key MERCEDES-BENZ GL 2016 Service Manual

Adjusting the steering wheel elect ri -
cally
C
To adjust th e steering whee l heightD
To adjust th e steering whee l position
(fore-and-af t adjustment)
The steering whee l can also be adjusted when
th e SmartKey is remove d from th e ignition
lock.
i Further relate d subjects :R
EASY-ENTRY/EXIT feature
( Y
page 123) R
Storing setting s ( Y
page 127)
Steering wheel heating
Switching on/off
X
Turn th e SmartKey to position 2 in th e igni-
tion loc k ( Y
page 165).X
To switch on/of f: tur n th e lever in th e
direction of arrow C or D .
Indicato r lamp

Problems with the steering wheel heating Problem
Possible causes/consequences and P Solutions
The steering wheel
heating has switched
off prematurely or can-
not be switched on. The on-board voltage is too low because too many electrical con-
sumers are switched on. X
Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
EASY-ENTRY/EXIT feature
Important safety notes
G WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
occupants – particularly children – could
become trapped. There is a risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the steering
wheel.
Move the steering wheel adjustment lever if
there is a risk of entrapment by the steering
wheel. The adjustment process is stopped.
Press one of the memory function position
buttons. This function is only available on
vehicles with memory function.
G WARNING
If children activate the EASY-ENTRY/EXIT fea-
ture, they can become trapped, particularly
when unattended. There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose
control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off. The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature in the on-board com-
puter ( Y
page 285).
Position of the steering wheel when the
EASY-ENTRY/EXIT feature is active The steering wheel swings upwards when
you: R
remove the SmartKey from the ignition lock R
open the driver's door with KEYLESS-GO in
position 1 R
open the driver's door and the SmartKey is
in position 0 or 1 in the ignition lock
i The steering wheel only moves upwards if
it has not already reached the upper stop.
Position of the steering wheel for driv-
ing
The steering wheel is moved to the last selec-
ted position when: R
the driver's door is closed R
you insert the SmartKey into the ignition
lock
or R
you press the Start/Stop button once on
vehicles with KEYLESS-GO
When you close the driver's door with the
ignition switched on, the steering wheel is
also automatically moved to the previously
set position. Steering wheel 123
Seats, steering wheel and mirrors Z

The last position of the steering column is
stored when you: R
switch off the ignition. R
save the setting with the memory function
( Y
page 127).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident, the steering column
will move upwards when the driver's door is
opened. This occurs irrespective of the posi-
tion of the SmartKey in the ignition lock. This
makes it easier to exit the vehicle and rescue
the occupants.
The crash-responsive EASY-EXIT feature is
only operational if the EASY-EXIT/ENTRY fea-
ture is activated in the on-board computer
( Y
page 285).
Mirrors
Rear-view mirror
X
Anti-glare mode: flick anti-glare lever C
forwards or back. Exterior mirrors
Adjusting the exterior mirrors
G WARNING
You could lose control of your vehicle if you do
the following while driving: R
adjust the driver's seat, head restraint,
steering wheel or mirrors R
fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
G WARNING
The exterior mirror on the front-passenger
side reduces the size of the image. Visible
objects are actually closer than they appear.
This means that you could misjudge the dis-
tance from road users traveling behind, e.g.
when changing lane. There is a risk of an acci-
dent.
For this reason, always make sure of the
actual distance from the road users traveling
behind by glancing over your shoulder.
X
Turn the SmartKey to position 1 or 2 in the
ignition lock ( Y
page 165). X
Press button C for the left-hand exterior
mirror or button D for the right-hand exte-
rior mirror.
The indicator lamp in the corresponding
button lights up in red.124
Mirrors
Seats, steering wheel and mirrors

X
Adjust the seat ( Y
page 110).X
On the driver's side, adjust the steering
wheel ( Y
page 122 )a nd the exterior mirrors
( Y
page 124). X
Press the M memory button and then press
one of the storage position buttons 1 , 2 or
3 within three seconds.
The settings are stored in the selected pre-
set position. A tone sounds when the set-
tings have been completed.
The memory function can still be used if the
SmartKey has been removed.
Calling up a stored setting X
Press the button for storage position 1 , 2 or
3 . Keep pressing until the seat, steering
wheel and exterior mirrors are in the stored
position.
The setting procedure is interrupted as soon
as you release the storage position buttons.128
Memory function
Seats, steering wheel an d mirrors

running lamps or the parking lamps and the
low-beam headlamps are switched on or off
automatically depending on the brightness
of the ambient light. X
To switch on automatic headlamp
mode: turn the light switch to X .
G WARNING
When the light switch is set to X , the low-
beam headlamps may not be switched on
automatically if there is fog, snow or other
causes of poor visibility due to the weather
conditions such as spray. There is a risk of an
accident.
In such situations, turn the light switch to
X .
The automatic headlamp feature is only an
aid. The driver is responsible for the vehicle's
lighting at all times.
Only for Canada:
The daytime running lamps improve the visi-
bility of your vehicle during the day. The day-
time running lamps function is required by law
in Canada. It cannot therefore be deactivated.
When the engine is running and the vehicle is
stationary: if you move the selector lever from
a drive position to P , the daytime running
lamps/low-beam headlamps go out after
three minutes.
When the engine is running, the vehicle is
stationary and in bright ambient light: if you
turn the light switch to ` , the daytime
running lamps and parking lamps switch on.
If the engine is running and you turn the light
switch to X , the manual settings take
precedence over the daytime running lamps.
USA only:
The daytime running lamps improve the visi-
bility of your vehicle during the day. To do this,
the daytime running lamps function must be
switched on using the on-board computer
( Y
page 284).
If the engine is running and you turn the light
switch to ` or X , the manual settings take precedence over the daytime running
lamps.
Low-beam headlamps
Even if the light sensor does not detect that it
is dark, the parking lamps and low-beam
headlamps switch on when the ignition is
switched on and the light switch is set to the
X position. This is a particularly useful
fu nction in the event of rain and fog. X
To switch on the low-beam headlamps:
turn the SmartKey in the ignition lock to
position 2 or start the engine. X
Turn the light switch to X .
The green X indicator lamp in the instru-
ment cluster lights up.
Rear fog lamp
The rear fog lamp improves visibility of your
vehicle for the traffic behind in the event of
thick fog. Please take note of the country-
specific regulations for the use of rear fog
lamps. X
To switch on the rear fog lamps: turn the
SmartKey to position 2 in the ignition lock
or start the engine. X
Turn the light switch to X or X .X
Press the ^ button.
The yellow ^ indicator lamp in the
instrument cluster lights up. X
To switch off the rear fog lamp: press the
^ button.
The yellow ^ indicator lamp in the
instrument cluster goes out.
Parking lamps
! If the battery has been excessively dis-
charged, the parking lamps or standing
lamps are automatically switched off to
enable the next engine start. Always park
your vehicle safely and sufficiently lit
according to legal standards. Avoid the
continuous use of the ` parking lamps
for several hours. If possible, switch on the
d right or the c left standing lamp.Exterior lighting 131
Lights and windshield wipers Z

X
To switch on: turn the light switch to ` .
The green ` indicator lamp in the instru-
ment cluster lights up.
Standing lamps
Switching on the standing lamps ensures the
corresponding side of the vehicle is illumina-
ted. X
To switch on the standing lamps: the
SmartKey is not in the ignition lock or it is in
position 0 .X
Turn the light switch to c (left-hand side
of the vehicle) or d (right-hand side of
the vehicle).
Vehicles towing a trailer: both the right and
left standing lamps (tail lamps) are always
illuminated on the trailer.
Combination switch
Turn signal
C
High-beam headlampsD
Turn signal, right

Installing the wiper blades X
Position new wiper blade C in the retainer
on the wiper arm and slide it into place in
the direction of the arrow.
The wiper blade audibly engages. X
Make sure that the wiper blade is seated
correctly. X
Fold the wiper arm back onto the wind-
shield.
Replacing the rear window wiper blade
Removing a wiper blade
X
Remove the SmartKey from the ignition
lock. X
Fold wiper arm C away from the rear win-
dow until it engages. X
Position wiper blade D at a right angle to
wiper arm C .X
Hold wiper arm C and press wiper
blade D in the direction of the arrow until
it releases. X
Remove wiper blade D . Installing a wiper blade X
Place new wiper blade D onto wiper
arm C . X
Hold wiper arm C and press wiper
blade D in the opposite direction to the
arrow until it engages. X
Make sure that wiper blade D is seated
correctly. X
Position wiper blade D parallel to wiper
arm C . X
Fold wiper arm C back onto the rear win-
dow.Windshield wipers 141
Lights and windshield wipers Z

Problems with the windshield wipers Problem
Possible causes/consequences and P Solutions
The windshield wipers
are jammed. Leaves or snow, for example, may be obstructing the windshield
wiper movement. The wiper motor has been deactivated. X
For safety reasons, you should remove the SmartKey from the
ignition lock.
or X
Switch off the engine using the Start/Stop button and open the
driver's door. X
Remove the cause of the obstruction. X
Switch the windshield wipers back on.
The windshield wipers
fail completely. The windshield wiper drive is malfunctioning. X
Select another wiper speed on the combination switch. X
Have the windshield wipers checked at a qualified specialist
workshop.142
Windshield wipers
Lights and windshield wipers

Useful information
i This Operator's Manual describes all
models and all standard and optional equip-
ment 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.
i Read the information on qualified special-
ist workshops ( Y
page 29).
Overview of climate control systems
General notesObserve the settings recommended on the
following pages. The windows could other-
wise fog up.
To prevent the windows from fogging up: R
switch off climate control only briefly R
switch on air-recirculation mode only
briefly R
switch on the cooling with air dehumidifi-
cation function R
switch on the defrost windshield function
briefly, if required
Climate control regulates the temperature
and the humidity in the vehicle interior and
filters undesirable substances out of the air.
Climate control can only be operated when
the engine is running. Optimum operation is
only achieved with the side windows and roof
closed.
The residual heat function can only be acti-
vated or deactivated with the ignition
switched off ( Y
page 159).
i Ventilate the vehicle for a brief period
during warm weather, e.g. using the con-
venience opening feature ( Y
page 99).
This will speed up the cooling process and
the desired interior temperature will be
reached more quickly. i The integrated filter filters out most par-
ticles of dust and soot and completely fil-
ters out pollen. It also reduces gaseous pol-
lutants and odors. A clogged filter reduces
the amount of air supplied to the vehicle
interior. For this reason, you should always
observe the interval for replacing the filter,
which is specified in the Maintenance
Booklet. As it depends on environmental
conditions, e.g. heavy air pollution, the
interval may be shorter than stated in the
Maintenance Booklet.
i It is possible that under certain circum-
stances the residual heat function may be
activated automatically an hour after the
SmartKey has been removed in order to dry
the automatic climate control. The vehicle
is then ventilated for 30 minutes.144
Overview of climate control systems
Climate control

Problems with the "Cooling with air dehumidification" function Problem
Possible causes/consequences and P Solutions
The indicator lamp in
the Z or V but-
ton flashes three times
or remains off. The
"Cooling with air dehu-
midification" function
cannot be switched on. Cooling with air dehumidification has been deactivated due to a
malfunction. X
Visit a qualified specialist workshop.
Setting climate control to automatic
General notes If you deactivate the "Cooling with air-dehu-
midification" function, the air inside the vehi-
cle will not be cooled. The air inside the vehi-
cle will also not be dehumidified. The win-
dows can fog up more quickly. Therefore, only
deactivate the "Cooling with air-dehumidifi-
cation" function briefly.
In automatic mode, the set temperature is
maintained automatically at a constant level.
The system automatically regulates the tem-
perature of the dispensed air, the airflow and
the air distribution.
Automatic mode will achieve optimal opera-
tion if cooling with air dehumidification is also
activated. If necessary, cooling with air dehu-
midification can be deactivated.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the X button. Automatic control
X
Turn the SmartKey to position 2 in the igni-
tion lock ( Y
page 165). X
Set the desired temperature. X
To activate: press the X button.
The indicator lamp in the X button lights
up. Automatic air distribution and airflow
are activated. X
To switch to manual mode: press the