2017 MERCEDES-BENZ GLC SUV open gas tank

Front wheel arch coverInstalling/removing ...................... .117
Fuel
Additives ........................................ 366
Consumption statistics .................. 213
Displaying the current consump-
tion ................................................ 213
Displaying the range ......................2 13
Driving tips ....................................1 57
E10 ................................................ 365
Fuel gauge ....................................... 36
Gasoline ......................................... 365
Grade (gasoline) ............................ 365
Important safety notes .................. 365
Low outside temperatures ............. 367
Problem (malfunction) ................... 151
Quality (diesel) ............................... 366
Refueling ........................................ 148
Tank content/reserve fuel ............. 365
Fuel filler flap
Closing ........................................... 150
Fuel filter (display message) ............ 243
Fuel level
Calling up the range (on-board
computer) ...................................... 213
Fuel tank
Capacity ........................................ 365
Problem (malfunction) ................... 151
Fuses
Allocation chart ............................. 334
Before changing ............................. 333
Dashboard fuse box ....................... 334
Fuse box in the cargo compart-
ment .............................................. 334
Fuse box in the engine compart-
ment .............................................. 334
Fuse box in the front-passenger
footwell .......................................... 334
Important safety notes .................. 333
G
G-Meter (on-board computer,
Mercedes-AMG vehicles) .................. 224
Garage door opener
Clearing the memory ..................... 305
General notes ................................ 302
Important safety notes .................. 302 Opening/closing the garage doo
r..3 04
Problems when programming ........3 04
Programming (button in the rear-
view mirror) ................................... 303
Synchronizing the rolling code ....... 303
Gasoline ............................................. 365
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 224
Genuine parts ...................................... 27
Glove box ...........................................2 79
Google™ Local Search
see also Digital Operator's Man-
ual ..................................................2 68
H
HANDS-FREE ACCESS.......................... 87
Handwriting recognition
Switching text reader function
on/off ............................................ 271
Touchpad ....................................... 270
Hazard warning lamps ......................113
Head restraints
Adjusting (electrically) ................... 101
Adjusting (manually) ......................1 01
Adjusting (rear) .............................. 101
Adjusting the fore-and-aft posi-
tion manually ................................. 101
General notes ................................ 101
Important safety notes .................. 100
Installing/removing (rear) .............. 102
Head-up display
Adjusting the brightness ................ 222
Displays and operating .................. 211
Function/notes .............................2 11
Important safety notes .................. 211
Selecting displays .......................... 222
Setting the position ....................... 222
Storing settings (memory func-
tion) ............................................... 109
Headlamps
Display message ............................ 239
Fogging up ..................................... 114
see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 12
12Index

clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
GWARNING
Electrostatic buildup can create sparks and
ignite fuel vapors. There is a risk of fire and
explosion.
Always touch the vehicle body before opening
the fuel filler flap or touching the fuel pump
nozzle. Any existing electrostatic buildup is
thereby discharged.
Do not get into the vehicle again during the refu-
eling process. otherwise electrostatic charge
could build up again.
GWARNING
Vehicles with a diesel engine:
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
!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.
!Do not use gasoline to refuel vehicles with a
diesel 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. The repair costs are high. 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 from
the fuel can.
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
(
Ypage 364).
Refueling
General information
Pay attention to the important safety notes
(Ypage 148).
If you unlock/lock the vehicle from the outside,
the fuel filler flap also unlocks/locks.
The position of the fuel filler cap is displayed in
the instrument cluster 8. The arrow next to
the filling pump indicates the side of the vehicle.
Opening the fuel filler flap
:To open the fuel filler flap
;To insert the fuel filler cap
=Tire pressure table
?Instruction label for fuel type to be refueled
Refueling149
Driving and parking
Z

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The vehicle electronics are now in positionu. This is the same as
the key having been removed.
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
The engine does not
start.The fuel tank of a vehicle with a diesel engine has been run completely
dry.
XRefuel the vehicle with at least 5.3 US qt (5 l) of diesel.
XTurn the ignition on for approximately ten seconds (Ypage 132).
XStart the engine continuously for up to ten seconds until it runs
smoothly.
If the engine does not start:
XTurn the ignition on again for approximately ten seconds
(Ypage 132).
XStart the engine again continuously for up to ten seconds until it
runs smoothly.
If the engine does not start after three attempts:
XConsult a qualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 77).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 79).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult a qualified specialist workshop.
DEF (BlueTEC vehicles only)
General notes
To function properly, BlueTEC exhaust gas after-
treatment must be operated with the reducing
agent DEF. When the DEF supply drops to a minimum, the
Check Additive See Owner's Manual
mes-
sage is shown in the multifunction display.
If you drive the vehicle faster than 10 mph
(16 km/h) after topping up, the Check Addi‐
tiveSeeOwner'sManualmessage goes out
after approximately one minute.
Refueling151
Driving and parking
Z

When the DEF supply drops to a minimum, the
Remaining Starts: 16message is shown in
the multifunction display.
The Remaining Starts: 16
message in the
multifunction display indicates how many more
times you can start the vehicle. If DEF is not
refilled, you will subsequently be unable to
start the engine.
If the 10 starts display message is shown and a
warning tone also sounds, then the DEF system
is malfunctioning. Have the DEF system
checked at a qualified specialist workshop.
XAdd at least 1.3 gal (5.0 l) of DEF.
XSwitch on the ignition for at least 60 seconds.
XStart the engine.
iHave the DEF tank refilled at a qualified spe-
cialist workshop.
Use the special DEF refill bottle when adding
DEF between maintenance intervals. Contact an
authorized Mercedes-Benz Center with any
questions or, if necessary, contact Roadside
Assistance (
Ypage 29).
If the outside temperature is below 12 ‡(Ò11 †)
it may be difficult to top up. If DEF is frozen and
there is an active warning indicator, it may not
be possible to add DEF. Park the vehicle in a
warmer place, e.g. in a garage, until DEF has
become fluid again. It will then be possible to
add DEF again. Alternatively, have the DEF tank
refilled at a qualified specialist workshop.
Further information about BlueTEC exhaust gas aftertreatment and DEF is available at any
authorized Mercedes-Benz Center.
Important safety notes
DEF is a water-soluble fluid for the exhaust gas
aftertreatment of diesel engines. It is:
Rnot poisonous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and
throat. Coughing and watering of the eyes are
possible.
Do not inhale ammonia vapors. Fill the DEF tank
only in well-ventilated areas. DEF must not come into contact with your skin,
eyes or clothing and must not be swallowed.
Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the following:
RRinse DEF from your skin immediately with
soap and water.
RIf DEF comes into contact with your eyes,
immediately rinse them thoroughly with clean
water. Seek medical assistance without
delay.
RIf DEF has been swallowed, rinse your mouth
out immediately. Drink plenty of water. Seek
medical assistance without delay.
RChange out of clothing contaminated with
DEF immediately.
!Only use DEF in accordance with
ISO 22241. Do not mix any additives with
DEF, and do not dilute DEF with water. This
may destroy the BlueTEC exhaust gas after-
treatment system.
!The vehicle must be parked on level ground
to fill the DEF tank. The DEF tank can only be
filled as intended with the vehicle parked on a
level surface. This avoids false level readings. Filling the tank is not permitted if the vehicle
is not parked on a level surface. There is a
danger of overfil
ling, which could result in
damage to components of the BlueTEC
exhaust gas aftertreatment.
!Rinse surfaces that have come into contact
with DEF immediately with water or remove
DEF using a damp cloth and cold water. If the
DEF has already crystallized, use a sponge
and cold water to clean it. DEF residues crys-
tallize after time and contaminate the affec-
ted surfaces.
!DEF is not a fuel additive and must not be
added to the fuel tank. If DEF is added to the
fuel tank, this can lead to engine damage.
Have the DEF tank refilled at a qualified special-
ist workshop. However, you can also refill the
DEF tank:
Rat a gas station with a DEF filling pump
Rwith DEF refill bottles
Rwith a DEF refill canister
When the pump nozzle switches off automati-
cally during filling at a filling pump, the DEF tank
has been completely filled. Do not fill the DEF
tank any further. DEF may leak out.
152Refueling
Driving and parking

To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the DEF tank, ifpossible.
For further information on DEF, see
(
Ypage 367).
Opening/closing the DEF filler cap
XTo open: switch the ignition off.
XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn blue DEF filler cap ;counter-clockwise
and remove it.
DEF filler cap ;is secured with a plastic
strip.
XTo close: place DEF filler cap ;on the filler
neck and turn it clockwise.
XTo close the fuel filler flap, press it in the
direction of arrow :.
XDrive faster than 10 mph (16 km/h).
TheRefillAdBlueSeeOperator’sMan‐ualmessage goes out after approximately
one minute.
If the Refill AdBlue See Operator’s Man‐
ualmessage continues to be shown in the mul-
tifunction display, you must add more DEF.
iThe fuel filler flap is unlocked or locked
automatically when you unlock or lock the
vehicle.
DEF refill canisters
!Do not screw the disposable hose on too
tight. The disposable hose could otherwise be damaged and DEF may leak out.
XUnscrew the cap from the opening on top of
DEF refill canister ;.
XPlace disposable hose :on the opening of
DEF refill canister ;and screw it on clock-
wise until hand-tight.
Disposable hose :remains closed until you
fasten disposable hose :to the DEF filler
neck of the vehicle.
XPlace disposable hose :on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose :is sufficiently secured.
XLift up and tip DEF refill canister ;.
Filling stops when the DEF tank is completely
filled. Do not fill the DEF tank any further. DEF
refill canister ;can be removed when it has
been only partially emptied.
XTurn disposable hose :on the filler neck of
the vehicle counter-clockwise and remove it.
XTurn disposable hose :on the opening of
DEF refill canister ;counter-clockwise and
remove it.
XReseal DEF refill canister ;with the cap.
DEF refill canisters are available at many gas
stations or at a qualified specialist workshop.
DEF refill canisters are often sold with a filler
hose. A filler hose that does not exactly fit the
vehicle's DEF tank offers no protection against
Refueling153
Driving and parking
Z

Where possible, let the engine cool down andtouch only the components described in the
following.
GWARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There is a risk of injury.
If you need to do any work inside the engine
compartment:
Rswitch off the ignition
Rnever reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
Rremove jewelry and watches
Rkeep items of clothing and hair, for exam-
ple, away from moving parts
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.
GWARNING
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.
Checking coolant level
Checking the coolant level (example)
XPark the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
XTurn the SmartKey to position 2in the igni-
tion lock (Ypage 132).
or
XPress the Start/Stop button twice on vehicles
with KEYLESS-GO or the KEYLESS-GO start
function (
Ypage 133).
XCheck the coolant temperature display in the
instrument cluster (Ypage 36).
The coolant temperature must be below
158 ‡ (70 †).
XTurn the SmartKey to position gin the igni-
tion lock (Ypage 132).
or
XPress the Start/Stop button once on vehicles with KEYLESS-GO or the KEYLESS-GO start
function (
Ypage 133).
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 368).
Engine compartment309
Maintenance and care
Z

Components and service products must match.
Onlyuse products recommended byMercedes-
Benz. Damage whichis caused bythe use of
products which have not been recommended is
not covered bythe Mercedes-Benz warranty or
goodwill gestures. Products approved by
Mercedes-Benz are listed inthis Operator's
Manual inthe appropriate section.
In formation on tested and approved products
can beobtained at a Mercedes-Benz Service
Center or on the Internet at
http:/ /bevo.mercedes-benz.co m.
You can recognize service products approved by
Mercedes-Benz by the following inscription on
the containers:
RMB-Freigabe (e.g. MB-Freigabe 229.51)
RMB-Approval (e.g. MB-Approval 229.51)
Other designations or recommendations indi-
cate a level of quality or a specification in
accordance with an MB Sheet Number (e.g. MB 229.5). They have not necessarily been
approved by Mercedes-Benz.
Other identifications, for example:
R0 W-30
R5 W-30
R5 W-40
Fuel
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
and that it is not swallowed. Do not inhale fuel
vapors. Keep fuel away from children.
If you or others come into contact with fuel,
observe the following:
RWash away fuel from skin immediately
using soap and water.
RIf fuel comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf fuel is swallowed, seek medical assis-
tance without delay. Do not induce vomit-
ing.
RImmediately change out of clothing which
has come into contact with fuel.
Tank capacity
ModelTotal capacity
GLC 300 d 4MATIC13.2 US gal (50.0 l)
All other models17.4 US gal(66.0 l)
ModelOf whichreserve
All modelsApprox.
1.8 US gal (7.0 l)
Gasoline
Fuel grade
!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.
!Only refuel using unleaded premium grade
gasoline with at least 91 AKI/95 RON.
iE10 fuel contains up to 10% bioethanol.
Your vehicle is E10-compatible. You can
refuel your vehicle using E10 fuel.
Service products and filling capacities365
Technical data
Z

You will usually find information about the fuel
quality on the pump. If you cannot find the label
on the fuel pump, ask the gas station staff.
Information on refueling (
Ypage 149).
Low outside temperatures
iDiesel fuel with improved cold flow proper-
ties is available during the winter months.
Further information about fuel properties can
be obtained from oil companies, e.g. at gas
stations.
DEF
Important safety notes
Comply with the important safety notes for ser-
vice products when handling DEF (Ypage 364).
DEF is a water-soluble fluid for the exhaust gas
aftertreatment of diesel engines. It is:
Rnot poisonous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released.
Ammonia vapors have a pungent odor and are
particularly irritating to the skin, to mucous
membranes and to the eyes. You may experi-
ence a burning sensation in your eyes, nose and
throat. Coughing and watering of the eyes are
possible.
Do not inhale ammonia vapors. Fill the DEF tank only in well-ventilated areas.
Low outside temperatures
DEF freezes at a temperature of approximately
-11 †. The vehicle is delivered from the factory
equipped with a DEF preheating system. Winter
operation can thus be guaranteed even at tem-
peratures below -11 †.
Additives
!Only use DEF in accordance with ISO
22241. Do not use additives with DEF and do
not dilute DEF with water. This may destroy
the BlueTEC exhaust gas aftertreatment sys-
tem.
Purity
!Impurities in DEF (e.g. due to other service
products, cleaning agents or dust) lead to:
Rincreased emission values
Rdamage to the catalytic converter
Rengine damage
Rmalfunctions in the BlueTEC exhaust gas
aftertreatment system
Assuring the purity of DEF is particularly impor- tant with respect to avoiding malfunctions in the
BlueTEC exhaust gas aftertreatment system.
If DEF is pumped out of the DEF tank, e.g. during
repair work, it must not be returned to the tank.
The purity of the fluid can no longer be guaran-
teed.
Filling capacities
ModelTotal capacity
All models29.1 US qt (27.5 l)
Engine oil
General notes
!Do not use engine oil or an oil filter with
specifications deviating from those expressly
required for the prescribed service intervals.
Do not change the engine oil or oil filter in
order to set replacement intervals longer than those prescribed. This could otherwise cause
damage to the engine or exhaust gas after-
treatment.
Follow the instructions on the service interval
display for changing the engine oil. This could
Service products and filling capacities367
Technical data
Z