2016 MERCEDES-BENZ GLS SUV keyless

X
Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings open.
X Turn the fuel filler cap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder on the
inside of fuel filler flap ;.
X Completely insert the filler neck of the fuel
pump nozzle into the tank, hook in place and refuel.
X Only fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump stops
filling for the first time. Otherwise, fuel may leak out. Vehicles with a diesel engine: the filler neck is
designed for refuelling at diesel filling pumps.
Closing the fuel filler flap X
Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap.
Close the fuel filler flap before locking the vehi-
cle. Problems with the fuel and fuel tank
Problem
Possible causes/consequences and
M MSolutions Fuel is leaking from the
vehicle.
G
WARNING
The fuel line or the fuel tank is faulty.
There is a risk of fire or explosion. X Apply the electric parking brake.
X Switch off the engine.
X Remove the key from the ignition lock.
or, on vehicles with KEYLESS‑GO: X Open the driver's door.
The on-board electronics now have status 0. This is the same as the
key having been removed.
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The engine does not
start. The fuel tank of a vehicle with a diesel engine has been run completely
dry.
X Refuel the vehicle with at least 5 litres of diesel.
X Turn the ignition on for approximately ten seconds (Y page 148).
X Start the engine continuously for a maximum of ten seconds until it
runs smoothly.
If the engine does not start: X Turn the ignition on again for a maximum of ten seconds
(Y page 148).
X Start the engine again continuously for a maximum of ten seconds
until it runs smoothly.
If the engine does not start after three attempts:
X Consult a qualified specialist workshop. Refuelling
165Driving and parking Z

!
Surfaces which have come into contact with
AdBlue ®
while refilling should be rinsed
immediately with water, or remove AdBlue ®
with a moist cloth and cold water. If AdBlue ®
has already crystallised, use a sponge and
cold water to clean the area. AdBlue ®
residue
crystallises after a certain amount of time and soils the affected surfaces.
! AdBlue ®
is not a fuel additive and must not
be added to the fuel tank. If AdBlue ®
is added
to the fuel tank, this can lead to engine dam-
age.
Have the AdBlue ®
tank refilled at a qualified
specialist workshop. However, you can also top
up the AdBlue ®
tank:
R at a filling station with an AdBlue ®
filling pump
R with AdBlue ®
refill bottles
R with an AdBlue ®
refill canister
When the pump nozzle switches off automati-
cally during filling at a filling pump, the AdBlue ®
tank has been completely filled. Do not fill the
AdBlue ®
tank any further. AdBlue ®
may leak
out.
To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the AdBlue ®
tank, if possible.
Further information on AdBlue ®
(Y page 384).
Opening/closing the AdBlue ®
filler cap The fuel filler flap is unlocked or locked auto-
matically when you open or close the vehicle
with the key or using KEYLESS-GO.
X To open:switch the ignition off.
X Press the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings open. X
Turn blue AdBlue ®
fuel filler cap ;anti-clock-
wise and remove it.
AdBlue ®
filler cap ;is secured with a plastic
strip.
X To close: fit AdBlue®
filler cap ;on the filler
neck and turn it clockwise.
X To close the fuel filler flap, press it in the
direction of arrow :.
X Drive faster than 15 km/h.
The Refill AdBlue See Owner's Manual Refill AdBlue See Owner's Manual
message goes out after approximately one
minute.
i If the
Refill AdBlue See Owner's Man‐ Refill AdBlue See Owner's Man‐
ual
ual message continues to be shown in the
multifunction display, you must top up with
more AdBlue ®
.
AdBlue ®
refill canisters !
Do not tighten the disposable hose too
firmly. The disposable hose could otherwise
be damaged and AdBlue ®
may leak out. X
Unscrew the cap from the opening on top of
AdBlue ®
refill canister ;.
X Place disposable hose :on the opening of
AdBlue ®
refill canister ;and screw it on
clockwise until hand-tight.
Disposable hose :remains closed until you
fasten disposable hose :to the AdBlue ®
filler neck of the vehicle. Refuelling
167Driving and parking Z

components. In particular, do not park on dry
grassland or harvested grain fields. G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
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 key
with you and lock the vehicle. Never leave
children unattended 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 safeguarded
against rolling away unintentionally:
R the electric parking brake must be applied.
R the transmission must be in position Pand the
key must be removed from the ignition lock
R the front wheels must be turned towards the
kerb on steep uphill or downhill gradients
R the empty vehicle must be secured at the
front axle with a wheel chock or similar
object, for example, on uphill or downhill gra- dients
R a laden vehicle must also be secured at the
rear axle with a wheel chock or similar object,
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 P.
X With the key: turn the key to position 0in the
ignition lock and remove it.
The immobiliser is activated.
X With KEYLESS-GO:
Press the Start/Stop button (Y
page 148).
The engine stops and all the indicator lamps
on the instrument cluster go out.
If you switch the engine off with the transmis-
sion in position Ror D, the automatic transmis-
sion shifts to Nautomatically.
If you then open the driver's or front-passenger door, the automatic transmission shifts to P.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing
system:
X Vehicles with a key: switch on the ignition.
X Vehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock.
X Insert the key into the ignition lock.
X Switch the ignition on.
X All vehicles: depress the brake pedal and
keep it depressed.
X Shift to neutral N.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the key in the
ignition lock.
i You can switch off the engine while the vehi-
cle is in motion by pressing and holding the
Start/Stop button for about three seconds.
This function operates independently of the
ECO start/stop automatic engine switch-off
function. Parking
169Driving and parking Z

Display messages
Possible causes/consequences and
M
MSolutions T!
÷
inoperative inoperative See
SeeOwn‐
Own‐
er's Man.
er's Man. EBD (electronic brake force distribution), ABS and ESP
®
are faulty.
Other driving and driving safety systems may also be malfunctioning. In addition, the ÷,åand! warning lamps light up in the
instrument cluster and a warning tone sounds.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you brake
hard, for example.
The steerability and braking characteristics may be severely affected. The braking distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. !
Turn on the igni‐ Turn on the igni‐
tion tion
to
torelease
release the
the
parking brake
parking brake The red
!indicator lamp lights up.
You attempted to release the electric parking brake while the ignition
was switched off.
X Key: turn the key to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition. !
Release parking Release parking
brake brake The red
!indicator lamp flashes and a warning tone sounds. A
condition for automatic release of the electric parking brake is not
fulfilled (Y page 170).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. The red
!indicator lamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking brake
(Y page 170). !
Parking brake See Parking brake See
Owner's Manual Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake lever for at least ten seconds.
X Shift the transmission to position P.
X Consult a qualified specialist workshop. Display
messages
261On-board computer and displays Z

Depending on the vehicle equipment, ensure
that when the roof carrier is fitted you can:
R raise the sliding sunroof fully
R open the panorama sliding sunroof fully
R open the tailgate fully
You will find information on the maximum roof
load in the "Technical data" section
(Y page 387).
An incorrectly secured roof carrier or roof load
may become detached from the vehicle. You
must therefore ensure that you observe the roof
carrier manufacturer's installation instructions.
Attaching the roof carrier X
Secure the roof carrier to roof rails :. In
doing so, observe the manufacturer's instal-
lation instructions. Features
Cup holders
Important safety notes G
WARNING
If you transport objects in the vehicle interior and these are not adequately secured, they
could slip or be flung around and thereby
strike vehicle occupants. In addition, cup
holders, open stowage spaces and mobile
phone brackets may not always be able to
hold the objects placed in them in the event of an accident. There is a risk of injury, particu-
larly in the event of sharp braking or sudden
changes of direction. R
Always stow objects in such a way that they
cannot be tossed about in these or similar
situations.
R Always make sure that objects do not proj-
ect from stowage spaces, luggage nets or
stowage nets.
R Ensure that closable stowage spaces are
shut before beginning your journey.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or outsize objects
in the load compartment.
Observe the loading guidelines (Y page 312).
! Only use the cup holders for containers of
the right size and which have lids. The drinks
could otherwise spill.
! Do not expose drinks bottles in the cup
holder in the centre console to continuous,
strong and direct sunlight. The passenger
compartment in the area of the centre con-
sole can otherwise be damaged by the con-
centrated and reflected sunlight.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder (Y page 321).
Otherwise, the KEYLESS-GO or KEYLESS-GO
Start function key will not be detected.
The stowage compartments in the doors provide
space for bottles with a capacity of up to 1.0 l.
The bottles are not secured or prevented from
tipping over. Therefore, do not place any open
drink containers in the stowage compartments.
Cup holders in the front centre console :
Cup holders
; Cover 320
FeaturesStowing and features

The following cause engine failure or damage
to the exhaust system:
R Use of engine oils and oil filters that have
not been expressly approved for the service
system
R Replacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
R Use of engine oil additives
! Do not add too much oil. Topping up with too
much engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off. Example: engine oil filler cap
X Turn cap :anti-clockwise and remove it.
X Top up the engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, top up with 1.0 lof engine oil.
X Replace cap :on the filler neck and turn
clockwise.
Make sure that the cap locks securely into
place.
X Check the oil level again with the oil dipstick
(Y page 334).
Further information on engine oil (Y page 385).Other service products
Important safety notes G
WARNING
Certain components in the engine compart-
ment could be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
There is a risk of injury when accessing the
engine compartment. As far as possible, allow the engine to cool
down and only touch the components descri-
bed in the following. G
WARNING
The cooling system is pressurised, particu-
larly when the engine is warm. If you open the cap, you could be scalded if hot coolant
sprays out. There is a risk of injury.
Let the engine cool down before you open the
cap. Wear gloves and eye protection. Open
the cap slowly to release the pressure. G
WARNING
If windscreen washer concentrate comes into contact with hot components of the engine or
the exhaust system, it can ignite. There is a
risk of fire and injury.
Make sure the windscreen washer concen-
trate does not come into contact with the filler neck.
Checking the coolant level X
Park the vehicle on a level surface.
Check the coolant level only if the vehicle is
on a level surface and the engine has cooled
down.
X Turn the key to position 2in the ignition lock
(Y page 148).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (Y page 150).
X Check the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
70 †. Engine compartment
335Maintenance and care Z

X
Turn the key to position 0in the ignition lock
(Y page 148).
X On vehicles with KEYLESS-GO, press the
Start/Stop button (Y page 150).
X Press the Start/Stop button (Y page 150).
X Slowly turn cap :half a turn anti-clockwise
and allow excess pressure to escape.
X Turn cap :further anti-clockwise and
remove it.
If the coolant is at the level of marker bar =
in the filler neck when cold, there is enough
coolant in coolant expansion tank ;.
If the coolant level is approximately 1.5 cm
above marker bar =in the filler neck when
warm, there is enough coolant in coolant
expansion tank ;.
X If necessary, top up with coolant that has
been tested and approved by Mercedes-Benz.
X Replace cap :and turn it clockwise as far as
it will go.
Further information on coolant (Y page 386).
Topping up the windscreen washer sys- tem/headlamp cleaning system Example: washer fluid reservoir
X To open: pull cap:upwards by the tab.
X Top up with the premixed washer fluid.
X To close: press cap :onto the filler neck
until it engages.
If the washer fluid level drops below the recom- mended minimum of 1 litre, a message appears in the multifunction display prompting you to
top up the washer fluid (Y page 289).
Further information on windscreen washer fluid
(Y page 387). ASSYST PLUS
Service message
The ASSYST PLUS service interval display
informs you of the next service due date.
Information on the type of service and service
intervals (see the separate Service Booklet).
You can obtain further information from a
Mercedes-Benz Service Centre.
i The ASSYST PLUS service interval display
does not show any information on the engine oil level. Observe the notes on the engine oil
level (Y page 334).
The multifunction display shows a service mes-
sage for a few seconds, e.g.:
R Service A in .. days Service A in .. days
R Service A due
Service A due
R Service A overdue by .. days
Service A overdue by .. days
Depending on the operating conditions of the
vehicle, the remaining time or distance until the
next service due date is displayed.
The letter indicates which service is due. A A
stands for a minor service and B
Bfor a major ser-
vice. A number or another letter may be dis-
played after the letter.
Only for certain countries: the position after the letter A
A or B
Bindicates any necessary additional
maintenance work to be performed. If you notify
a qualified specialist workshop of this display,
you will receive a statement on the associated
costs.
The ASSYST PLUS service interval display does
not take into account any periods of time during which the battery is disconnected.
Maintaining the time-dependent service sched-
ule:
X Note down the service due date displayed in
the multifunction display before disconnect-
ing the battery.
or
X After reconnecting the battery, subtract the
battery disconnection periods from the ser-
vice date shown on the display. Hiding service messages
X Press the %ora button on the steering
wheel. 336
ASSYST PLUSMaintenance and care

Washing the vehicle and cleaning the
paintwork
Automatic car wash G
WARNING
Braking efficiency is reduced after the vehicle has been washed. There is a risk of an acci-
dent.
After washing the vehicle, brake carefully
while paying attention to the traffic conditions in order to restore full braking efficiency.
! Before driving into an automatic car wash,
make sure that it is suitable for the dimen-
sions of the vehicle. In particular, make sure
that:
R there is enough ground clearance between
the vehicle underbody and the guide rails of the automatic car wash.
R the clearance width of the automatic car
wash is sufficient, particularly the width of
the guide rails
R you enter the automatic car wash straight
and in the centre of the guide rails in order
to avoid damaging the tyres or wheel rims.
Fold in the exterior mirrors before the vehicle is washed. The exterior mirrors could other-
wise be damaged.
! When DISTRONIC PLUS or the HOLD func-
tion is activated, the vehicle brakes automat- ically in certain situations.
To avoid damage to the vehicle, deactivate
DISTRONIC PLUS and the HOLD function in
the following or similar situations:
R when towing away
R in a car wash
! Make sure that:
R the side windows and sliding sunroof are
closed completely.
R the blower for the ventilation/heating is
switched off (OFF button is depressed).
R the windscreen wiper switch is at position
0.
The vehicle could otherwise be damaged.
! In car washes with a towing mechanism,
make sure that the automatic transmission is in transmission position N, otherwise the
vehicle could be damaged. R
Vehicles with a key:
do not remove the key from the ignition
lock. Do not open the driver's door or front-
passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position Pauto-
matically and locks the wheels. You can
prevent this by shifting the automatic trans- mission to Nbeforehand.
R Vehicles with KEYLESS-GO:
do not open the driver's door or front-
passenger door when the engine is
switched off. Otherwise, the automatic
transmission selects park position Pauto-
matically and locks the wheels.
Observe the following to make sure that the
automatic transmission stays in position N:
X Make sure the vehicle is stationary and the
ignition is switched off.
X Turn the key to position 2in the ignition lock
(Y page 148).
Use the key instead of the Start/Stop button on vehicles with KEYLESS-GO.
X Depress the brake pedal and keep it
depressed.
X Shift the automatic transmission to position
N.
X Release the brake pedal.
X Release the electric parking brake.
X Switch off the ignition and leave the key in the
ignition lock.
You can wash the vehicle in an automatic car
wash from the very start.
If the vehicle is very dirty, wash off excess dirt
before cleaning the vehicle in an automatic car
wash.
After using an automatic car wash, wipe off the
wax from the windscreen and the windscreen
wiper blades. This will prevent smears and
reduce wiping noises caused by residue on the
windscreen.
Washing by hand In some countries, washing by hand is only
allowed at specially equipped washing bays.
Observe the legal requirements for each indi-
vidual country.
X Do not use hot water and do not wash the
vehicle in direct sunlight.
X Use a soft sponge to clean. 338
CareMaintenance and care