hood open MERCEDES-BENZ GLS 2019 Owners Manual

Fuel
Additives ........................................ 386
Consumption statistics .................. 233
Displaying the current consump-
tion ................................................ 234
Displaying the range ...................... 234
Driving tips .................................... 161
Fuel gauge ...................................... .37
Grade (gasoline) ............................ 385
Important safety notes .................. 385
Problem (malfunction) .................. .157
Refueling ........................................ 155
Tank content/reserve fuel ............. 385
Fuel filler flap
Opening ......................................... 156
Fuel level
Calling up the range (on-board
computer) ...................................... 234
Fuel tank
Capacity ........................................ 385
Problem (malfunction) ................... 157
Fuses
Allocation chart ............................ .349
Before changing ............................ .349
Dashboard fuse box ....................... 350
Fuse box in the engine compart-
ment .............................................. 350
Fuse box under rear bench sea t.... 350
Important safety notes .................. 349 G
Garage door opener Clearing the memory ..................... 319
General notes ................................ 316
Important safety notes .................. 316
Opening/closing the garage doo r..3 19
Problems when programming ....... .318
Programming (button in the rear-
view mirror) ................................... 317
Synchronizing the rolling code ....... 317
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 242
Genuine parts ...................................... 27
Glove box .......................................... .296
Google™ Local Search
see also Digital Operator's Man-
ual ................................................. .287 GTW (Gross Trailer Weight) (defini-
tion) .................................................... 371 H
Hazard warning lamps ......................117
Head restraints
Adjusting ......................................... 99
Adjusting (electrically) ................... 100
Adjusting (manually) ........................ 99
Adjusting (rear) .............................. 100
Installing/removing (rear) .............. 100
Luxury ............................................ 100
Headlamps
Fogging up ..................................... 119
see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................116
High-beam headlamps
Adaptive Highbeam Assist ............. 118
Display message ............................ 257
Replacing bulbs ............................ .121
Switching on/off ........................... 116
Highway mode ................................... 118
Hill start assist .................................. 143
HOLD function
Deactivating ................................... 184
Display message ............................ 264
Function/notes ............................ .183
Home address
see also Digital Operator's Man-
ual ................................................. .287
Hood
Closing .......................................... .322
Display message ............................ 272
Important safety notes .................. 321
Opening ......................................... 321
Horn ...................................................... 36
Hydroplaning ..................................... 165 I
Ignition lock see Key positions
Immobilizer .......................................... 7512
Index

Cockpit
Function Page
0043
Steering wheel paddle shifter 152
0044
Combination switch 116
0087
Instrument cluster 37
0085
Horn
0083
DIRECT SELECT lever 148
0084
Parking Assist PARKTRONIC
warning display
191
006B
Overhead control panel 42
006C
Climate control systems 125
006D
Ignition lock 140
Start/Stop button 140 Function Page
006E
Adjusts the steering wheel
manually
108
006F
Adjusts the steering wheel
electrically
108
Steering wheel heating 109
0070
Cruise control lever 171
0071
Opens the hood 321
0072
Diagnostics connection 31
0073
Electric parking brake 159
0074
Light switch 11536
CockpitAt a glance

The braking application of Active Brake Assist
with cross-traffic function is ended automati-
cally if:
R you maneuver to avoid the obstacle
R there is no longer a risk of collision
R there is no longer an obstacle detected in
front of your vehicle STEER CONTROL
General information STEER CONTROL helps you by transmitting a
noticeable steering force to the steering wheel
in the direction required for vehicle stabilization.
This steering assistance is provided in particular
if:
R both right wheels or both left wheels are on a
wet or slippery road surface when you brake
R the vehicle starts to skid
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 66).
No steering assistance is provided from STEER
CONTROL, if: R ESP ®
is deactivated
R ESP ®
is malfunctioning
R the steering is malfunctioning
If ESP ®
is malfunctioning, you will be assisted
further by the electrical power steering. Protection against theft
Immobilizer
X To activate with the SmartKey: remove the
SmartKey from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
The immobilizer prevents your vehicle from
being started without the correct SmartKey.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Anyone
can start the engine if a valid SmartKey has been left inside the vehicle. i
The immobilizer is always deactivated when
you start the engine.
In the event that the engine cannot be started (yet the vehicle's battery is charged), the sys-
tem is not operational. Contact an authorized Mercedes-Benz Center or call
1-800 FOR-MERCEDES (in the USA) or
1-800-387-0100 (in Canada). ATA (anti-theft alarm system)
X
To arm: lock the vehicle with the SmartKey or
KEYLESS-GO.
Indicator lamp 0043flashes. The alarm system
is armed after approximately 15 seconds.
X To switch off using the SmartKey: unlock
the vehicle with the SmartKey.
or X Insert the SmartKey into the ignition lock.
X To switch off using KEYLESS-GO: unlock
the vehicle with KEYLESS-GO.
or X Press the Start/Stop button on the dash-
board. The SmartKey must be inside the vehi-
cle.
A visual and audible alarm is triggered if the
alarm system is armed and you open: R a door
R the vehicle with the mechanical key
R the tailgate
R the hood Protection against theft
75Safety Z

Halogen headlamps
0043
Low-beam headlamp: H7 55 W
0044 High-beam headlamp: H7 55 W
0087 Turn signal: W 5 W BV Removing and installing the cover in
the front wheel housing You must remove the cover from the front wheel
housing before you can change the front bulbs.
X To remove: switch off the lights.
X Turn the front wheel inwards.
X Remove securing pin 0044using a suitable tool.
X Slide cover 0043up and remove it.
X To install: insert cover 0043again and slide it
down until it engages.
X Insert securing pin 0044. Low-beam headlamps
X
Remove the cover in the front wheel housing
(Y page 121).
X Turn housing cover 0043counter-clockwise and
remove it.
X Turn bulb holder 0044counter-clockwise and
pull out.
X Pull the bulb out of bulb holder 0044.
X Insert new bulb into bulb holder 0044.
X Insert bulb holder 0044and turn it clockwise.
X Press on housing cover 0043and turn it to the
right.
X Replace the cover in the front wheel housing
(Y page 121). High-beam headlamps
X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise and
remove it.
X Pull lever 0087upwards and remove bulb
holder 0044.
X Remove the bulb from bulb holder 0044.
X Insert the new bulb into bulb holder 0044. Replacing bulbs (vehicles with halogen headlamps)
121Lights and windshield wipers Z

X
Simultaneously press on bulb holder 0044and
pull lever 0087downwards.
X Press on housing cover 0043and turn it clock-
wise. Turn signals
X
Switch off the lights.
X Open the hood.
X Turn housing cover 0043counter-clockwise and
remove it.
X Turn bulb holder 0044counter-clockwise and
pull out.
X Pull the bulb out of bulb holder 0044.
X Insert new bulb into bulb holder 0044.
X Insert bulb holder 0044and turn it clockwise.
X Press on housing cover 0043and turn it to the
right. Windshield wipers
Switching the windshield wipers
on/off
! Do not operate the windshield wipers when
the windshield is dry, as this could damage
the wiper blades. Moreover, dust that has col-
lected on the windshield can scratch the glass
if wiping takes place when the windshield is
dry.
If it is necessary to switch on the windshield
wipers in dry weather conditions, always use
washer fluid when operating the windshield
wipers.
! If the windshield wipers leave smears on the
windshield after the vehicle has been washed
in an automatic car wash, wax or other resi-
dues may be the reason for this. Clean the windshield using washer fluid after washing
the vehicle in an automatic car wash.
! Intermittent wiping with rain sensor: due to
optical influences and the windshield becom- ing dirty in dry weather conditions, the wind-
shield wipers may be activated inadvertently. This could then damage the windshield wiper
blades or scratch the windshield.
For this reason, you should always switch off the windshield wipers in dry weather. Combination switch
0047
003F Windshield wiper off
0048 0062 Intermittent wipe, low (rain sensor set
to low sensitivity)
0049 0063 Intermittent wipe, high (rain sensor
set to high sensitivity)
004A 00AA Continuous wipe, slow
004B 00A9 Continuous wipe, fast
0084 00D3 Single wipe
006B 00D4 To wipe with washer fluid
X Switch on the ignition.
X Turn the combination switch to the corre-
sponding position.
In the 0062or0063 position, the appropriate
wiping frequency is set automatically according
to the intensity of the rain. In the 0063position,
the rain sensor is more sensitive than in
the 0062 position, causing the windshield wiper
to wipe more frequently.
Vehicles with MAGIC VISION CONTROL: the
washer fluid is fed through the wiper blades and when wiping with washer fluid 00D4the washer
fluid is emitted directly from the blades.
If the wiper blades are worn, the windshield will no longer be wiped properly. This could prevent
you from observing the traffic conditions. 122
Windshield wipersLights and windshield wipers

Switching the rear window wipers
on/off
Combination switch
0043
00C5 Rear window wiper switch
0048 008E Wipes with washer fluid
0049 ISwitches on intermittent wiping
004A 0Switches off intermittent wiping
004B 008E Wipes with washer fluid
X Turn the SmartKey to position 0047or0048
(Y page 140).
X Turn switch 0043on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the 00C5 symbol appears in the assistance
graphic in the instrument cluster. Further
information on the assistance graphic
(Y page 238). Replacing the wiper blades
Important safety notes G
WARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
! To avoid damaging the wiper blades, make
sure that you touch only the wiper arm of the
wiper.
! Never open the hood/tailgate if a wiper arm
has been folded away from the windshield/
rear window. Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear
window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the
wiper arm without a wiper blade and it falls
onto the windshield/rear window, the wind-
shield/rear window may be damaged by the
force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
Changing the windshield wiper blades Removing the wiper blades
X Remove the SmartKey from the ignition lock.
X Fold the wiper arm away from the windshield. X
Firmly press release knob 0043and pull wiper
blade 0044upwards from the wiper arm in the
direction of the arrow.
Installing the wiper blades Windshield wipers
123Lights and windshield wipers Z

The ionization of the interior air is odorless and
cannot be perceived directly in the vehicle inte- rior.
You can switch ionization on and off via the mul-
timedia system (see the Digital Operator's Man-
ual).
Ionization can only be operated when the auto-
matic climate control is switched on. The side air vent on the driver's side must be open. Setting the air vents
Important safety notes
G
WARNING
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 out-
lets. 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:
R keep 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.
R never cover the air vents or air intake grilles in
the vehicle interior.
i For virtually draft-free ventilation, adjust the
sliders of the air vents to the center position. Setting the center air vents
0043
Center air vent, left
0044 Center air vent, right
0087 Center vent thumbwheel, right
0085 Center vent thumbwheel, left
X To open or close: turn thumbwheels0087
and 0085to the left or right. Setting the side air vents
Example
0043
Side window defroster vent
0044 Side air vent, left
0087 Thumbwheel for side air vent
X To open or close: turn thumbwheel0087up or
down. Setting the glove box air vent
! Close the air vent when heating the vehicle.
At high outside temperatures, open the air
vent and activate the "cooling with air dehu-
midification" function. Otherwise, tempera-
ture-sensitive items stored in the glove box
could be damaged. 136
Setting the air ventsClimate control

Make sure that the engine cannot be started via
your smartphone before carrying out mainte-
nance or repairs. You can prevent an engine
start via your smartphone if you:
R switch on the hazard warning lamps
R do not lock the doors
R open the hood Pulling away
General notes G
WARNING
If the engine speed is above the idling speed
and you engage transmission position 003A
or 0046, the vehicle could pull away suddenly.
There is a risk of an accident.
When engaging transmission position 003Aor
0046, always firmly depress the brake pedal
and do not simultaneously accelerate.
Depress the accelerator carefully when pulling
away.
The vehicle locks centrally once you have pulled
away. 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 (Y page 241).
It is possible to shift the transmission from posi-
tion 005Dto the desired position only if you
depress the brake pedal. Only then is the park-
ing lock released. If you do not depress the
brake pedal, the DIRECT SELECT lever can still
be moved but the parking lock remains
engaged.
i Upshifts take place at higher engine speeds
after a cold start. This helps the catalytic con- verter to reach its operating temperature
more quickly.
Information on the automatic release of the
electric parking brake (Y page 160).Pulling away with a trailer To ensure that you do not roll backwards when
pulling away on an uphill slope, engage the elec-
tric parking brake.
X Press and hold handle 0043.
The electric parking brake continues to brake
and prevent the vehicle from rolling back-
wards.
The red 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument cluster remains on.
X Depress the accelerator pedal.
X As soon as the vehicle/trailer combination is
held by the driving force of the engine, release lever 0043.
the electric parking brake is released.
The red 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument cluster
goes out.
Hill start assist Hill start assist helps you when pulling away
forward or in reverse on an uphill gradient. It
holds the vehicle for a short 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. G
WARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk 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. Driving
143Driving and parking Z

There is a short delay before a change in outside
temperature appears in the multifunction dis-
play. Coolant temperature gauge
G
WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
! If the coolant temperature is too high, a dis-
play message is shown.
If the coolant temperature display is in the
area marked in red, do not continue driving.
Otherwise, the engine will be damaged.
The coolant temperature gauge is in the instru-
ment cluster on the right-hand side (Y page 37).
Under normal operating conditions and with the specified coolant level, the coolant temperature gauge may rise to the red marking. Operating the on-board computer
Overview 0043
Multifunction display
0044 Right control panel
0087 Left control panel
X To activate the on-board computer: turn
the SmartKey to position 0047in the ignition
lock.
You can control the multifunction display and
the settings in the on-board computer using the buttons on the multifunction steering wheel.
Vehicles with the COMAND multimedia system: you can find further information on the Voice
Control System in the separate operating
instructions.
Vehicles with the Audio 20 multimedia system:
you can find further information on voice-oper-
ated control for navigation in the manufactur-
er's operating instructions. Displays and operation
231On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 00AC
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to catch
fire.
Steam from the overheated engine can also cause serious burns which can occur just by opening the hood.
There is a risk of injury.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 158).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not blocked,
e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out and
the coolant temperature is below 248 ‡ (120 †). Otherwise, the
engine could be damaged.
X Pay attention to the coolant temperature gauge.
If the temperature increases again: X Visit a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). 003D
See Operator's Man‐ See Operator's Man‐
ual ual The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
! Do not drive any further. Otherwise the engine may overheat.
X Pull over and stop the vehicle safely and switch off the engine, pay-
ing attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 158).
X Consult a qualified specialist workshop. Display
messages
259On-board computer and displays Z