2019 MERCEDES-BENZ GLS SUV instrument cluster

If indicator lamp
0044is off, the ECO start/stop
function has been deactivated manually or as
the result of a malfunction. Problems with the engine
Problem
Possible causes/consequences and
0050 0050Solutions The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
Before attempting to start the engine again:
X Turn the SmartKey in the ignition lock back to position 0092.
or X Press the Start/Stop button repeatedly until all indicator lamps in
the instrument cluster go out.
X Try to start the engine again (Y page 141). Avoid excessively long
and frequent attempts to start the engine as these will drain the
battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 343).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X Allow the starter motor to cool down for approximately two minutes.
X Try to start the engine again.
If the engine still does not start: X Consult a qualified specialist workshop. Vehicles with a gasoline
engine:
The engine is not running
smoothly and is misfir-
ing. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic converter
and damage it.
X Have the cause rectified immediately at a qualified specialist work-
shop. The coolant temperature
gage shows a value
above 248 ‡ (120 †). The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 324). Observe the warning notes
as you do so and add coolant if necessary. 146
DrivingDriving and parking

X
To deactivate: press button0043.
or X Use the DYNAMIC SELECT controller to
change the drive program.
Permanent setting (Mercedes-AMG
vehicles) X
To activate: shift the DIRECT SELECT lever to
position 005B.
X Press button 0043.
Indicator lamp 0044lights up.
X To deactivate: press button0043.
or X Use the DYNAMIC SELECT controller to
switch to the Individualdrive program.
Indicator lamp 0044goes out.
Shifting gears !
Mercedes-AMG vehicles:
the automatic
transmission does not shift up automatically
even when the engine limiting speed for the
current gear is reached. When the engine lim- iting speed is reached, the fuel supply is cut to
prevent the engine from overrevving. Always
make sure that the engine speed does not
reach the red area of the tachometer. There is
otherwise a risk of engine damage. X
To shift up: pull steering wheel paddle
shifter 0044.
The automatic transmission shifts up to the
next gear.
All vehicles (except Mercedes-AMG vehi-
cles): if the maximum engine speed in the
gear currently engaged is reached and you
continue to accelerate, the automatic trans-
mission automatically shifts up to prevent
engine damage.
X To shift down: pull steering wheel paddle
shifter 0043.
The automatic transmission shifts down to
the next gear.
Automatic down shifting occurs when coast-
ing.
If the engine were to exceed the maximum
engine speed when shifting down, the auto-
matic transmission protects against engine
damage by not shifting down.
Shift recommendation The gearshift recommendations assist you in
adopting an economical driving style. The rec-
ommended gear is shown in the multifunction
display.
X When the corresponding gearshift recom-
mendation 0043appears in the multifunction
display of the instrument cluster, shift to rec-
ommended gear 0044. Automatic transmission
153Driving and parking Z

G
WARNING
Fuels are toxic and harmful to health. There is a risk of injury.
You must avoid fuels coming into contact with
skin, eyes and clothes or being swallowed.
Do not inhale the fuel vapors. Keep children
away from fuels.
Keep doors and windows closed during the
refueling process.
If you or others come into contact with fuel,
observe the following points:
R Immediately rinse the fuel off your skin with
soap and water.
R If you get fuel into your eyes, immediately
rinse your eyes throughly with clean water.
Seek medical attention immediately.
R Seek medical attention immediately if fuel
has been swallowed. Do not induce vomit-
ing.
R Immediately change out of clothing which
has come into contact with fuel. G
WARNING
Electrostatic charging can lead to the creation
of sparks and ignite fuel vapor. There is a risk of fire and explosion.
Touch the metallic body of the vehicle before
you open the fuel filler cap or handle the pump nozzle. Any possible electrostatic charge
present will in this way be depleted.
Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
! Do not use diesel to refuel vehicles with a
gasoline engine. Do not switch on the ignition if you accidentally refuel with the wrong fuel.
Otherwise, the fuel will enter the fuel system. Even small amounts of the wrong fuel could
result in damage to the fuel system and the
engine. Notify a qualified specialist workshop
and have the fuel tank and fuel lines drained
completely.
! Overfilling the fuel tank could damage the
fuel system. !
Take care not to spill any fuel on painted
surfaces. You could otherwise damage the
paintwork.
! Use a filter when adding fuel from a fuel can.
The fuel lines and/or the fuel injection system could otherwise be blocked by particles fromthe fuel can.
Do not get into the vehicle again during the refu-
eling process. Otherwise, electrostatic charge
could build up again.
If you overfill the fuel tank, fuel could spray out
when the fuel pump nozzle is removed.
For further information on fuel and fuel quality
(Y page 385). Refueling
General information Pay attention to the important safety notes
(Y
page 155).
The fuel filler flap is unlocked or locked auto-
matically when you unlock or lock the vehicle
with the SmartKey or using KEYLESS-GO.
The position of the fuel filler cap is displayed
00B6 in the instrument cluster. The arrow next
to the filling pump indicates the side of the vehi- cle.
Opening the fuel filler flap 0043
To open the fuel filler flap
0044 To insert the fuel filler cap
0087 Instruction label for fuel type to be refueled
0085 Tire pressure table 156
RefuelingDriving and parking

Parking
Important safety notes
G
WARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi- cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields. G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
! Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied
R the transmission must be in position 005Dand
the SmartKey must be removed from the igni- tion lock
R the front wheels must be turned towards the
curb on steep uphill or downhill gradients
R the empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients
R a laden vehicle must also be secured at the
rear axle with a wheel chock or similar, for
example, on uphill or downhill gradients Switching off the engine
G
WARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
X Apply the electric parking brake.
X Shift the transmission to position 005D.
X With the SmartKey: turn the SmartKey to
position 0092in the ignition lock and remove it.
The immobilizer is activated.
X With KEYLESS-GO:
Press the Start/Stop button (Y page 140)
The engine stops and all the indicator lamps in the instrument cluster go out.
If you switch the engine off with the transmis-
sion in position 005Eor005B, the automatic trans-
mission shifts to 005Cautomatically.
If you then open the driver's or front-passenger
door, the automatic transmission shifts to 005D
automatically.
If you want the automatic transmission to
remain in neutral 005C, e.g. when having the vehi-
cle cleaned in an automatic, tow-through car
wash:
X Vehicles with a SmartKey: switch on the
ignition.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock.
X Insert the SmartKey into the ignition lock.
X Switch on the ignition.
X All vehicles: depress the brake pedal and
keep it depressed.
X Engage neutral 005C.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the SmartKey
in the ignition lock.
i The engine can be switched off in an emer-
gency while the vehicle is in motion by press-
ing and holding the Start/Stop button for
three seconds. 158
ParkingDriving and parking

Electric parking brake
General notes G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction in
the system, it may not be possible to apply the
released parking brake.
X If this is the case, only park the vehicle on
level ground and secure it to prevent it rolling
away.
X Shift the automatic transmission to position
005D.
It may not be possible to release an applied
parking brake if the on-board voltage is low or
there is a malfunction in the system. Contact a
qualified specialist workshop.
i The electric parking brake performs a func-
tion test at regular intervals while the engine
is switched off. The sounds that can be heard while this is occurring are normal. Applying or releasing manually X
To engage: push handle 0043.
When the electric parking brake is engaged,
the 0049 (USA only) or 0024(Canada only)
red indicator lamp lights up in the instrument
cluster.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: pull handle0043.
The red 0049(USA only) or 0024(Canada
only) indicator lamp in the instrument cluster goes out.
i The electric parking brake can only be
released:
R when the SmartKey is in position 0047in the
ignition lock (Y page 140) or
R if the ignition was switched on using the
Start/Stop button
To ensure that you do not roll backwards when
pulling away on an uphill slope, engage the elec-
tric parking brake (Y page 143).
Applying automatically The electric parking brake is automatically
applied when the transmission is in position 005D
and
R the engine is switched off or
R the driver is not wearing a seat belt and the
driver's door is opened
To prevent the electric parking brake from being automatically applied, pull handle 0043. Parking
159Driving and parking Z

The electric parking brake is also applied auto-
matically if:
R Active Distance Assist DISTRONIC brings the
vehicle to a standstill or
R the HOLD function is keeping the vehicle sta-
tionary
R Active Parking Assist or the Parking Package
with rear view camera is keeping the vehicle
stationary
In addition, at least one of the following condi-
tions must be fulfilled:
R the engine is switched off
R the driver is not wearing a seat belt and the
driver's door is opened
R there is a system malfunction
R the power supply is insufficient
R the vehicle is stationary for a lengthy period
The red 0049(USA only) or 0024(Canada only)
indicator lamp in the instrument cluster lights
up.
The electric parking brake is not automatically
applied if the engine is switched off by the ECO
start/stop function.
Releasing automatically The electric parking brake is released automat-
ically when all of the following conditions are
fulfilled:
R The engine is running.
R The seat belt tongue is engaged in the belt
buckle.
R The transmission is in position 005Bor005E and
you depress the accelerator pedal or, on a
level surface, you shift from transmission
position 005Dto005B or005E.
R If the transmission is in position 005E, the trunk
lid must be closed.
If the seat belt tongue is not engaged in the seat belt buckle, the following conditions must be
fulfilled:
R The driver's door is closed.
R You are shifting from transmission position
005D or have previously driven at speeds
greater than 2 mph (3 km/h).
R If the transmission is in position 005E, the trunk
lid must be closed.
When the electric parking brake is released,
the 0024 indicator lamp goes out in the instru-
ment cluster. Emergency braking
The vehicle can also be braked during an emer-
gency by using the electric parking brake.
X While driving, push handle 0043of the electric
parking brake.
The vehicle is braked for as long as the handle of the electric parking brake is pressed. The
longer the electric parking brake handle is
depressed, the greater the braking force.
During braking:
R a warning tone sounds
R the Release Release Park.
Park.Brake
Brakemessage appears
R the red 0049(USA only) or 0024(Canada
only) indicator lamp on the instrument cluster will flash
When the vehicle has been braked to a stand-
still, the electric parking brake is applied. Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six weeks, the vehicle may suffer damage as a
result of lack of use.
X Visit a qualified specialist workshop and seek
advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop. 160
ParkingDriving and parking

intervals and in accordance with the Mercedes-
Benz service requirements.
You can obtain current information concerning
the servicing of your vehicle at any time from a
qualified specialist workshop. This could be an
overview of the maintenance work or any addi-
tional maintenance work, for example. ECO display
The ECO display shows you how economical
your driving style is. The ECO display assists you in achieving the most economical driving style
for the selected settings and prevailing condi-
tions. Your driving style can significantly influ-
ence the vehicle's consumption. 0043
Acceleration
0044 Coasting
0087 Constant
0085 Additional range achieved
Range 0085is shown under Bonus Bonusfr.
fr.Start
Start and
represents the additional range achieved since
the beginning of the journey as a result of an
adapted driving style.
If the fuel level has dropped into the reserve
range, the Reserve Fuel Reserve Fuel message is shown in
the multifunction display instead of range 0085.
The 00B6 warning lamp in the instrument cluster
also lights up (Y page 282). The ECO display consists of three sections, with
an inner and outer area. The sections corre-
spond to the following three categories: 0043
Acceleration
(evaluation of all accel-
eration processes):
R the outer area fills up and the inner
area lights up green: moderate
acceleration, especially at higher
speeds
R the outer area empties and the
inner area is gray: sporty acceler-
ation 0044
Coasting
(evaluation of all decelera-
tion processes):
R the outer area fills up and the inner
area lights up green: anticipatory
driving, keeping your distance and
early release of the accelerator.
The vehicle can coast without use
of the brakes.
R the outer area empties and the
inner area is gray: frequent heavy
braking 0087
Constant
(continuous evaluation
over the entire journey):
R the outer area fills up and the inner
area lights up green: constant
speed and avoidance of unneces-
sary acceleration and deceleration
R the outer area empties and the
inner area is gray: fluctuations in
speed The three inner areas display the current driving
style and light up green as a result of a particu-
larly economical driving style. Depending on the driving situation, up to two areas may light up
simultaneously.
At the beginning of the journey, the three outer
areas are empty and fill up as a result of eco-
nomical driving. A higher level indicates a more
economical driving style. If the three outer areas
are completely filled at the same time, the driver
has adopted the most economical driving style
for the selected settings and prevailing condi-
tions. The ECO display border lights up.
The ECO display does not indicate the actual fuel consumption. The additionally achieved range
displayed under Bonus fr. Start Bonus fr. Start does not
indicate a fixed consumption reduction. 162
Driving tipsDriving and parking

time. This may also occur after the vehicle has
been washed or driven through deep water.
You then have to depress the brake pedal more
firmly. Maintain a greater distance from the
vehicle in front.
After driving on a wet road or having the vehicle washed, brake firmly while paying attention to
the traffic conditions. This will warm up the
brake discs, thereby drying them more quickly
and protecting them against corrosion.
Limited braking performance on salt-
treated roads If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.
R Brake occasionally to remove any possible
salt residue. Make sure that you do not
endanger other road users when doing so.
R Carefully depress the brake pedal and the
beginning and end of a journey.
R Maintain a greater distance to the vehicle
ahead.
Servicing the brakes !
The brake fluid level may be too low, if:
R if the red brake warning lamp lights up in
the instrument cluster and
R you hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately. Consult a qualified specialist workshop to
arrange this.
! A function or performance test should only
be carried out on a 2-axle dynamometer. If
you wish to operate the vehicle on such a
dynamometer, please consult a qualified spe-
cialist workshop in advance. You could oth-
erwise damage the drive train or the brake
system.
! Because ESP ®
is an automatic system, the
engine and ignition must be switched off
(SmartKey in position 0or 1or Start/Stop
button in position 0or 1) when the electric parking brake is being tested on a brake dyna-
mometer (maximum 10 second s).
Braking triggered automatically by ESP ®
may
seriously damage the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional- ity of your brakes at regular intervals. To do so,
depress the brake pedal firmly when driving at a
high speed. This improves the grip of the brake
pads.
You can find a description of Brake Assist (BAS) on (Y page 67 )or of BAS PLUS on (Y page 72).
Mercedes-Benz recommends that you only have
brake pads/linings installed on your vehicle
which have been approved for Mercedes-Benz
vehicles or which correspond to an equivalent
quality standard. Brake pads/linings which have not been approved for Mercedes-Benz vehicles
or which are not of an equivalent quality could
affect your vehicle's operating safety.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard. Brake fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
High-performance brake system
(Mercedes-AMG vehicles) The high-performance brake system is designed
for heavy loads. This may lead to noise when
braking. This will depend on:
R Speed
R Braking force
R Environmental conditions, such as tempera-
ture and humidity
The wear of individual components of the brake system, such as the brake pads/linings or brake
discs, depends on the individual driving style
and operating conditions.
For this reason, it is impossible to state a mile-
age that will be valid under all circumstances. An aggressive driving style will lead to high wear. 164
Driving tipsDriving and parking