2014 MERCEDES-BENZ CL-Class warning lights

X
To deactivate: press the¬rocker
switch up or down.
The indicator lamp in the ¬rocker
switch goes out. The previously selected
settings come into effect again. The cooling
with ai rdehumidification function remains
on. Air-recirculation mode remains
deactivated.
or
X Press the wrocker switch up or down.
or
X Press the Krocker switch up or down. MAX COOL maximum cooling
The MAX COOL function is only available in
vehicles for the USA.
MAX COOL is only operational when the
engine is running.
The MAX COOL function is activated
automatically:
R if climate control is set to automatic
(Ã) on both sides
R if additional cooling is used
The display shows MAX COOL .
This is the quickest way to cool the vehicle
interior when the sliding sunroof and the side
windows are closed. Defrosting the windows
Windows fogged up on the inside X
Activate the cooling with air
dehumidification function via COMAND
(Y page 241).
X Activate automatic mode Ã.
X If the windows continue to fog up, activate
the defrosting function (Y page 265).
i You should only select this setting until
the windshield is clear again. Windows fogged up on the outside X
Switch on the windshield wipers.
X Activate automatic climate control.
i You should only select this setting until
the windshield is clear again. Rear window defroster
Activating/deactivating G
WARNING
Any accumulation of snow and ice should be
removed from the rear window before driving.
Visibility could otherwise be impaired,
endangering you and others.
The rear window defroster has a high current
draw. You should therefore switch it off as
soon as the window is clear. Otherwise, the
rear window defroster switches off
automatically after several minutes.
If the battery voltage is too low, the rear
window defroster may switch off.
X Turn the SmartKey to position 2in the
ignition lock.
X Press the ¤rocker switch up or down.
The indicator lamp in the ¤rocker
switch lights up or goes out.
Problems with the rear window
defroster The rear window defroster has deactivated
prematurely or cannot be activated.
X
Switch off any consumers that are not
required, e.g. reading lamps or interior
lighting.
When the battery is sufficiently charged,
the rear window defroster is activated
again automatically. 266
Operating the climate control systemsClimate control

Activating/deactivating air-
recirculation mode
You can deactivate the flo woffresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated. G
WARNING
Fogged windows impair visibility,
endangering you and others. If the windows
begi nto fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press the ¬
button.
X Turn the SmartKey to position 2in the
ignition lock.
X To activate: press thegrocker switch
up or down.
The indicator lamp in the grocker
switch lights up.
i Air-recirculation mode is activated
automatically at high outside
temperatures. The indicator lamp in the
g rocker switch is not lit when
automatic air-recirculation mode is
activated.
Outside air is added after about
30 minutes.
X To deactivate: press thegrocker
switch up or down.
The indicator lamp in the grocker
switch goes out. i
Air-recirculation mode deactivates
automatically:
R after approximately five minutes at
outside temperatures below
approximately 41 ‡ (5 †)
R after approximately five minutes if
cooling with air dehumidification is
deactivated
R after approximately 30 minutes at
outside temperatures above
approximately 41 ‡ (5 †) Activating/deactivating the residual
heat function
It is possible to make use of the residual heat
of the engine to continue heating the
stationary vehicle for up to 30 minutes after
the engine has been switched off. The heating
time depends on the temperature that has
been set.
i The blower will run at a low speed
regardless of the airflow setting.
i If you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
X Turn the SmartKey to position 0in the
ignition lock or remove it.
X To activate: press theÌrocker switch
up or down.
The indicator lamp in the Ìrocker
switch lights up.
X To deactivate: press theÌrocker
switch up or down.
The indicator lamp in the Ìrocker
switch goes out.
i Residual heat is deactivated
automatically:
R after about 30 minutes
R when the ignition is switched on
R if the battery voltage drops
R if the coolant temperature is too low Operating the climate control systems
267Climate control Z

X
Insert Start/Stop button :into ignition
lock ;.
i When you insert Start/Stop button :
into ignition lock ;, the system requires a
detection time of approximately
two seconds before you can use Start/
Stop button :. Start/Stop button
=
USA only
? Canada only
X Position 0: if Start/Stop button :has not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
X Position 1: press Start/Stop button :.
You can now activate the windshield
wipers, for example.
i If you then open the driver's door when in
this position, the powers upply is
deactivated.
X Position 2(ignition): press Start/Stop
button :twice.
i If you press Start/Stop button :once
when in this position and the driver's door
is open, the power supply is deactivated
again.
As soo nas the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
the engine is started or if it lights up while the
vehicle is in motion, see (Y page 390). Starting the engine
Important safety notes G
WARNING
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon
monoxide (CO), and inhaling it can cause
unconsciousness and possible death.
Do not run the engine in confined areas (such
as a garage) which are not properly ventilated.
If you think that exhaust gas fumes are
entering the vehicle while driving, have the
cause determined and corrected
immediately.Ify ou must drive under these
conditions, drive only with at least one
window fully open at all times.
! Do not depress the accelerator pedal
when starting the engine.
General notes i
The catalytic converter is preheated for
up to 30 seconds after a cold start. The
sound of the engine may change during this
time.
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 SmartKey i
To start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
X Turn the SmartKey to position 3in the
ignition lock (Y page 273) and release it as
soon as the engine is running. 274
DrivingDriving and parking

G
WARNING
Keep in mind that turning off the engine alone
only will shift the automatic transmission into
neutral position Nautomatically.
Always shift the automatic transmission into
park position Pbefore turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
i If you cannot turn off the engine as
described here, see "Engine emergency
stop" (Y page 451).
Vehicles with automatic transmission X
Apply the electric parking brake.
X Shift the transmission to position P.
Using the SmartKey
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
i If you turn off the engine with the
SmartKey and then remove it from the
ignition lock or open a front door, the
automatic transmission shifts to P
automatically.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 273).
The engine stops and all the indicator
lamps in the instrument cluster go out.
i When the driver's door is closed, this
corresponds to SmartKey position 1.When
the driver's door is open, it corresponds to
SmartKey position 0or "SmartKey
removed".
i If you use the Start/Stop button to switch
off the engine, the automatic transmission
shifts to Nautomatically .Ifyou then open
the driver's or front-passenger door, the
automatic transmission shifts to P.
i In an emergency, the engine can be
turned off while the vehicle is in motion by pressing and holding the Start/Stop button
for
3seconds. This function operates
independently from the ECO start/stop
automatic engine switch-off function. Electric parking brake
General notes G
WARNING
When leaving the vehicle, always remove the
SmartKey from the starter switch ,take it with
you, and loc kthe vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Children could
release the parking brake and/or shift the
automatic transmission out of park position
P, either of which could result in an accident
and/or serious personal injury. Applying/releasing manually
X
To engage: push handle :.
When the electric parking brake is
engaged, the F(USA only) or !
(Canada only) red indicator lamp lights up
in the instrument cluster.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: switch on the ignition.
X Pull handle :.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument
cluster goes out. 290
ParkingDriving and parking

i
The electric parking brake can only be
released:
R if the SmartKey is in position 1in the
ignition lock or
R if the ignition was switched on using the
Start/Stop button.
Engaging the electric parking brake
automatically If the HOLD function or DISTRONIC PLUS
brake the vehicle until it is stationary, the
electric parking brake is automatically
applied. Additionally, at least one of the
following conditions must be fulfilled:
R the engine is switched off.
R the driver's door is open and the seat belt
is not fastened.
R the hood is released.
R the trunk lid is opened while the automatic
transmission is in position R.
R the vehicle is stationary for a lengthy
period.
The red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster
lights up.
i In addition to the electric parking brake,
P may also be engaged automatically.
Releasing the electric parking brake
automatically The electric parking brake is released
automatically when the following conditions
are simultaneously fulfilled:
R the engine is running.
R the automatic transmission is in position
D or R.
R the hood is closed.
R your seat belt is fastened.
R you accelerate.
If the automatic transmission is in position
R, the trunk lid must be closed. If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of Por you have
previously driven faster than 3 km/h.
R you have shifted out of Por you have
previously driven faster than 2mph
(3 km/h).
Emergency braking The vehicle can also be braked during an
emergency by using the electric parking
brake.
X
While driving, push handle :of the electric
parking brake (Y page 290).
i The vehicle is braked as long as you keep
the handle of the electric parking brake
pressed. The longer the electric parking
brake handle is depressed, the greater the
braking force.
During braking:
R a warning tone sounds.
R the Please Release Parking Brake message appears
R the red F(USA only) or !(Canada
only) indicator lamp in the instrument
cluster appears.
When the vehicle has been braked to a
standstill, the electric parking brake is
engaged. Parking the vehicle for
along period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
X Connecting a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist
workshop. Parking
291Driving and parking Z

more firmly. Maintain a safe distance from
vehicles in front.
After driving on a wet road or having the
vehicle washed, brake firmly while paying
attention to the traffic conditions. This will
warm up the brake discs, thereby drying them
more quickly and protecting them against
corrosion.
Limited braking performance on salt-
treated roads G
WARNING
The layer of saltont he brake discs and the
brake pads/linings may cause a delay in the
braking effect, resulting in a significantly
longer braking distance, which could lead to
an accident.
To avoid this danger, you should:
R occasionally brake carefully, without
putting other road users at risk, when you
are driving on salted roads. This helps to
remove any salt that may have started to
build up on the brake discs and the brake
pads/linings.
R maintain a greater distance to the vehicle
ahead and drive with particular care.
R carefully apply the brakes at the end of a
trip and immediately after commencing a
new trip, so that salt residues are removed
from the brake discs.
Servicing the brakes !
If the red brake warning lamp lights up in
the instrumentc luster and you hear a
warning tone while the engine is running,
the brake fluid level may be too low.
Observe additional warning messages in
the multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked
immediately. This work should be carried
out at a qualified specialist workshop. All checks and maintenance work on the
brake system must be carried out at a
qualified specialist workshop. Consult a
qualified specialist workshop to arrange this.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop. G
WARNING
If brake pads or brake fluid other than those
recommended are used, the braking
properties of the vehicle can be degraded to
an extent that safe braking is substantially
impaired. This could result in an accident.
! Vehicles with 4MATIC: function or
performance tests may only be carried out
on a 2-axle dynamometer. If you are
planning to have the vehicle tested on such
a dynamometer, contact an authorized
Mercedes-Benz Center to obtain further
information first. Otherwise, you could
damage the drive train or the brake system.
! Vehicles with 4MATIC: as the ESP®
system operates automatically, the engine
and the ignition must be switched off
(SmartKey in position 0or 1in the ignition
lock or Start/Stop button in position 0or
1) when the electric parking brake is being
tested on a brake dynamometer.
Braking maneuvers triggere dautomatically
by ESP ®
may seriously damage the brake
system.
! Vehicles with 4MATIC: as the ESP®
system operates automatically, the engine
and the ignition system must be switched
off (SmartKey in position 0or 1in the
ignition lock or Start/Stop button in
position 0or 1) when:
R testing the electric parking brake on a
brake dynamometer.
R you intend to have the vehicle towed with
one of the axles raised.
Braking maneuvers triggered automatically
by ESP ®
may seriously damage the brake
system. 294
Driving tipsDriving and pa
rking

traffi
cbecause conditions do not allow safe
driving at a constant speed.
R The use of the cruise control can be
dangerous on slippery roads. Rapid
changes in tire traction can result in wheel
spin and loss of control.
R Deactivate the cruise control when driving
in fog.
The "Resume" function should only be
operated if the driver is fully aware of the
previously set speed and wishes to resume
this particular preset speed.
Cruise control lever :
To activate or increase speed
; To activate or reduce speed
= To deactivate cruise control
? To activate at the curren tspeed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds. Atriangle is also show nin
the speedometer. The speedomete rdial
lights up between the set speed and the
maximum speed.
Storing and maintaining th ecurrent
speed You can store the current speed if you are
driving faster than 20 mph (30 km/h). X
Accelerate the vehicle to the desired
speed.
X Briefly press the cruise control lever
up : or down ;.
X Remove you rfoot from the accelerator
pedal.
Cruise control is activated. The vehicle
automatically maintains the stored speed.
i Cruise control may be unable to maintain
the stored speed on uphill gradients. The
stored speed is resumed when the gradient
evens out. Cruise control maintains the
stored speed on downhill gradients by
automatically applying the brakes.
Storing the current speed or calling up
the last stored speed G
WARNING
The set speed stored in memory should only
be set again if prevailing road conditions and
legal speed limits permit. Possible
acceleration or deceleration differences
arising from returning to the preset speed
could cause an accident and/or serious injury
to you and others.
X Briefly pull the cruise control lever towards
you ?.
X Remove your foot from the accelerator
pedal.
The first time cruise control is activated, it
stores the current speed or regulates the
speed of the vehicle to the previously
stored speed.
Setting aspeed G
WARNING
Keep in mind tha titmay take a brie fmoment
until the vehicle has made the necessary
adjustments.
Increase or decrease the set vehicle speed to
a value that the prevailing road conditions and
legal speed limits permit. Otherwise, sudden
and unexpected acceleration or deceleration Driving systems
297Driving and parking
Z

AIRMATIC
Vehicle level Important safety notes
Your vehicle regulates its height
automatically. All-round level control ensures
the best possible suspension and constant
ground clearance, eve nwith a laden vehicle.
When you drive fast, the vehicle is lowered
automatically to improve driving safety and to
reduce fuel consumption.
The following vehicle levels are possible:
R Normal
R raised: the vehicle is raised by about
1.20 in (30 mm) when compared with the
normal level
R lowered: the vehicle is lowered by about
0.40 in (10 mm) when compared with the
normal level
The "Normal" and "Raised" vehicle levels can
be set manually.
The "Lowered" vehicle level is set
automatically at speeds over 60 mph
(100 km/h).
Setting the vehicle level
Select the "Normal" setting for normal road
surfaces and "Raised" for driving with snow
chains or on particularly poor road surfaces.
Your selection remains stored even if you
remove the SmartKey from the ignition lock. G
WARNING
To help avoid personal injury, keep hands and
feet away fro mwheel housing area, and stay
away from under the vehicle when lowering
the vehicle chassis. Setting raised level
X
Start the engine.
If indicator lamp ;is not lit:
X Press button :.
Indicator lamp ;lights up. The vehicle
height is adjusted to raised level.
The Vehicle Rising message appears in
the display.
The "Raised level" setting is canceled if you:
R drive at speeds above 75 mph (120 km/h)
R drive for about three minutes at speeds
above 50 mph (80 km/h).
The "Raised level" remains active whe nyou
are not driving within these speed ranges.
Setting the normal level
X Start the engine.
If indicator lamp ;is lit:
X Press button :.
Indicator lamp ;goes out. The vehicle is
adjusted to normal level.
Suspension tuning General notes
The Adaptive Damping System (ADS)
automatically controls the calibration of the
dampers and springs. Driving systems
309Driving and parking Z