the
engine is running.
X To startad iesel engine: turn the key to
position 2in the ignition lock
(Y page 153).
The % preglow indicator lamp in the
instrumen tcluster lights up.
X When the %preglow indicator lamp
goes out, tur nthe key to position 3
(Y page 153) and release it as soon as the
engine is running.
i You can start the engine without preglow
if the engine is warm.
i Vehicles with automatic transmis-
sion: you can also use the touch-start func-
tion. To do this, turn the key to position 3
(Y page 153) and release it immediately.
The engine then starts automatically.
Using KEYLESS-GO to startt he engineG
WARNING
You rvehicle can be started using a valid KEY-
LESS-GO key. For this reason, children should
never be left 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.
i The Start/Stop button can be used to
start the vehicle manually without inserting the key into the ignition lock. The key must
be in the vehicle and the Start/Stop button
must be inserted in the ignition lock. This
mode for starting the engine operates inde-
pendently of the ECO start/stop automatic
engine start function.
X Depress the brake pedal and keep it
depressed.
X To star tapetrol engine: press the Start/
Stop button (Y page 153) once.
The engine starts.
X To start adiesel engine: press the Start/
Stop button (Y page 153) once.
Preglow is activated and the engine starts. Pulling away
Manual transmission X
Depress the brake pedal and keep it
depressed.
X Fully depress the clutch pedal.
X Shift to either first gear or reverse gear R.
X Release the parking brake (Y page 175).
X Release the brake pedal.
X Slowly release the clutch pedal and gently
depress the accelerato rpedal.
! Change gear in good time and avoid spin-
ning the wheels. Otherwise, you could dam-
age the vehicle.
i Follow the shift recommendations in the
multifunction display for an economical
driving style (Y page 161).
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic lock-
ing feature (Y page 242). Driving
155Driving and parking Z

not been adapted to suit the climatic condi-
tions, e.g .diesel fuel fro mwarmer regions.
i Further information about country-spe-
cific fuel properties can be obtained from
oil companies, e.g .atfilling stations.
Flow improver Flow improvers can be added to improve the
cold resistance of diesel fuel. The effective-
ness of a flow improver is not guaranteed with
every diesel fuel.
Correct dosage and thorough mixing are deci-
sive factors in ensuring improvement in low-
temperature resistance. Avoid excessive dos-
age. Excessive dosage may actually decrease
low-temperature resistance under certain cir-
cumstances. Follow the manufacturer's dos-
ing instructions.
Mix the additive with the diesel in good time,
before the flow properties of the diesel
become inadequate. Malfunctions can other-
wise only be rectified by heating the entire
fuel system, e.g. by parking the vehicle in a
heated garage.
Observe the information provided by the man-
ufacturer when using a flow improver. Only
use flow improvers that have been tested and
approved by Mercedes-Benz. You can obtain
further information from any Mercedes-Benz
Service Centre. Refuelling
Fuel filler flap The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
The position of the fuel filler cap is displayed
in the instrument cluster 8.The arrow
next to the filling pump indicates the side of
the vehicle. Saloon (example)
:
To open the fuel filler flap
; To insert the fuel filler cap
= Tyre pressure table
? Fuel type
Opening X
Switch off the engine.
X Remove the key from the ignition lock.
KEYLESS-GO: open the driver's door. This
switches the ignition to position 0, which
corresponds to having removed the key.
The driver's door can be closed again.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap opens slightly.
X Open the fuel filler flap.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder
bracket on the inside of filler flap ;.
X Completely insert the pump nozzle into the
filler neck and refuel.
X Only fill the tank until the pump nozzle
switches off.
! Overfilling the fuel tank could damage the
fuel system.
Closing X
Replace the fuel filler cap and turn it clock-
wise. The fuel filler cap audibly engages.
X Close the fuel filler flap. Refuelling
171Driving and parking Z