lock MERCEDES-BENZ CLS COUPE 2011 Owner's Manual

force to a level suitable for the traffic condi-
tions.
If BAS PLUS demands particularly high brak-
ing force, PRE-SAFE
®
is activated simultane-
ously.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
R you release the brake pedal.
R no obstacle is detected in front of your
vehicle.
R there is no longe rany dange rofarear-end
collision.
BAS PLUS is then deactivated.
At speeds up to approximately 70 km/h, BAS
PLUS may also detect stationary obstacles,
for example, stopped or parked vehicles.
Vehicles without COMAND and a navigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinity of radio tele-
scope facilities (Y page 210).
For BAS PLUS to assist you when driving, the
rada rsensor system must be switched on and
operational. You can chec kthis by activating
DISTRONIC PLUS(Y page 154) or via the
"radars ensor" function in the on-board com-
puter (Y page 210). G
Risk of accident
Only clearly identified obstacles will initiate
braking assistance by BAS PLUS.
In particular, the detection of obstacles can
be restricted if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R snow or heavy rain
R interference by other radar sources
R strong radar reflections, for example in
multi-storey car parks
BAS PLUS does not react to people or ani-
mals, oncoming vehicles and crossing traffic,
or when cornering. BAS PLUS may not detect narrow vehicles
such as motorcycles and vehicles driving on
a different line.
Following a collision or accident-related dam-
age to the fron tend of the vehicle, have the
configuratio nand operatio nofthe radar sen-
sors checked at a Mercedes-Benz Service
Centre.
If BAS PLUS is not available due to a malfunc-
tion in the radar sensor system, the brake
system remains available with full brake
boosting effect and BAS. Adaptive brake lamps
i Adaptive brake lamps are only available in
certain countries.
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS
or BAS PLUS, the brake lamps flash rapidly.
In this way, traffic travelling behind you is
warned in an even more noticeable manner.
If you brake sharply from a speed of more
than 70 km/h to a standstill, the hazard warn-
ing lamps are activated automatically .Ifthe
brakes are applied again, the brake lamps
light up continuously.T he hazard warning
lamps switch off automatically if you travel
faster than 10 km/h .You can also switch off
the hazard warning lamps using the hazard
warning switch button . ESP
®
(Electronic Stability Program)
Important safety notes If ESP
®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or slip-
pery roads. ESP ®
can also stabilise the vehi-
cle during braking. 58
Driving safety systemsSafety

If you deactivate ESP
®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited and
the drive wheels are able to spin. The spin-
ning of the wheels results in a cutting
action, which provides better grip.
R traction control is still activated.
R PRE-SAFE ®
is no longer available and is
also not activated if you brake firmly with
the assistance of ESP.
R PRE-SAFE ®
Brake is no longer available and
is also not activated if you brake firmly with
the assistance of ESP ®
.
R ESP ®
still provides support when you brake
firmly.
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
the instrument cluster does not flash.Ins uch
situations, ESP ®
will no tstabilise the vehicle. X
To deactivate: press button:until the
å ESP®
OFF warning lamp in the instru-
ment cluste rlights up.
The ÷OFF message appears in the mul-
tifunction display. G
Risk of accident
ESP ®
is deactivated if the åwarning lamp
in the instrument cluster lights up continu-
ously when the engine is running.
If the ÷ warning lamp and åwarning
lamp are lit continuously, ESP ®
is not availa-
ble due to a malfunction. There is an increased risk of your vehicle skid-
ding in certain situations.
You should always adapt your driving style to
suit the prevailing road and weathe
rcondi-
tions.
X To activate: briefly press button :.
The å ESP®
OFF warning lamp in the
instrument cluster goes out. The ÷ON message appears in the multifunction dis-
play. EBD (Electronic Brake force Distribu-
tion)
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking. G
Risk of accident
If EBD has malfunctioned, the braking system
remains available with full brake boosting
effect .However, the rear wheels can still lock,
e.g. under full braking. This could cause you
to lose control of your vehicle and cause an
accident .You should therefore adapt your
driving style to the different handling charac-
teristics. ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety
and offers increased braking comfort. In addi-
tion to the braking function, ADAPTIVE BRAKE
also has the HOLD function (Y page 165) and
hill start assist (Y page 131). For further
information, see Driving tips (Y page 149). PRE-SAFE
®
Brake (vehicles with DIS-
TRONIC PLUS)
PRE-SAFE ®
Brake can help you to minimise
the risk of a frontal collision with a vehicle
ahead or reduce the effect sofsuch a colli-
sion. Driving safety systems
61Safety Z

At speeds up to approximately 70 km/h,
PRE-SAFE ®
Brake may also detect stationary
obstacles, for example stoppe dorparked
vehicles. G
Ris
kofa ccident
If, in a critical driving situation, you do not
receive a visual and acoustic warning:
R PRE-SAFE ®
Brake did no tdetec tthe risk of
a collision
R PRE-SAFE ®
Brake is switched off
R PRE-SAFE ®
Brake has failed
You must then brake to avoid a collision.
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brake in the on-board
computer (Y page 204).
After activation, the Äsymbol is dis-
played on the left in the instrumentc luster.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities ( Ypage 327).
Vehicles without COMAND and navigation,
and vehicles for Australia: near radio tele-
scope installations, the radar sensor system
must be switched off with the on-board com-
puter (Y page 210).
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on (Y page 210) and operational.
PRE-SAFE ®
Brake does not always detect
complex traffic situations properly. You can
terminate the braking action of PRE-SAFE ®
Brake in a non-critical driving situation at any
time if:
R an acoustic and visual warning occurs.
R the vehicle brakes.
To end this, you can either depress the accel-
erator pedal further, activate kickdown or
release the brake pedal. The braking action of PRE-SAFE
®
Brake is
ended automatically if:
R you manoeuvre to avoid the obstacle.
R you drive slower than approximately
15 km/h.
R there is no longer an obstacle detected in
front of your vehicle.
R there is no longer any dange rofacollision.
Following a collisio norcollision-related dam-
age to the front end of the vehicle, have the
configuration and operation of the radar sen-
sors checked. Choose a qualified specialist
workshop which has the necessary specialist
knowledge and tools for the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. Anti-theft systems
Immobiliser
The immobiliser prevents your vehicle from
being started without the correc tkey.
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. Anti-theft systems
63Safety Z

X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicato rlamp :flashes. The alarm sys-
te mi s 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. 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. in a
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, on vehicles
with KEYLESS-GO, by touching the outside
door handle.
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 64
Anti-theft systemsSafety

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 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 Make sure that all the doors and the tail-
gate are closed.
X Lock the vehicle with the key or KEYLESS-
GO.
To deactivate:
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 sliding sunroof remains open.
Deactivating:
X Remove the key from the ignition lock. X
Press button :.
Indicator lamp ;flashes briefly. X
Lock the vehicle with the key. On vehicles
with KEYLESS-GO, the locking buttons on
the door handle/boot lid can also be used.
The interior motion sensor remains deacti-
vated until:
R the vehicle is unlocked again.
R a door is opened and closed again.
R the vehicle is locked again.
i United Kingdom only: if the vehicle has
been locked with the key, the doors cannot
be opened from the inside (Y page 74).
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 73). Anti-theft systems
65Safety Z

Vehicle equipment
i This manual describes all the standard
and optional equipment of your vehicle
available at the time of publicatio nofthe
Owner's Manual. Country-specific differen-
ces are possible. Please note that your
vehicle may not be equipped with all fea-
tures described. This also applies to safety-
relevant systems and functions. Key
Key functions
Locking and unlocking centrally The key centrally locks/unlocks:
R
the doors
R the boot lid
R the fuel filler flap G
Risk of injury
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 requiring 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. They
could be seriously or even fatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuing people from outside the vehicle is diffi-
cult.
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. If the vehicle has been locked with KEYLESS-
GO, the doors can be opened from inside the
vehicle. G
Risk of accident
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. :
& 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.
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 209).
X To unlock centrally: press the%but-
ton. 68
KeyOpening and closing

If you do not open
adoor or the boot lid within
approximately 40 seconds of unlocking the
vehicle:
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 unlock the 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.
The distance from the door handle with which
you wish to lock or unlock the vehicle must
not be greater than 1 m.
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. X
To unlock the vehicle: touch the inner
surface of the door handle.
X To lock the vehicle: touch sensor sur-
face :.
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 setting of the 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 simultaneously
for approximately six seconds until battery
check lamp (Y page 70) flashes twice.
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 door handle on the front-
passenger door or the rear door.
X To lock centrally: touch the outer sensor
surface on one of the door handles. Restoring the factory settings
X Press the %and& buttons simulta-
neously for approximately six seconds until
the battery check lamp flashes twice. Emergency key element
General notes If the vehicle can no longer be locked or
unlocked with the key, use the emergency
key element.
If you use the emergenc
ykey element to
unlock and open the driver's door or the boot Key
69Opening and closing Z

lid, the anti-theft alarm system will be trig-
gered (Y
page 63).
There are several ways to tur noff the alarm:
X To deactivate the alarm with the key:
press the %or& button on the key.
or
X Insert the key into the ignition lock.
or
X To deactivate the alarm with KEYLESS-
GO: press the Start/Stop button in the igni-
tion lock. The key must be in the vehicle.
or
X Lock or unlock the vehicle using KEYLESS-
GO. The key must be outside the vehicle.
If you unlock the vehicle using the emergency
key element, the fuel filler flap will not be
unlocked automatically.
X To unlock the fuel filler flap: insert the
key in the ignition lock.
Removing the emergency key element X
Push release catch :in the direction of
the arrow and at the same time, remove
emergency key element ;from the key. Battery of the key
Important safety notes It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at a
Mercedes-Benz Service Centre. G
Risk of poisoning
Batteries are toxic and contain caustic sub-
stances. For this reason, keep batteries out of
the reach of children.
If a battery has been swallowed, visi tadoctor
immediately. H
Environmental note Batteries contain pollutants.
It is against the law to dis-
pose of them with the house-
hold rubbish. They must be
collected separately and
recycled in an environmen-
tally responsible manner. Dispose of batteries in an
environmentally responsible
manner. Take discharged
batteries to a qualified spe-
cialist workshop, e.g. a
Mercedes-Benz Service
Centre, or to a special col-
lection point for old batter-
ies.
Checking the battery X
Press the &or% button.
The key battery is working properly if the
battery charge indicator lamp :lights up
briefly.
If battery charge indicator lamp :does not
light up briefly during the test, the key battery
is discharged.
X Replace the key battery (Y page 71).70
KeyOpening and closing

i
When checking the key battery within the
signal area of the vehicle, pressing the
& or% button locks or unlocks the
vehicle, respectively.
Changing the battery You require a CR 2025 3 V cell battery.
X Take the emergency key element out of the
key (Y page 69). X
Press emergency key element ;into the
opening in the key in the direction of the
arrow until battery tray cover :opens. Do
not hold the cover closed while doing so. X
Remove the cover of the battery tray.
X Repeatedly tap the key against your palm
until battery =falls out.
X Inser tthe new battery with the positive
pole facing upwards. Use alint-free cloth to
do so.
X Make sure that the surface of the battery is
free fro mlint, grease and all other forms of
contamination. X
Insert the front tabs of the battery tray's
cover first and then press to close it.
X Insert the emergency key elemen tinto the
key.
X Check the functio nofall key buttons on the
vehicle. Key
71Opening and closing Z

Problems with the key
Problem Possible causes/consequences and
M Solutions
You cannot lock or
unlock the vehicle
using the key. The key battery is discharged or nearly discharged.
X
Point the tip of the key at the driver's door handle from a dis-
tance of approximately 50 cm and try to unlock or lock the
vehicle again.
If this does not work:
X Check the key battery and replace it if necessary (Y page 71).
X Lock (Y page 75) or unlock (Y page 75) the vehicle using
the emergency key element. The key is faulty.
X
Lock (Y page 75) or unlock (Y page 75) the vehicle using
the emergency key element.
X Have the key checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS-GO. There is a fault with KEYLESS-GO.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/&button.
X Have KEYLESS-GO checked at a qualified specialist workshop. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/&button. You have lost a key. X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 72
KeyOpening and closing