MERCEDES-BENZ GL 2014 Owners Manual

Switching the ZONE function on/off
XTo switch on:press the

MAX COOL is only operational when the
engine is running.
XTo activate:press the

Problems with the rear window defroster
ProblemPossible causes/consequences andPPSolutions
The rear window
defroster has
deactivated
prematurely or cannot
be activated.
The battery has not been sufficiently charged.
XSwitch off any consumers that are not required, e.g. reading
lamps, interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window
defroster can be activated again.
Activating/deactivating air-
recirculation mode
General notes
You can deactivate the flow of fresh air if
unpleasant odors are entering the vehicle
from outside. The air already inside the
vehicle will then be recirculated.
If you switch on air-recirculation mode, the
windows can fog up more quickly, in
particular at low temperatures. Only use air-
recirculation mode briefly to prevent the
windows from fogging up.
Activating/deactivating
The operation of air-recirculation mode is the
same for all control panels.
XTurn the SmartKey to position2in the
ignition lock (Ypage 167).
XTo activate:press the

the engine has been switched off. The heating
time depends on the set interior temperature.
Switching on/off
XTo activate:press theK/Vbutton.
The indicator lamp in theK/V
button lights up.
iThe blower will run at a low speed
regardless of the airflow setting.
iIf you activate the residual heat function
at high temperatures, only the ventilation
will be activated. The blower runs at
medium speed.
XTo deactivate:press theK/V
button.
The indicator lamp in theK/V
button goes out.
Residual heat is deactivated automatically:
Rafter approximately 30 minutes
Rwhen the ignition is switched on
Rif the battery voltage drops
Setting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air
outlets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet grille on the hood and in
the engine compartment on the front-
passenger side free of blockages, such as
ice, snow or leaves.
Rnever cover the air vents or air intake grilles
in the vehicle interior.
iFor virtually draft-free ventilation, adjust
the sliders of the air vents to the center
position.
Setting the center air vents
CCenter air vent, left
DCenter air vent, right

Setting the side air vents
CSide window defroster vent
DSide air vent

XTo open/close:turn thumbwheelDto the
left or right.
B-pillar air vent in the headliner
CRear air vent
DThumbwheel for rear air vent
XTo open/close:turn thumbwheelDup or
down.
Third row of seats
B-pillar air vent in the headliner
CRear air vent
DThumbwheel for rear air vent
XTo open/close:turn thumbwheelDup or
down.
164Setting the air vents
Climate control

Useful information............................166
Notes on breaking-in a new vehicle 166
Driving...............................................166
Automatic transmission...................173
Refueling............................................182
Parking...............................................188
Driving tips........................................191
Driving systems................................201
Towing a trailer.................................263
165
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 note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 28).
Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and
driving safety systems adjusts automatically
while a certain distance is being driven after
the vehicle has been delivered or after
repairs. Full system effectiveness is not
reached until the end of this teach-in
procedure.
New and replaced brake pads and discs only
reach their optimum braking effect after
several hundred kilometers of driving.
Compensate for this by applying greater force
to the brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
RYou should therefore drive at varying
vehicle and engine speeds for the first
1000 miles (1500 km).
RAvoid heavy loads, e.g. driving at full
throttle, during this period.
RChange gear in good time, before the
tachometer needle is

GWARNING
Unsuitable footwear can hinder correct usage
of the pedals, e.g.:
Rshoes with thick soles
Rshoes with high heels
Rslippers
There is a risk 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 is a risk
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 cause a fire
Rlose its hold function.
There is a risk 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 away on slippery
roads. You could otherwise damage the
drive train.
!AMG vehicles:at low engine oil
temperatures below 68 ‡ (+20 †), the
maximum engine speed is restricted in
order to protect the engine. To protect the
engine and maintain smooth engine
operation, avoid driving at full throttle when
the engine is cold.
SmartKey positions
SmartKey
ZTo remove the SmartKey
GPower supply for some consumers, such
as the windshield wipers
HIgnition (power supply for all consumers)
and drive position
ITo 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 keep the KEYLESS-GO key:
-with electronic devices, e.g. a mobile
phone or another SmartKey
-with metallic objects, e.g. coins or metal
foil
-inside metallic objects, e.g. a metal case
This can impair the functionality of the
KEYLESS-GO key.
Do not keep the KEYLESS-GO key in the
temperature-controlled cup holder
(Ypage 349). Otherwise, the KEYLESS-GO
key will not be recognized.
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS-
Driving167
Driving and parking
Z

GO function and a detachable Start/Stop
button.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey with the
integrated KEYLESS-GO function 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,
always take 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.
iThe engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for approximately
three seconds.
Key positions with KEYLESS-GO
If Start/Stop buttonChas not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
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 326).
XInsert Start/Stop buttonCinto ignition
lockD.
iWhen you insert Start/Stop buttonC
into ignition lockD, the system needs
approximately two seconds recognition
time. You can then use Start/Stop
buttonC.
XTo switch on the power supply:press
Start/Stop buttonConce.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
iThe power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop buttonCtwice
when in this position.
XTo switch on the ignition:press Start/
Stop buttonCtwice.
The ignition is switched on.
iThe power supply is switched off again if:
Rthe driver's door is opened and
Ryou press Start/Stop buttonConce
when in this position.
168Driving
Driving and pa rking