lock MERCEDES-BENZ C300LUX 4MATIC 2010 W204 Owner's Guide

XInstall a LATCH-type (ISOFIX) child seat
according to the manufacturer’s
instructions.
A rigid connection between the child seat
and the body of the vehicle is established.
XMake sure that the seat belt for the rear
center seat can operate freely with a child
seat installed.
Child safety
Child safety locks
GObserve Safety notes, see page 54.GWarning!
Children could open a rear door from the
inside. This may cause serious personal injury
or an accident. Therefore, secure the rear
doors with the child safety locks whenever
children are riding in the back seats of the
vehicle.
The child safety locks on the rear doors
enable you to secure each rear door
individually. You cannot open a secured rear
door from the inside. You can open the rear
door from the outside when the vehicle is
unlocked.
XSecuring: Press the lever up in direction of
arrow :.
XCheck to make sure the child safety locks
are working properly.
XReleasing: Press the lever down in
direction of arrow ;.
Override switchGObserve Safety notes, see page 54.
With the override switch you can disable the
rear door window switches in the rear door
panels. This can be useful, for instance, when
you have children riding in the rear passenger
compartment.
GWarning!
Activate the override switch when children
are riding in the back seats of the vehicle. The
children may otherwise injure themselves,
e.g. by becoming trapped in the rear door
window opening.
XActivating: Press override switch :.
Indicator lamp ; comes on.
The rear door windows can no longer be
operated using the respective switch
located in the rear doors.
You can still operate the rear door windows
using the switches located on the door
control panel of the driver’s door.
XDeactivating: Press override switch :
again.
The rear door windows can be operated
again using the respective switch located
in the rear doors.
For more information on power windows, see
the “Controls in detail” section
(Y page 98).
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Panic alarmXActivating: Press and hold !
button : for at least 1 second.
An audible alarm and flashing exterior
lamps will operate.
XDeactivating: Press ! button : again.
or
XInsert the SmartKey into the starter switch.
or
XPress the KEYLESS-GO start/stop button.
The SmartKey with KEYLESS-GO must be
inside the vehicle.
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
iCanada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1.This device may not cause interference,
and
2. this device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Driving safety systems
Introduction
This section contains information about the
following driving safety systems:
RABS (Antilock Brake System)
RAdaptive Brake
RBAS (Brake Assist System)
REBP (Electronic Brake Proportioning)
RESP® (Electronic Stability Program)
iIn winter operation, the maximum
effectiveness of most of the driving
systems described in this section is only
achieved with winter tires, or snow chains
as required.
Safety notes
GWarning!
The following factors increase the risk of
accidents:
RExcessive speed, especially in turns
RWet and slippery road surfaces
RFollowing another vehicle too closely
The driving safety systems described in this
section cannot reduce these risks or prevent
the natural laws of physics from acting on the
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vehicle. They cannot increase braking or
steering efficiency beyond that afforded by
the condition of the vehicle brakes and tires
or the traction afforded.
Only a safe, attentive, and skillful driver can
prevent accidents.
The capabilities of a vehicle equipped with the
driving safety systems described in this
section must never be exploited in a reckless
or dangerous manner which could jeopardize
the user’s safety or the safety of others.
Always adjust your driving style to the
prevailing road and weather conditions and
keep a safe distance to other road users and
objects on the street.
If a driving system malfunctions, other driving
safety systems may also switch off. Observe
indicator and warning lamps that may come
on as well as messages in the multifunction
display that may appear.
ABS
GObserve Safety notes, see page 60.GWarning!
Do not pump the brake pedal. Use firm, steady
brake pedal pressure instead. Pumping the
brake pedal defeats the purpose of the ABS
and significantly reduces braking
effectiveness.
The Antilock Brake System (ABS) regulates
the brake pressure so that the wheels do not
lock during braking. This allows you to
maintain the ability to steer your vehicle.
The ABS is functional above a speed of
approximately 5 mph (8 km/h) independent
of road surface conditions.
On slippery road surfaces, the ABS will
respond even to light brake pressure.
The ABS indicator lamp ! in the
instrument cluster comes on when you switch
on the ignition. It goes out when the engine
is running.
Braking
At the instant one of the wheels is about to
lock up, a slight pulsation can be felt in the
brake pedal. The pulsation indicates that the
ABS is in the regulating mode.
XKeep firm and steady pressure on the brake
pedal while you feel the pulsation.
Continuous, steady brake pedal pressure
yields the advantages provided by the ABS,
namely braking power and the ability to steer
the vehicle.
The pulsating brake pedal can be an
indication of hazardous road conditions and
functions as a reminder to take extra care
while driving.
Emergency brake maneuver
XKeep continuous full pressure on the brake
pedal.GWarning!
If the ABS malfunctions, other driving safety
systems such as the BAS or the ESP ®
are also
switched off. Observe indicator and warning
lamps that may come on as well as messages
in the multifunction display that may appear.
If the ABS malfunctions, the wheels may lock
during hard braking, reducing steering
capability and extending the braking distance.
BAS
GObserve Safety notes, see page 60.
The Brake Assist System (BAS) operates in
emergency situations. If you apply the brakes
very quickly, the BAS provides full brake
boost automatically, thereby potentially
reducing the braking distance.
XApply continuous full braking pressure until
the emergency braking situation is over.
The ABS will prevent the wheels from
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When you release the brake pedal, the brakes
function again as normal. The BAS is then
deactivated.GWarning!
If the BAS malfunctions, the brake system still
functions, but without the additional brake
boost available that the BAS would normally
provide in an emergency braking maneuver.
Therefore, the braking distance may increase.
Adaptive Brake
Adaptive Brake provides a high level of
braking safety as well as increased braking
comfort. Adaptive Brake takes driver and
vehicle characteristics into consideration,
thus achieving an optimal braking effect.
In addiditon, Adaptive Brake provides the hill-
start assist system ( Y page 183).
For more information on the brake system,
see ( Y page 255).
EBP
GObserve Safety notes, see page 60.
The Electronic Brake Proportioning (EBP)
enhances braking effectiveness by allowing
the rear brakes to supply a greater proportion
of the braking effort in straight-line braking
without a loss of vehicle stability.
GWarning!
If the EBP malfunctions, the brake system will
still function with full brake boost. However,
the rear wheels could lock up during
emergency braking situations, for example.
You could lose control of the vehicle and
cause an accident.
Adapt your driving style to the changed
driving characteristics.
ESP ®GObserve Safety notes, see page 60.
The Electronic Stability Program (ESP
®
) is
operational as soon as the engine is running.
It monitors the vehicle’s traction (force of
adhesive friction between the tires and the
road surface) and handling.
The ESP ®
recognizes that the vehicle deviates
from the direction of travel as intended by the
driver. By applying brakes to individual
wheels and by limiting the engine output, the
ESP ®
works to stabilize the vehicle. The
ESP ®
is especially useful while driving off and
on wet or slippery road surfaces. The ESP ®
also stabilizes the vehicle during braking and
steering maneuvers.
The ESP ®
warning lamp d in the
instrument cluster comes on when you switch
on the ignition. It goes out when the engine
is running.
The ESP ®
warning lamp d in the
instrument cluster flashes when the ESP ®
is
engaged.
GWarning!
Never switch off the ESP ®
when you see the
ESP ®
warning lamp d flashing in the
instrument cluster. In this case proceed as
follows:
R When driving off, apply as little throttle as
possible.
R While driving, ease up on the accelerator
pedal.
R Adapt your speed and driving style to the
prevailing road conditions.
Failure to observe these guidelines could
cause the vehicle to skid. The ESP ®
cannot
prevent accidents resulting from excessive
speed.
i Vehicle status messages in the
multifunction display ( Y page 270) will
refer to the ESP ®
as ESC.
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GWarning!
Switch on the ESP® immediately if the
aforementioned circumstances do not apply
anymore. Otherwise the ESP® will not
stabilize the vehicle when it is starting to skid
or a wheel is spinning.
When you switch off the ESP®,
Rthe ESP® will not stabilize the vehicle
Rthe engine output is not limited, which
allows the drive wheels to spin and thus cut
into surfaces for better grip
Rthe ETS will still apply the brakes to a
spinning wheel
Rthe ESP® continues to operate when you
are braking hard
Rthe cruise control cannot be activated
Rthe cruise control switches off if activated
iWhen the ESP® is switched off and one or
more drive wheels are spinning, the ESP®
warning lamp d in the instrument
cluster does not flash. The ESP® will then
not stabilize the vehicle.
XSwitching off: With the engine running,
press ESP® SPORT switch : until the
ESP® warning lamp d and the ESP OFF
warning lamp åin the instrument
cluster come on.
The message ESC-OFF appears in the
multifunction display.
iVehicle status messages in the
multifunction display (Y page 270) will
refer to the ESP® as ESC.
GWarning!
When the ESP® warning lamp d and the
ESP® OFF warning lamp å are illuminated
continuously, the ESP® is switched off.
Vehicle stability in standard driving
maneuvers is reduced.
Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP®.
! Avoid spinning of a drive wheel for an
extended period with the ESP® switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
XSwitching on: With the engine running,
press ESP® SPORT switch : briefly.
The ESP® warning lamp d and the
ESP® OFF warning lamp å in the
instrument cluster go out. The message
ESC-ON appears in the multifunction
display.
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
Activating
XWith SmartKey: Remove the SmartKey
from the starter switch.
XWith KEYLESS-GO: Turn off the engine and
open the driver’s door.
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DeactivatingXSwitch on the ignition.
iStarting the engine will also deactivate
the immobilizer.
In the event that the engine cannot be
started (yet the vehicle’s battery is
charged), the system is not operational.
Contact an authorized Mercedes-Benz
Center or call 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
Ra door
Rthe trunk
Rthe hood
The alarm will stay on even if the activating
element, a door, for example, is closed
immediately.
The alarm system will also be triggered when
Rthe vehicle is opened with the mechanical
key
Ra door is opened from the inside
Rthe trunk is opened with the emergency
release button
To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(Y page 68).
iIf the alarm stays on for more than
30 seconds, the Tele Aid system initiates a
call to the Customer Assistance Center
automatically. The Tele Aid system will
initiate the call provided that
Ryou have subscribed to the Tele Aid
service
Rthe Tele Aid service has been activated
properly
Rthe necessary mobile phone, power
supply and GPS coverage are available
XArming: Lock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash three times and
an acoustic warning sounds three times to
indicate that the vehicle is locked. Indicator
lamp : flashes to indicate that the alarm
system is armed.
iIf the turn signal lamps do not flash three
times and the acoustic warning does not
sound three times, a door or the trunk may
not be properly closed.
Close the respective element.
XDisarming: Unlock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash once and an
acoustic warning sounds once to indicate
that the alarm system is disarmed.
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iUnless you open a door or the trunk within
approximately 40 seconds after unlocking
the vehicle:
R The vehicle will be locked again.
R The anti-theft alarm system will be
rearmed.
Canceling the alarm
To cancel the alarm, do one of the following:
XInsert the SmartKey into the starter switch.XPress button % or & on the
SmartKey.
In vehicles with KEYLESS-GO:
XGrasp an outside door handle.
The SmartKey must be within 3 ft (1 m) of
the vehicle.XPress the KEYLESS-GO start/stop button.
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Vehicle equipment ..............................70
Locking and unlocking .......................70
Starter switch positions .....................77
Seats ....................................................79
Multifunction steering wheel .............84
Mirrors .................................................86
Memory function .................................89
Lighting ................................................90
Wipers ..................................................96
Power windows ...................................98
Driving and parking ..........................101
Manual transmission ........................107
Automatic transmission ...................108
Transfer case ....................................116
Instrument cluster ............................116
Control system ..................................118
Audio system ....................................136
Driving systems ................................180
Climate control system ....................189
Rear window defroster .....................196
Power tilt/sliding sunroof ...............196
Panorama roof with power tilt/
sliding panel ......................................199
Loading and storing ..........................202
Useful features .................................207
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Vehicle equipment
iThis Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual.
Locking and unlocking
Notes
GObserve Safety notes, see page 54.
When unlocking or locking the vehicle with
the SmartKey an acoustic signal sounds. The
acoustic signal is activated at the factory. If
you wish to deactivate the feature, or adjust
its signal volume, contact an authorized
Mercedes-Benz Center.
When unlocking the vehicle, all turn signal
lamps flash once. An acoustic signal sounds
once, and the locking knobs in the doors
move up. The anti-theft alarm system is
disarmed.
When locking the vehicle, all turn signal lamps
flash three times. An acoustic signal sounds
three times, and the locking knobs in the
doors move down. The anti-theft alarm
system is armed.
All doors and the trunk must be closed.
If you cannot lock or unlock the vehicle with
the SmartKey, the batteries in the SmartKey
are discharged, the SmartKey is
malfunctioning, or the vehicle battery is
drained.
XCheck the batteries in the SmartKey
(Y page 73) and replace them if
necessary.
XUse the mechanical key to unlock the
driver’s door and the trunk (Y page 309).
XUse the mechanical key to lock the vehicle
(Y page 310).
XHave the vehicle battery and the vehicle
battery connections checked at an
authorized Mercedes-Benz Center.
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and a
removable mechanical key.
The SmartKey centrally locks and unlocks
Rthe doors
Rthe trunk lid
Rthe fuel filler flap
: &Lock button; FUnlock button for trunk lid= %Unlock button
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation.
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Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
i Canada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1. This device may not cause interference,
and
2. this device must accept any interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Factory setting XGlobal unlocking: Press button %.
Unless you open a door or the trunk within
approximately 40 seconds after unlocking
the vehicle:
R The vehicle will be locked again.
R The anti-theft alarm system will be
rearmed.
XGlobal locking: Press button &.
Selective setting
If you frequently travel alone, you may wish
to reprogramm the SmartKey. Pressing
button % will then only unlock the driver’s
door and the fuel filler flap.
XSwitching on/off: Press and hold buttons
% and & simultaneously for
approximately 6 seconds until the battery
check lamp ( Y page 73) flashes twice.
The SmartKey will then function as follows:
XUnlocking driver’s door and fuel filler
flap: Press button % once.XGlobal unlocking: Press button %
twice.XGlobal locking: Press button &.
KEYLESS-GO
Vehicles equipped with KEYLESS-GO come
with two SmartKeys with KEYLESS-GO, each
with remote control and a removable
mechanical key.
The KEYLESS-GO function is integrated into
the SmartKey. The validity of the SmartKey is
checked every time you grasp an outside door
handle.
When the SmartKey is valid, your vehicle
unlocks
R the doors
R the trunk lid
R the fuel filler flap
i USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
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