2022 MERCEDES-BENZ GLS SUV Owners Manual

The following messages appear in order in the
Ins trument Display when the AdBlue n
tank
requires topping up:
= Refill AdBlue See Owner

available, you can also top up AdBlue
n
using a
canis ter. 
Screw on the fastener of AdBlue n
r
eNll canis-
ter 4. 
Screw the disposable hose 3 ont
o the open-
ing of AdBlue n
reNll canister 4 until hand-
tight. 
Screw the disposable hose 3 ont
o the Nller
neck of the vehicle until hand-tight. 
Lis up and tip A
dBluen
reNll canister 4.
The Nlling process stops when the AdBlue n
tank is completely full. AdBlue
n
r
eNll canister 4 can be removed
when it has been only partially emptied. 
Unscrew and close the disposable hose 3
and A
dBluen
reNll canister 4 in reverse
order. 
Replace AdBlue n
Nller cap 2 and tur
n it
clockwise until it audibly engages. 
Close fuel Nller Oap 1. 
Switch on the vehicle for at least 60 seconds.
% If the vehicle could not be started as the
A

dBlue n
tank was empty, it can take up to
60 seconds for the reNll to be detected. 
Start the vehicle.
% Avoid storing AdBlue n
r
eNll containers perma-
nently in the vehicle. Parking
Parking the vehicle
&
WARNING Risk of accident and injur
y
caused by an insuPciently secured vehi-
cle rolling away
If the vehicle is not securely parked suP-
cientl
y, it can roll away in an uncontrolled way
even at a slight downhill gradient. 
On uphill or downhill gradients, turn the
fr

ont wheels so that the vehicle rolls
towards the kerb if it starts moving. 
apply the parking brake. 
Switch the transmission to position j. &
WARNING Risk of Nr
e caused by hot
exhaust system parts
Flammable materials such as leaves, grass or
twigs ma
y ignite. 
Park the vehicle so that no Oammable
mat
erial can come into contact with hot
vehicle components. Driving and parking
223


In particular, do not park on dry grass-
land or har vested grain Nelds. &
WARNING Risk of accident and injur
y due
to leaving children unattended in the vehi-
cle
If children are les unatt
ended in the vehicle,
they could, in particular:
= open doors, thereby endangering other
persons or road users.
= get out and be struck by oncoming traPc.
= operate vehicle equipment and become
trapped, for example.
In addition, the children could also set the
vehicle in motion by, for example:
= releasing the parking brake.
= changing the transmission position.
= starting the vehicle. 
Never leave children unattended in the
v
ehicle. 
When leaving the vehicle, always take the
k
ey with you and lock the vehicle. 
Keep the vehicle key out of the reach of
c
hildren. *
NOTE Damag
e to the vehicle due to it roll-
ing away 
Always secure the vehicle against rolling
a
way. *
NOTE Damag
e due to the vehicle lowering Vehicles with AIRMATIC or E-ACTIVE BODY
C

ONTROL: The vehicle can lower because of
temperature diMerences or longer non-opera-
tional times. This can cause damage to parts
of the body. 
When stopping the vehicle and when
dr
iving oM, make sure that there are no
obstacles such as curbs under or in the
immediate vicinity of the body. 
Bring the vehicle to a standstill by pressing the
br
ake pedal. 
On gradients, turn the front wheels so that the
v
ehicle will roll towards the kerb if it starts
moving. 
Apply the electric parking brake. 224
Driving and parking


Engage transmission position j in a s tation-
ary vehicle with the brake pedal depressed
( page 212). 
Switch oM t
he vehicle by pressing button 1.
Release the service brake slowly. 
Get out of the vehicle and lock it.
% When you park the vehicle, you can still oper-
at

e the side windows and the sliding sunroof
for approximately four minutes if the driver's
door is closed.
% When you park the vehicle, you can still oper-
at

e the side windows and the panoramic slid-
ing sunroof for approximately four minutes if
the driver's door is closed. Garage door opener
Programming buttons for the garage door opener
&
DANGER Risk of f
atal injuries due to
exhaust gases
Combustion engines emit poisonous exhaust
g
ases such as carbon monoxide. Breathing in these exhaust gases is hazardous to health
and r

esults in poisoning. 
Never leave the engine and, if present,
t

he stationary heater, running in an
enclosed space without suPcient venti-
lation. &
WARNING Risk of injur
y by becoming
trapped when opening and closing a
garage door
When you operate or program a garage door
wit
h an integrated garage door opener, per-
sons can become trapped or struck by the
garage door if they stand within its range of
movement. 
Always make sure that nobody is within
t
he range of the garage door's move-
ment. Before programming the garage door opener, park
t
he vehicle outside the garage. Make sure that the
vehicle is switched on but not started. Requirements:
= The v

ehicle has been parked outside the
garage or outside the range of movement of
the door.
= The vehicle is switched on.
= The vehicle has not been started.
% The garage door opener function is always
a

vailable when the vehicle is switched on. Driving and parking
225


Press and hold button 1, 2 or 3 t hat you
wish to program.
Indicator lamp 4 Oashes yellow.
% It can take up to 20 seconds before the indi-
cat
or lamp Oashes yellow. 
Release the previously pressed button.
Indicat

or lamp 4 continues to Oash yellow.
Point remote control 5 fr
om a distance of
1 cm to 8 cm towards button 1, 2 or 3.
Press and hold button 6 of r
emote control
5 until one of the following signals appears:
= Indicator lamp 4 lights up green continu-
ously. Programming is complete.
= Indicator lamp 4 Oashes green. Program-
ming was successful. Additionally, syn-
chronisation of the rolling code with the
door system must be carried out. 
If indicator lamp 4 does no
t light up or Oash
green: repeat the procedure. 
Release all of the buttons. %
The remote control for the door drive is not
included in t

he scope of delivery of the garage
door opener.
Synchronising the rolling code
R
equirements:
= The door system uses a rolling code.
= The vehicle must be within range of the garage
door or door drive.
= The vehicle as well as persons and objects are
located outside the range of movement of the
door. 
Press the programming button on the door
dr

ive unit.
Initiate the next step within approximately
30 seconds. 
Press previously programmed button 1, 2
or 3 r
epeatedly until the door closes.
When the door closes, programming is com-
pleted.
% Please also read the operating instructions for
t

he door drive. Troubleshooting when programming the remote
contr

ol 
Check if the transmitter frequency of remote
contr

ol 5 is supported. 
Replace the batteries in remote control 5. 
Hold remote control 5 at v
arious angles from
a distance of 1 cm to 8 cm front of the inside
rearview mirror. You should test every position
for at least 25 seconds before trying another
position. 
Hold remote control 5 at t
he same angles at
various distances in front of the inside rear
view mirror. You should test every position for
at least 25 seconds before trying another
position. 
On remote controls that transmit only for a
limit
ed period, press button 6 on remote
control 5 again before transmission ends. 
Angle the aerial line of the garage door opener
unit t
owards the remote control. 226
Driving and parking

%
It is possible that older garage doors cannot
be oper ated using the remote control in the
inside rearview mirror even aser you have
successfully performed the measures descri-
bed above. If this is the case, contact the
HomeLink n
Hotline.
% Support and additional information on pro-
g

ramming:
= on the HomeLink n
Hotline on (0) 08000
466 354 65 or +49 (0) 6838 907-277
= on the Internet at https://
www.homelink.com
Opening or closing the garage door
R
equirements:
= The corresponding button is programmed to
operate the door. 
Press and hold buttons 1, 2 or 3 until t
he
door opens or closes. 
If indicator lamp Oashes 4 y
ellow aser
approximately 20 seconds: press and hold the
previously pressed button again until the door
opens or closes. Clearing the garage door opener memory 
Press and hold buttons 1 and 3.
Indicat
or lamp 4 lights up yellow. 
If indicator lamp 4 Oashes g
reen: release
buttons 1 and 3.
The entire memory has been deleted. Electric parking brake
Function of the electric parking brake (applying
aut
omatically) &
WARNING Risk of accident and injur
y due
to leaving children unattended in the vehi-
cle
If children are les unatt
ended in the vehicle,
they could, in particular:
= open doors, thereby endangering other
persons or road users.
= get out and be struck by oncoming traPc.
= operate vehicle equipment and become
trapped, for example. In addition, the children could also set the
v

ehicle in motion by, for example:
= releasing the parking brake.
= changing the transmission position.
= starting the vehicle. 
Never leave children unattended in the
v
ehicle. 
When leaving the vehicle, always take the
k
ey with you and lock the vehicle. 
Keep the vehicle key out of the reach of
c
hildren. The electric parking brake is applied if the trans-
mission is in position j and one of t

he following
conditions is fulNlled:
= The vehicle is switched oM.
= The seat belt tongue is not inserted in the seat
belt buckle of the driver's seat and the driver's
door is opened.
= The transfer case is in the LOW RANGE posi-
tion. Driving and parking
227

%
To prevent application: pull the handle of the
electr
ic parking brake ( page 229).
In the following situations, the electric parking
br
ake is also applied:
= The HOLD function is keeping the vehicle sta-
tionary.
= Active Parking Assist is keeping the vehicle
stationary.
= Active Distance Assist DISTRONIC is bringing
the vehicle to a standstill.
= In addition, one of the following conditions
must be fulNlled:
- The vehicle is switched oM.
- The seat belt tongue is not inserted in the
seat belt buckle of the driver's seat and
the driver's door is opened.
- There is a system malfunction.
- The power supply is insuPcient.
- The vehicle is stationary for a lengthy
period. When the electric parking brake is applied, the
r
ed $ indicator lamp lights up in the instru-
ment cluster.
% The electric parking brake is not automatically
applied if t

he vehicle is switched oM by the
ECO start/stop function.
Function of the electric parking brake (releasing
aut
omatically)
The electric parking brake is released when the
following conditions are fulNlled:
= The driver's door is closed.
= The vehicle has been started.
= The transmission is in position h or k and
you depress the accelerator pedal or you shis
from transmission position j to h or k
when on level ground.
= If the transmission is in position k, the tail-
gate must be closed.
= The seat belt tongue is inserted into the seat
belt buckle of the driver's seat.
If the seat belt tongue is not inserted into the
seat belt buckle of the driver's seat, one of the
following conditions must be fulNlled:-
Y
ou shis from transmission position j.
or
- You have previously driven at speeds
greater than 3 km/h.
When the electric parking brake is released, the
red $ indicator lamp in the instrument cluster
goes out. 228
Driving and parking

Applying/releasing the electric parking brake
manuall
y
Applying 
Push handle 1.
The r
ed $ indicator lamp lights up in the
instrument cluster. %
The electric parking brake is only securely
applied if t

he red $ indicator lamp is lit
continuously.
Releasing 
Switch on the vehicle. 
Pull handle 1.
The r

ed $ indicator lamp in the instrument
cluster goes out.
Emergency braking 
Press and hold handle 1.
As long as t
he vehicle is in motion, the
Release parking brake message is displayed
and the red $ indicator lamp Oashes.
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. The
red $ indicator lamp lights up in the instru-
ment cluster. Information on collision detection on a parked
v

ehicle If a collision is detected when the tow-away pro-
t
ection is primed on a locked vehicle, you will receive a
no
tiNcation in the multimedia system
when you switch the vehicle on.
You will receive information about the following
points:
= The area of the vehicle that may have been
damaged.
= The force of the impact.
The following situation can lead to inadvertent
activation:
= The parked vehicle is moved, forexample, in a
two-storey garage.
% Deactivate tow-away protection in order to
pr
event inadvertent activation. If you deacti-
vate tow-away protection, collision detection
will also be deactivated.
System limits
De
tection may be restricted in the following situa-
tions:
= the vehicle is damaged without impact,
forexample, if an outside mirror is torn oM or
the paint is damaged by a key
= an impact occurs at low speed Driving and parking
229