2018 MERCEDES-BENZ GLS SUV oil level

Display message ............................ 261
ECO start/stop function ................ 144
Engine number ............................... 386
Irregular running ............................ 146
Jump-starting ................................. 346
Starting (important safety notes) ... 141
Starting problems .......................... 146
Starting the engine with the
SmartKey ....................................... 142
Starting via smartphone ................ 142
Starting with KEYLESS-GO ............. 142
Switching off .................................. 162
Tow-starting (vehicle) ..................... 352
Engine electronics
Problem (malfunction) ................... 146
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 327
Additives ........................................ 390
Checking the oil level ..................... 326
Checking the oil level using the
dipstick .......................................... 327
Display message ............................ 263
Filling capacity ............................... 390
Notes about oil grades ................... 389
Notes on oil level/consumption .... 326
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 245
Engine switch-off
see ECO start/stop function
Entering an address
see also Digital Operator's Man-
ual .................................................. 292
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 246
Characteristics ................................. 70
Deactivating/activating ................... 71
Display message ............................ 249
Function/notes ................................ 69
General notes .................................. 69
Important safety information ........... 70
Warning lamp ................................. 284
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 70
Exhaust check ................................... 165 Exhaust pipe (cleaning instruc-
tions)
.................................................. 334
Exterior lighting
see Lights
Exterior mirrors
Adjusting ....................................... 110
Dipping (automatic) ....................... 112
Folding in whe
n locking (on-board
computer) ...................................... 245
Folding in/out (automatically) ....... 111
Folding in/out (electrically) ........... 111
Out of position (troubleshooting) ... 112
Setting ........................................... 111
Storing settings (memory func-
tion) ............................................... 113
Storing the parking position .......... 112
Eyeglasses compartment ................. 302
F
Favorites
Overview ........................................ 294
Filler cap
see Refueling
Flat tire
MOExtended tires .......................... 340
Preparing the vehicle ..................... 339
TIREFIT kit ...................................... 341
see Emergency spare wheel
Floormats ........................................... 324
Fog lamps (extended range) ............. 118
Folding the rear bench seat for-
wards/back ....................................... 303
Fording
Off-road ......................................... 169
On flooded roads ........................... 168
Frequencies
Mobile phone ................................. 384
Two-way radio ................................ 384
Fuel
Additives ........................................ 388
Consumption statistics .................. 236
Displaying the current consump-
tion ................................................ 237
Displaying the range ...................... 237
Driving tips .................................... 164
Fuel gauge ....................................... 37
Grade (gasoline) ............................ 387
Index11

For more information on driving with summer
tires, see (Ypage 356).
Observe the notes in the "Changing a wheel"
section (
Ypage 374).
Off-road driving
Important safety notes
GWARNING
If you drive on a steep incline at an angle or
turn when driving on an incline, the vehicle
could slip sideways, tip and rollover. There is a risk of an accident.
Always drive on a steep incline in the line of
fall (straight up or down) and do not turn the
vehicle.
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
GWARNING
If the vehicle level is high, the vehicle center of gravity is raised. This could cause the vehicle
to tip over more easily on uphill or downhill
gradients. There is a risk of an accident.
Select the lowest possible vehicle level.
!There is a risk of damage to the vehicle if:
Rthe vehicle becomes stuck, e.g. on a high
curb or an unpaved road
Ryou drive too fast over an obstacle, e.g. a
curb, a speed bump or a pothole in the road
Ra heavy object strikes the underbody or
parts of the chassis
In situations like this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible. Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the loads they are designed
to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust
system, they can catch fire.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If on continuing your jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult a qualified spe-
cialist wor kshop.
W

hen driving off-road, substances such as sand,
mud and water or water mixed with oil may get
into the brakes. This could result in a reduced
braking effect or in total brake failure and also in
increased wear and tear. The braking charac-
teristics change depending on the material
entering the brakes. Clean the brakes after driv-
ing off-road. If you detect a reduced braking
effect or grinding noises, have the brake system checked in a qualified specialist workshop as
soon as possible. Adapt your driving style to the
different braking characteristics.
Driving off-road increases the likelihood of dam-
age to the vehicle, which, in turn, can lead to
failure of the mechanical assembly or systems.
Adapt your driving style to suit the terrain con-
ditions. Drive carefully. Have damage to the
vehicle rectified immediately at a qualified spe-
cialist workshop.
Do not switch to transmission position Nwhen
driving off-road. If you try to brake the vehicle
using the service brake, you could lose control
of the vehicle. If the gradient is too steep for your
vehicle, drive back down in reverse gear.
General notes
HEnvironmental note
Protection of the environment is of primary
importance. Treat nature with respect.
Observe all prohibiting signs.
Read this section carefully before driving your
vehicle off-road. Practice by driving over more
gentle off-road terrain first.
170Driving tips
Driving and parking

Familiarize yourself with the characteristics of
your vehicle and the gear shift operation before
driving through difficult terrain.
The following driving systems are specially
adapted to off-road driving:
RtheOff-road drive program (vehicles without
Off-Road Engineering package)
(
Ypage 219)
ROff-road andOff-road Plus drive programs
(vehicles with Off-Road Engineering package)
(
Ypage 220)
RLOW RANGE off-road gear (vehicles with the
Off-Road Engineering package)
(
Ypage 221)
RDifferential lock (vehicles with the Off-Road
Engineering package) (Ypage 221)
ROff-road ABS (Ypage 67)
ROff-road 4ETS (Ypage 70)
ROff-road ESP®(Ypage 71)
RAIRMATIC package (vehicle level)
(Ypage 188)
RDSR (Downhill Speed Regulation)
(Ypage 218)
Observe the following notes:
RStop the vehicle before starting to drive along
an off-road route. If necessary, select the off- road program (
Ypage 220) or shift to the
LOW RANGE off-road gear (Ypage 221).
RSelect a vehicle level that is suitable for the
terrain. To avoid damaging the vehicle, make
sure there is always sufficient ground clear-
ance.
RCheck that items of cargo and loads are
stowed safely and are well secured
(
Ypage 305).
RAlways keep the engine running and in gear
when driving on a downhill gradient. Activate
DSR (
Ypage 218).
RAlways keep the engine running and in gear
when driving down an incline.
RAdapt your speed to the terrain. The rougher,
steeper or more ruts on the terrain, the slower
your speed should be.
RDo not jump with the vehicle as this will inter- rupt the vehicle's propulsion.
RDrive with extreme care on unfamiliar off-road
routes where visibility is poor. For safety rea-
sons, get out of the vehicle first and survey
the off-road route.
RLook out for obstacles, such as rocks, holes,
tree stumps and furrows.
RTake care when turning on an uphill or down-hill slope or when driving across a slope. The
vehicle could otherwise tip over.
RAlways keep the doors, the tailgate, the side
windows and the sliding sunroof closed whilethe vehicle is in motion.
RDo not shift the automatic transmission to
position i.
RObserve the notes on off-road fording
(Ypage 169).
iInformation about retrofitting special all-ter-
rain tires is available from any qualified spe-
cialist workshop.
iDo not use the HOLD function when driving
off-road, on steep uphill or downhill gradients
or on slippery or loose surfaces. The HOLD
function cannot hold the vehicle on such sur-
faces.
Checklist before driving off-road
!If the engine oil warning lamp lights up while
the vehicle is in motion, stop the vehicle in a
safe place as soon as possible. Check the
engine oil level. The engine oil warning lamp
warning must not be ignored. Continuing the
journey while the symbol is displayed could
lead to engine damage.
XEngine oil level: check the engine oil level
and add oil if necessary.
When driving on steep gradients, the engine
oil level must be sufficiently high to ensure a
correct oil supply in the vehicle.
XDEF tank (BlueTEC vehicles): check the
level and add if necessary (Ypage 158).
XTire-changing tool kit: check that the jack is
working and make sure you have the lug
wrench, a robust tow cable and a folding
spade in the vehicle.
XWheels and tires: check the tread depth and
pressure of the tires.
XCheck for damage and remove any foreign
objects, e.g. small stones, from the wheels/
tires.
XReplace any missing valve caps.
XReplace dented or damaged wheels.
XRims: dented or bent rims can result in a loss
of tire pressure and damage the tire bead.
Driving tips171
Driving and parking
Z

Display messagesPossible causes/consequences andMSolutions
#
StopVehicl eSeeOperator' sManual
The battery is no longer bein gcharged and th econdition of charg eis
to olow.
A warning tone also sounds.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XObserv eth einstruction sin th e# See Operator' sManualdisplay message .
XConsultaqualified specialist workshop .
4
CheckEngineOilAtNextRefueling
The engin eoil level has dropped to th eminimum level.
A warning tone also sounds.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 327).
XIf necessary, add engin eoil (Ypage 327).
If th eengin eoil need stoppin gup mor eoften:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http://bevo.mercedes -
benz.com.
4
Check Engine OilLevel (Ad d 1quart)
Mercedes-AMG vehicles: th eengin eoil level is to olow.
!Avoid lon gjourneys wit hto olittl eengin eoil. The engin ewill oth-
erwise be damaged.
XChec kth eoil level when next refueling, at th elatest (Ypage 327).
XIf necessary, add engin eoil (Ypage 327).
If th eengin eoil need stoppin gup mor eoften:
XContac t aqualified specialist workshop and hav eth eengin e
checked.
Information on approve dengin eoils can be obtained from any quali-
fie dspecialist workshop or on th eInternet at http://bevo.mercedes -
benz.com.
4
Engine Oil LevelLow Sto pVehicl eTurnEngine Off
Mercedes-AMG vehicles: th eengin eoil level is to olow.
There is aris kof engin edamage.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 161).
XCheckth eengin eoil level (Ypage 327).
XIf necessary, add engin eoil (Ypage 327).
8
Fue lLevel Low
The fuel level has dropped int oth ereserv erange.
XRefue lat th eneares tgas station .
Display messages263
On-board computer and displays
Z

When checking the oil level:
Rpark the vehicle on a level surface.
Rthe engine should be switched off for approx-
imately five minutes if the engine is at normal
operating temperature.
Rif the engine is not at normal operating tem-
perature, e.g. if the engine was only started
briefly, wait about 30 minutes before carrying
out the measurement.
Checking the oil level using the oil dip-
stick
Example: vehicles with a gasoline engine
Example: vehicles with a diesel engine
XPull oil dipstick :out of the dipstick tube.
XWipe off oil dipstick :.
XSlowly slide oil dipstick :into the guide tube
to the stop, and take it out again.
If the level is between MIN mark =and MAX
mark ;, the oil level is correct.
XIf the oil level has dropped to MIN mark =or
below, add 1.1 US qt (1.0 liter) engine oil.
Adding engine oil
HEnvironmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful to
the environment.
!Use only engine oils and oil filters that are
approved for vehicles with a service system. A list of the engine oils and oil filters that have
been tested and approved in accordance with
Mercedes-Benz Specifications for Service
Products is available at any authorized
Mercedes-Benz Center.
The following cause engine failure or damage
to the exhaust system:
RUse of engine oils and oil filters that have
not been expressly approved for the service
system
RReplacement of engine oil and oil filter after
the replacement interval specified by the
service system has expired
RUse of engine oil additives
!Do not add too much oil. adding 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 cap
XTurn cap :counter-clockwise and remove it.
XAdd engine oil.
If the oil level is at or below the MIN mark on
the oil dipstick, add 1.1 US qt (1.0 liter) of
engine oil.
XReplace cap :on the filler neck and tighten
clockwise.
Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick
(Ypage 327).
Engine compartment327
Maintenance and care
Z

Further information on engine oil (Ypage 389).
Additional service products
Important safety notes
GWARNING
Certain components in the engine compart-
ment, such as the engine, radiator and parts
of the exhaust system, can become very hot.
Working in the engine compartment poses a
risk of injury.
Where possible, let the engine cool down and touch only the components described in the
following.
GWARNING
The cooling system is pressurized, particularly
when the motor 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. Slowly
open the cap to relieve pressure.
The coolant level may only be checked and cool-
ant refilled when the engine and engine cooling
system have cooled down.
GWARNING
Windshield washer concentrate could ignite if it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
Checking coolant level
XPark the vehicle on a level surface.
Only check the coolant level when the vehicleis on a level surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 140).
On vehicles with KEYLESS-GO, press the
Start/Stop button twice (
Ypage 142).
XCheck the coolant temperature gauge in the
multifunction display.
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position in the ignition
lock u(Ypage 140).
XOn vehicles with KEYLESS-GO, press the
Start/Stop button (Ypage 142).
XPress the Start/Stop button (Ypage 142).
XSlowly turn cap :half a turn counter-clock-
wise and allow excess pressure to escape.
XTurn cap :further counter-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 0.6 in
(1.5 cm) above marker bar =in the filler neck
when warm, there is enough coolant in expan-
sion tank ;.
XIf necessary, add coolant that has been tested
and approved by Mercedes-Benz.
XReplace cap :and turn it clockwise as far as
it will go.
For further information on coolant, see
(
Ypage 390).
328Engine compartment
Maintenance and care

Adding washer fluid to the windshield
washer system
Example: washer fluidreservoir
XTo open :pull cap :upwards by th etab .
XAddth epremixed washer fluid .
XTo close:press cap :onto th efiller neck
until it engages.
If th ewasher fluid level drops belo wtherecom-
mended minimum of 1liter, amessage appear s
in th emultifunction display prompting you to
add washer fluid (
Ypage 278).
Further information on windshield washer fluid
(
Ypage 391).
ASSYST PLUS
Service message
i
If th escheduled servic eintervals are excee-
ded, this may result in damag eto th evehicle.
You can obtain up-to-date information concern -
ing th eservicing of your vehicl efrom aqualified
specialis tworkshop ,e.g. an authorize d
Mercedes-Benz Cente ror at
http://www.mbusa.co m(US Aonly).
iThe ASSYS TPLU Sservic einterval display
does no tsho wany information on th eengin e
oil level. Observ eth enote son th eengin eoil
level (
Ypage 326).
The multifunction display shows aservic emes -
sage for several seconds, e.g. :
RService Ain .. Day s
RService ADue
RServic e AExceeded by .. Day s
Dependingon th eoperating condition sof th e
vehicle, th eremaining time or distanc euntil th e
next servic edue dat eis displayed. The lette
rA
or B,possibl yin connection wit h a
number or another letter, shows th etyp eof ser -
vice. A
stand sfor aminor servic eand Bfora
major service.
Further information can be obtained at aquali-
fie dspecialist workshop .
The ASSYS TPLU Sservic einterval display does
no ttak eint oaccoun tany periods of time during
whic hth ebattery is disconnected.
Maintainin gth etime-dependen tservic esched-
ule:
XNot edown th eservic edue dat edisplayed in
th emultifunction display before disconnect -
ing th ebattery.
or
XAfte rreconnecting th ebattery, subtrac tth e
battery disconnection periods from th eser -
vic edat eshown on th edisplay.
Hiding a service message
XPress th e% ora buttonon th esteering
wheel.
Displaying service messages
XSwitc hon th eignition .
XPress th e= or; buttonon th esteering
whee lto select th eServ.menu.
XPress th e9 or: buttonto select th e
ASSYSTPLU Ssubmen uand confirm by press-
ing th ea button.
The servic edue dat eappear sin th emulti-
function display.
Infor mation about Service
Resetting the ASSYST PLUS service
interval display
!If th eASSYS TPLU Sservic einterval display
has been inadvertentl yreset ,this setting can
be correcte dat aqualified specialist work-
shop.
Hav eservic ewor kcarrie dout as described in
th eMaintenance Booklet .This may otherwise
lead to increased wear and damag eto th e
major assemblies or th evehicle.
ASSYST PLUS329
Maintenance and care
Z

be required earlier. Do not change the direction
of wheel rotation.
Clean the contact surfaces of the wheel and the
brake disc thoroughly every time a wheel is rota-ted. Check the tire pressure and, if necessary,
restart the tire pressure loss warning system or
the tire pressure monitor (
Ypage 361).
Direction of rotation
Tires with a specified direction of rotation have
additional benefits, e.g. if there is a risk of hydro-
planing. These advantages can only be gained if
the tires are installed corresponding to the
direction of rotation.
An arrow on the sidewall of the tire indicates its
correct direction of rotation.
Storing wheels
Store wheels that are not being used in a cool,
dry and preferably dark place. Protect the tires
from oil, grease, gasoline and diesel.
Mounting a wheel
Preparing the vehicle
XVehicle with emergency spare wheel:
when mounting the emergency spare wheel in
the event of a flat tire, follow the additional
notes on vehicle preparation under "Flat tire"
(
Ypage 339).
XStop the vehicle on solid, non-slippery and
level ground.
XApply the electric parking brake manually.
XBring the front wheels into the straight-ahead
position.
XVehicles with automatic transmission:
shift the transmission to position j.
XVehicles with the AIRMATIC package:
make sure that the normal vehicle level is
selected (
Ypage 190).
XVehicles with the Off-Road Engineering
package:make sure that the normal level is
selected (
Ypage 184).
XSwitch off the engine.
XVehicles without KEYLESS-GO: remove the
SmartKey from the ignition lock.
XVehicles with KEYLESS-GO: open the driv-
er's door.
The vehicle electronics are now in position
u. This means no SmartKey is in the ignition
lock.
XVehicles with KEYLESS-GO: remove the
Start/Stop button from the ignition lock
(
Ypage 140).
XIf included in the vehicle equipment, remove
the tire-change tool kit from the vehicle.
XSafeguard the vehicle against rolling away.
iApart from certain country-specific varia-
tions, vehicles are not equipped with a tire-
change tool kit. For more information on
which tools are required to perform a wheel
change on your vehicle, consult a qualified
specialist workshop.
Necessary tire-changing tools can include, for
example:
RJack
RWheel chock
RLug wrench
Securing the vehicle to prevent it from
rolling away
If your vehicle is equipped with a wheel chock, it can be found in the tire-change tool kit
(
Ypage 339).
The folding wheel chock is an additional safety
measure to prevent the vehicle from rolling
away, for example when changing a wheel.
XFold both plates upwards :.
XFold out lower plate;.
XGuide the lugs on the lower plate fully into the
openings in base plate =.
Changing a wheel375
Wheels and tires
Z