2014 MERCEDES-BENZ CLS Owners Manual

dehumidification" function.Otherwise,
temperature-sensitive items stored in the
glove boxcould be damaged.
Air vent thumbwheel
Air vent
When automatic climate control is activated,
the glove box can be ventilated, for instance
to cool its contents.The level of airflow
depends on the airflow and air distribution
settings.
XTo open/close:turn thumbwheel
clockwise or counter-clockwise.
Setting the rear-compartment air
vents
Setting the center vents in the rear
compartment
Rear-compartment air vent thumbwheel
Rear-compartment air vent,right
$Rear control panel, only for Canada with
3-zone automatic climate control
!Rear-compartment air vent,left
XTo open/close:turn thumbwheelup or
down.
Setting the air vents143
Climat ec ontrol
Z

144

Useful information............................146
Notes on breaking-inanew vehicle 146
Driving...............................................146
Automatic transmission...................155
Refueling............................................164
Parking...............................................167
Driving tips........................................169
Driving systems................................175
145
Driving and parking

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please notethat your vehicle may
not be equipped with all features
described. This also applies to safety-
related systemsand functions.
iRead the information on qualified
specialist workshops: (Ypage 26).
Notes on breaking-inanew vehicle
Important safety notes
New and replaced brakepads and discsonly
reachtheir optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applyinggreater force
to thebrakepedal.
Thefirst 1000miles (1500 km)
The moreyou look after theengine when it is
new, themoresatisfied you will be with its
performanceinthefuture.
RYou should therefore driveatvarying
vehicle and engine speedsfor thefirst
1000 miles (1500 km).
RAvoid heavy loads, e.g.driving at full
throttle, during this period.
RChange gearingood time, before the
tachometer needle isof the way to the
red area of the tachometer.
RDo not manually shift toalower gear to
brake the vehicle.
RIf possible, do not depress the accelerator
pedal past the point of resistance
(kickdown).
ROnly select shift ranges3,2or1when
driving slowly, e.g. in mountainous terrain.
After 1000 miles (1500 km), you can increase
the engine speed graduallyand accelerate
the vehicle to full speed.
Additional breaking-in notes for AMG
vehicles:
RDo not drive faster than 85 mph
(140 km/h) for the first 1000 miles
(1500 km).
ROnly allow the engine to reachamaximum
engine speed of 4500 rpm briefly.
RChange gear in good time.
iYou should also observe these notes on
breaking in if the engine or parts of the drive
train on your vehicle have been replaced.
iAlways observe the respective speed
limits.
AMG vehicles with self-locking rear
axle differential
Your vehicle is equipped withaself-locking
differential on the rear axle. To protectthe
differential on the rear axle, carry out an oil
change afterabreaking-in phase of
2000miles (3000 km). This oil change
prolongs the servicelife of the differential.
Have the oil change carried out ataqualified
specialist workshop.
Driving
Important safetynotes
GWARNING
Objects in the driver's footwell can restrict the
pedal travel or obstructadepressed pedal.
The operatingand road safety of the vehicle
is jeopardized. There isarisk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficientclearancefor the pedals. Do not use
loose floormats.
146Driving
Driving and parking

GWARNING
Unsuitable footwearcan hinder correctusage
of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There isarisk of an accident.
Wear suitable footwear to ensure correct
usage of the pedals.
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There isarisk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If the parking brake has not been fully
released when driving, the parking brake can:
Roverheat and causeafire
Rlose its hold function.
There isarisk of fire and an accident. Release
the parking brake fully before driving off.
!Warm up the engine quickly. Do not use
the engine's full performance until it has
reached operating temperature.
Only shift the automatic transmission to
the desired drive position when the vehicle
is stationary.
Where possible,avoid spinning the drive
wheels when pulling awayonslippery
roads. You could otherwise damage the
drive train.
!AMG vehicles:at low engine oil
temperatures below 68‡(+20 †), the
maximumengine speed is restrictedin
order to protect the engine.Toprotectthe
engine and maintain smooth engine
operation, avoid driving at full throttle when
the engine is cold.
Key positions
SmartKey
To remove the SmartKey
(shift the transmission to positionP)

Power supply for some consumers, such
as the windshield wipers
Ignition (power supply for all consumers)
and drive position
To start the engine
iThe SmartKey can be turned in the
ignition lock even if it is not the correct
SmartKey for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO
General notes
RDo not store the KEYLESS-GO key together
with:
-electronic devices, e.g.amobile phone
or another SmartKey
-metallic objects, e.g. coins or metal film
RDo not keep the KEYLESS-GO key in metal
objects, e.g. metal cases.
This can affect the functionality of
KEYLESS-GO.
Vehicles with KEYLESS-GO are equipped with
keys featuring the integrated KEYLESS-GO
function andadetachable Start/Stop button.
Driving147
Driving and parking
Z

The Start/Stop button must be inserted in the
ignition lock and the SmartKey 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.
If you depress the brake pedal and press the
Start/Stop button,the engine starts
immediately.
The Start/Stop button can be removed from
the ignition lock. Then, you can insert the
SmartKey into the ignition lock.
iYou do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. You should, however,
alwaystake the SmartKey with you when
leaving the vehicle. As long as the
SmartKey is in the vehicle:
Rthe vehicle can be started using the
Start/Stop button and
Relectrically powered equipment can be
operated.
Key positions with KEYLESS-GO
As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (Ypage 266).
XInsert Start/Stop buttoninto ignition
lock.
iWhen you insert Start/Stop button
into ignition lock,the system needs
approximately two seconds recognition
time. You can then use Start/Stop
button.
Activating power supply
XPosition0:ifStart/Stop buttonhas not
yet been pressed, this corresponds to the
SmartKey being removed from the ignition.
XPosition1:press Start/Stop button.
The power supply is switched on. You can
now activatethe windshield wipers, for
example.
iIf you then open the driver's door when in
this position, the power supply is
deactivated.
Switching on the ignition
XPosition2(ignition): press Start/Stop
buttontwice.
The ignition is switched on.
iThe ignition is switched off when:
Rthe driver's door is opened and
Ryou press Start/Stop buttononce
when in this position.
Start/Stop button
$USA only
!Canada only
148Driving
Driving and parking

Starting the engine
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshift the automatic transmission out of
parking position P.
Rstartingthe engine.
There isarisk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
isarisk of fatal injury. Therefore never leave
the engine running in enclosed spaces
without sufficient ventilation.
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There isarisk
of fire.
Carry out regular checkstomake sure that
there are no flammable foreign materials in
the engine compartmentorinthe exhaust
system.
!Do not depress the accelerator pedal
when startingthe engine.
General notes
iThe catalytic converter is preheated for
up to 30 seconds afteracold start. The
sound of the engine may change during this
time.
Automatic transmission
XShift the transmission to positionP.
The transmission position display in the
multifunction display showsP.
iYou can also start the engine when the
transmission is in positionN.
Starting procedurewith the SmartKey
iTo start the engine using the SmartKey
instead of KEYLESS-GO, pull the Start/
Stop button out of the ignition lock.
XTurn the SmartKey to position3in the
ignition lock (Ypage 147) and release it as
soon as the engine is running.
Using KEYLESS-GO to startthe engine
iThe Start/Stop button can be usedto
start the vehicle manually without inserting
the SmartKey into the ignition lock. The
Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in
the vehicle. This mode for starting the
engine operates independently of the ECO
start/stop automatic engine start function.
XDepress the brake pedal and keep it
depressed.
XPress the Start/Stop button once
(Ypage147).
The engine starts.
Driving149
Driving and parking
Z

Pulling away
Automatic transmission
GWARNING
If the engine speed is above the idling speed
and you engage transmission positionDor
R,the vehicle could pull away suddenly. There
isarisk of an accident.
When engaging transmission positionDorR,
always firmly depress the brake pedal and do
not simultaneously accelerate.
!Ifawarning tone sounds and the
Release Park. Brakemessage appears
in the multifunction display,the parking
brake is still applied. Release the parking
brake.
XDepress the brake pedal and keep it
depressed.
XShift the transmission to positionDorR.
XRelease the parking brake (Ypage 169).
XRelease the brake pedal.
XCarefullydepress the accelerator pedal.
iIt is only possible to shift the transmission
from positionPto the desired position if
you depress the brake pedal. Only then is
the parking lock released. If you do not
depress the brake pedal, you can move the
DIRECT SELECT lever but the parking lock
remains engaged.
iThe vehicle locks centrally once you have
pulledaway.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
locking feature (Ypage 232).
iUpshifts take place at higher engine
speeds afteracold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Hill startassist
GWARNING
Afterashort time, hill start assist will no
longer brake your vehicle and it could roll
away. There isarisk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist helps you when pulling away
forwards or in reverse on an uphill gradient.
It holds the vehicle forashort time after you
have removed your foot from the brake pedal.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and to depress it before the vehicle begins to
roll.
XTake your foot off the brake pedal.
The vehicle is then held for aboutasecond.
XPull away.
Hill start assist will not function if:
Ryou are pulling away onalevel road or on
adownhill gradient.
Rthe transmission is in positionN.
Rthe parking brake is applied.
RESP®is malfunctioning.
ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is
stopped under certain conditions.
The engine startsautomatically when the
driver wants to pull away again. The ECO
start/stop function thereby helps you to
reduce the fuel consumption and emissions
of your vehicle.
150Driving
Driving and parking