MERCEDES-BENZ GLS 2018 Owners Manual

The headlamp range is set automatically
depending on the distance between the vehi-
cle and other road users.
If you are driving at speeds above approx-
imately 19 mph (30 km/ h) and no other road
users have been detected:
The high-beam headlamps are switched on
automatically. The W indicator lamp in the
instrument cluster also lights up.
If you are driving at speeds below approx-
imately 16 mph (25 km/h) or other road users
have been detected or the roads are ade-
quately lit:
The high-beam headlamps are switched off
automatically. The W indicator lamp in the
instrument cluster goes out. The

Aut oma tic interi or lighting cont rolX
To switch on: set th e switch to center posi-
tion

Halogen headlamps
C
Low-beam headlamp: H7 55 WD
High-beam headlamp: H7 55 W

X
Simultaneously press on bulb holder D and
pull lever

Switching the rear window wiper on/
off
Combination switch
C

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 window
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 cor-
rectly. X
Position wiper blade D parallel to wiper
arm C . X
Fold wiper arm C back onto the rear window.
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 igni-
tion 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 work-
shop.124
Windshield wipers
Lights and windshield wipers

Overview of climate control systems
General notes Observe the settings recommended on the fol-
lowing pages. The windows could otherwise 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 dehumidifica-
tion 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.
The residual heat function can only be activated
or deactivated with the ignition switched off
( Y
page 135).
i Ventilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature ( Y
page 90). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly. If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated ( Y
page 142).
i The integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to the vehicle interior.
Depending on the operating conditions and
environmental influences, the interval for
replacing the filter may be shorter than speci-
fied.
i Vehicles with ionization of the interior
air and air filter: in addition to ionization, the
vehicle has an air filter with anti-allergenic
properties that contribute to improved air fil-
tration.
i It is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
matic climate control. The vehicle is then ven-
tilated for 30 minutes.
Control panel for dual-zone automatic climate control
USA only
Front control panel
C
Sets the temperature, left ( Y
page 132)
D
Defrosts the windshield ( Y
page 133)Overview of climate control systems 125
Climate control

Rear control panelq
Sets rear-compartment climate control to automatic ( Y
page 132)r
Directs the air distribution through the rear air vents ( Y
page 133)s
Switches the seat heating on the right-hand side on/off ( Y
page 106)t
Directs the air distribution through the footwell vents ( Y
page 133)u
Switches the rear climate control on/off ( Y
page 131)v
Switches the seat heating on the left-hand side on/off ( Y
page 106)
Control panel for 3-zone automatic climate control
USA only
Front control panelC
Sets the temperature, left ( Y
page 132)D
Defrosts the windshield ( Y
page 133)

v
Sets rear-compartment climate control to automatic ( Y
page 132)w
Directs the airflow through the rear air vents ( Y
page 133)x
Switches the seat heating on the right-hand side on/off ( Y
page 106)y
Directs the airflow through the footwell vents ( Y
page 133)z
Switches the rear climate control on/off ( Y
page 131){
Reduces the airflow ( Y
page 133)|
Switches the seat heating on the left-hand side on/off ( Y
page 106)
Canada only
Front control panelC
Sets the temperature, left ( Y
page 132)D
Defrosts the windshield ( Y
page 133)