fuel MERCEDES-BENZ GLC 2019 Owner's Manual

Shift recommendation
The gearshift recommendations assist you inadopting an economical driving style. The rec-ommended gear is shown in the multifunctiondisplay.
XWhen the corresponding gearshift recom-mendationCappears in the multifunctiondisplay of the instrument cluster, shift to rec-ommended gearD.
Protection against reaching the over-
revving range (Mercedes-AMG vehicles)
!In manual mode, the automatic transmis-sion does not shift up automatically evenwhen the engine limiting speed for the currentgear is reached. When the engine limitingspeed is reached, the fuel supply is cut toprevent the engine from overrevving. Alwaysmake sure that the engine speed does notreach the red area of the tachometer. There isotherwise a risk of engine damage.
Before the engine speed reaches the red area,an upshift indicator will be shown in the multi-function display.
XWhen messageCappears on the multifunc-tion display, pull the right-hand steeringwheel paddle shifter.
Kickdown
XFor maximum acceleration, depress theaccelerator pedal beyond the pressure point.The automatic transmission shifts to a lowergear depending on the engine speed.
XShift back up once the desired speed isreached.
If you apply full throttle, the automatic trans-mission shifts up to the next gear when themaximum engine speed is reached. This pre-vents the engine from overrevving.
Mercedes-AMG vehicles:kickdown is onlypossible in the temporary setting.
Automatic transmission149
Driving and parking
Z

Problems with the transmission
ProblemPossible causes/consequences andPPSolutions
The transmission hasproblems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist workshopimmediately.
The acceleration abilityis deteriorating.
The transmission no lon-ger changes gear.
The transmission is in emergency mode.
It is possible to shift to a gear and reverse gear only.
XStop the vehicle.
XShift the transmission to position].
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to position[or^.If[is selected, the transmission only shifts to one gear; if^isselected, the transmission shifts to reverse gear.
XHave the transmission checked at a qualified specialist workshopimmediately.
Transfer case
This section is only valid for vehicles with 4-wheel drive (4MATIC). Power is always trans-mitted to both axles.
!Performance tests may only be carried outon a 2-axle dynamometer. The brake systemor transfer case could otherwise be damaged.Contact a qualified specialist workshop for aperformance test.
!Since ESP®engages automatically, the igni-tion must be switched off (the SmartKey orStart/Stop button must be in positionZorG) if
Rthe electrical parking brake is being testedusing a dynamometer
Rthe vehicle is being towed with only oneaxle raised (not permitted for vehicles with4MATIC)
Otherwise, the brake system can be dam-aged.
!Vehicles with 4MATIC must not be towedwith either the front or the rear axle raised, asdoing so will damage the transmission.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. Risk of fire and
explosion by improper handling of fuel.
You must avoid fire, open flames, smoking
and creating sparks. Switch off the ignition
before refueling and, if present, switch off the
auxiliary heating.
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
150Refueling
Driving and parking

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 charge can cause sparks and
thereby ignite fuel vapors. There is a risk of
fire and explosion.
Before you open the fuel filler cap or take hold
of the pump nozzle, touch the metallic vehicle
body. This discharges any electrostatic
charge that may have built up.
Do not get into the vehicle again during the
refueling process. Otherwise, electrostatic
charge could build up again.
Do not get into the vehicle again during the refu-eling process. Otherwise electrostatic chargecould build up again.
!Do not use diesel to refuel vehicles with agasoline engine. Do not switch on the ignitionif you accidentally refuel with the wrong fuel.Otherwise, the fuel will enter the fuel system.Even small amounts of the wrong fuel couldresult in damage to the fuel system and theengine. Notify a qualified specialist workshopand have the fuel tank and fuel lines drainedcompletely.
!Overfilling the fuel tank could damage thefuel system.
!Take care not to spill any fuel on paintedsurfaces. You could otherwise damage thepaintwork.
!Use a filter when adding fuel from a fuel can.The fuel lines and/or the fuel injection systemcould otherwise be blocked by particles fromthe fuel can.
If you overfill the fuel tank, fuel could spray outwhen the fuel pump nozzle is removed.
For further information on fuel and fuel quality(Ypage 358).
Refueling
General information
Pay attention to the important safety notes(Ypage 150).
If you unlock/lock the vehicle from the outside,the fuel filler flap also unlocks/locks.
The position of the

Do not add any more fuel after the pump stopsfilling for the first time. Otherwise, fuel may leakout.
Closing the fuel filler flap
XReplace the cap on the filler neck and turnclockwise until it engages audibly.
XClose the fuel filler flap.
Close the fuel filler flap before locking the vehi-cle.
If you are driving with the fuel filler cap open, the

Bear in mind that at a speed of only 30 mph(approximately 50 km/h), the vehicle covers adistance of 44 ft (approximately 14m)per sec-ond.
Drive sensibly – save fuel
Observe the following tips to save fuel:
XThe tires should always be inflated to the rec-ommended tire pressure.
XRemove unnecessary loads.
XRemove roof racks when they are not needed.
XWarm up the engine at low engine speeds.
XAvoid frequent acceleration or braking.
XHave all maintenance work carried out asindicated by the service intervals in the Main-tenance Booklet or by the service interval dis-play.
Fuel consumption also increases when driving incold weather, in stop-start traffic and in hilly ter-rain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
affect your reflexes, perceptions and judg-
ment.
The possibility of a serious or even fatal acci-
dent is greatly increased when you drink or
take drugs and drive.
Do not drink or take drugs and drive or allow
anyone to drive who has been drinking or tak-
ing drugs.
Emission control
GDANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases is hazardous to health
and can result in poisoning. There is a risk of
fatal injury. Therefore, never leave the engine
running an enclosed space without adequate
ventilation.
Certain engine systems are designed to keepthe level of poisonous components in exhaustfumes within legal limits.
These systems only work at peak efficiency ifthey are serviced exactly in accordance with themanufacturer's specifications. Always havework on the engine carried out at a qualifiedspecialist workshop. Mercedes-Benz recom-mends that you use an authorized Mercedes-Benz Center for this purpose. In particular, workrelevant to safety or on safety-related systemsmust be carried out at a qualified specialistworkshop.
The engine settings must not be changed underany circumstances. Furthermore, all specificservice work must be carried out at regularintervals and in accordance with the Mercedes-Benz service requirements. Details can be foundin the Maintenance Booklet.
ECO display
The ECO display shows you how economicalyour driving style is. The ECO display assists youin achieving the most economical driving stylefor the selected settings and prevailing condi-tions. Your driving style can significantly influ-ence the vehicle's consumption.
CAcceleration
DCoasting

RACE START is deactivated when the vehiclereaches a speed of approximately 30 mph (Can-ada: 50 km/h).
RACE START is deactivated immediately if yourelease the accelerator pedal during RACESTART or if any of the activation conditions areno longer fulfilled. TheRACE START CanceledRACE START Canceledmessage appears in the multifunction display.
iIf RACE START is used repeatedly within ashort period of time, it is only available againafter the vehicle has been driven a certaindistance.
AIR BODY CONTROL
General notes
AIR BODY CONTROL is an air suspension systemwith variable damping for improved driving com-fort. All-round level control ensures the bestpossible suspension and constant ground clear-ance, even with a laden vehicle. When you drivefast, the vehicle is lowered automatically toimprove driving safety and to reduce fuel con-sumption. There is also the option to manuallyadjust the vehicle level.
AIR BODY CONTROL consists of:
Rair suspension system with variable springrate
Rautomatic level control
Rspeed-dependent lowering to reduce fuelconsumption
Rmanual level control
RADS PLUS (Adaptive Damping System withcontinuous damping adjustment)
RDYNAMIC SELECT switch (Ypage 139) andlevel button (Ypage 173)
Available suspension settings
C(Comfort)Rthe suspension setting iscomfortable
Rthe vehicle is set to normallevel
RMercedes-AMG GLC 434MATIC:at speeds above100 mph (160 km/h), thevehicle level lowers
RMercedes-AMG GLC 634MATIC+/GLC 63 S4MATIC+:at speeds above112 mph(180 km/h), thevehicle level lowers
RAll other models:at speedsabove 86 mph, (138 km/h)the vehicle level lowers
RMercedes-AMG GLC 434MATIC:at speeds less than87 mph (140 km/h), thevehicle is raised again
RMercedes-AMG GLC 634MATIC+/GLC 63 S4MATIC+:at speeds lessthan 75 mph (120 km/h),the vehicle is raised again
RAll other models:at speedsbelow 50 mph (80 km/h),the vehicle is raised again
RMercedes-AMG GLC 634MATIC+/GLC 63 S4MATIC+:the 4MATIC+ issynchronised dynamically
E(Econ-omy)
Rthe suspension setting iscomfortable
Rthe vehicle is set to low level
172Driving systems
Driving and parking

For more information, please contact a qualifiedspecialist workshop.
Please observe the manufacturer's operatinginstructions for the trailer coupling if a detach-able trailer coupling is used.
Couple and uncouple the trailer carefully. If youdo not couple the trailer to the towing vehiclecorrectly, the trailer could become detached.
Make sure that the following values are notexceeded:
Rthe permissible trailer drawbar noseweight
Rthe permissible trailer load
Rthe permissible rear axle load of the towingvehicle
Rthe maximum permissible gross vehicleweight of both the towing vehicle and thetrailer
The applicable permissible values, which mustnot be exceeded, can be found:
Rin the vehicle documents
Ron the type plate for the trailer
Ron the vehicle identification plate
If the values differ, the lowest value applies.
When towing a trailer, your vehicle's handlingcharacteristics will be different in comparisonwith when driving without a trailer.
The vehicle/trailer combination:
Ris heavier
Ris restricted in its acceleration and gradient-climbing capability
Rhas an increased braking distance
Ris affected more by strong crosswinds
Rdemands more sensitive steering
Rhas a larger turning circle
This could impair the handling characteristics.
When towing a trailer, always adjust your speedto the current road and weather conditions. Donot exceed the maximum permissible speed foryour vehicle/trailer combination.
Notes on towing a trailer
General notes
RDo not exceed the maximum permissiblespeed for vehicle/trailer combinations in therelevant country.
This lowers the risk of an accident.
ROnly install an approved trailer coupling onyour vehicle.
Further information on availability and oninstallation is available from any authorizedMercedes-Benz Center.
RThe bumpers of your vehicle are not suitablefor installing detachable trailer couplings.
RDo not install hired trailer couplings or otherdetachable trailer couplings on the bumpersof your vehicle.
RIf you no longer need the ball coupling,remove it from the ball coupling recess. Thiswill reduce the risk of damage to the ball cou-pling.
When towing a trailer, set the tire pressure onthe rear axle of the towing vehicle for a maxi-mum load; see the tire pressure table in the fuelfiller flap (Ypage 348).
Please note that when towing a trailer, the fol-lowing driving systems have limited availabilityor are not available at all:
RPARKTRONIC (Ypage 179)
RBlind Spot Assist (Ypage 193)
RActive Lane Keeping Assist (Ypage 200)
On vehicles without level control, the height ofthe ball coupling will alter according to the loadplaced on the vehicle. If necessary, use a trailerwith a height-adjustable drawbar.
You will find permissible trailer loads under"Technical data" (Ypage 364).
Driving tips
Observe the information on ESP®trailer stabili-zation (Ypage 71) and on pulling away with atrailer (Ypage 135).
The maximum permissible speed for vehicle/trailer combinations depends on the type oftrailer. Before beginning the journey, check thetrailer's documents to see what the maximumpermitted speed is. Observe the maximum per-missible speed in the relevant country.
For certain Mercedes-Benz vehicles, the maxi-mum permissible rear axle load is increasedwhen towing a trailer. See the "Technical data"section to find out whether this applies to yourvehicle (Ypage 365). In the event of increasedrear axle load, the vehicle/trailer combinationmay not exceed a maximum speed of 60 mph(100 km/h) for reasons concerning the operat-ing permit. This also applies in countries in
Towing a trailer203
Driving and parking
Z

which the maximum permissible speed for vehi-cle/trailer combinations is above 60 mph(100 km/h).
When towing a trailer, your vehicle's handlingcharacteristics will be different in comparison towhen driving without a trailer and it will con-sume more fuel.
Shift to a lower gear on long and steep downhillgradients.
This also applies to:
Ractivated DISTRONIC PLUS
Ractivated cruise control
This will use the braking effect of the engine, sothat less braking will be required to maintain thespeed. This relieves the load on the brake sys-tem and prevents the brakes from overheatingand wearing too quickly. If you need additionalbraking, depress the brake pedal repeatedlyrather than continuously.
Driving tips
If the trailer swings from side to side:
XDo not accelerate.
XDo not counter-steer.
XBrake if necessary.
RMaintain a greater distance from the vehiclein front than when driving without a trailer.
RAvoid braking abruptly. If possible, brake gen-tly at first to allow the trailer to run on. Then,increase the braking force rapidly.
RThe values given for gradient-climbing capa-bilities from a standstill refer to sea level.When driving in mountainous areas, note thatthe power output of the engine and, conse-quently, the vehicle's gradient-climbing capa-bility, decreases with increasing altitude.
Installing the ball coupling
GWARNING
If the ball coupling is not correctly installed
and secured, it could come loose while driving
and endanger other road users. There is a risk
of an accident and injury.
Install and secure the ball coupling as descri-
bed in the ball coupling manufacturer's instal-
lation instructions. Make sure that the ball
coupling is correctly installed and secured
before every journey.
GWARNING
If the ball coupling is not installed and secured
correctly the trailer may come loose. There is
a risk of an accident.
Install and secure the ball coupling as descri-
bed in the ball coupling installation instruc-
tions. Make sure that the ball coupling is
installed and secured correctly before every
journey.
XPull protective capCin the direction of thearrow, out of the ball coupling recess.
XStow protective capCso that it cannot bethrown around.
XObserve the manufacturer's installationinstructions.
Observe the loading guidelines (Ypage 278)and the safety notes regarding stowagespaces (Ypage 278).
Coupling up a trailer
!Do not connect the trailer's brake system (iffeatured) to the hydraulic brake system of thetowing vehicle, as the latter is equipped withan anti-lock brake system. Doing so will resultin a loss of function of the brake systems ofboth the vehicle and the trailer.
XApply the vehicle's electric parking brakemanually.
XStart the engine.
XShift the transmission to position].
XVehicles with AIR BODY CONTROL:selecttheComfortdrive program.
204Towing a trailer
Driving and parking

Tachometer
!Do not drive in the overrevving range, as thiscould damage the engine.
The red band in the tachometer indicates theengine's overrevving range.
The fuel supply is interrupted to protect theengine when the red band is reached.
Outside temperature display
You should pay special attention to road condi-tions when temperatures are around freezingpoint.
Bear in mind that the outside temperature dis-play indicates the temperature measured anddoes not record the road temperature.
The outside temperature display is in the multi-function display (Ypage 210).
Changes in the outside temperature are dis-played after a short delay.
Coolant temperature gage
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.
!If the coolant temperature is too high, a dis-play message is shown.
If the coolant temperature display is in thearea marked in red, do not continue driving.Otherwise, the engine will be damaged.
The coolant temperature gauge is in the lowersection of the tachometer (Ypage 36).
Under normal operating conditions and at thecorrect coolant level, the display may rise to thered mark.
Operating the on-board computer
CMultifunction display
DRight control panel

Displaying the range and current fuel
consumption
CRange of the fuel supply
DCurrent fuel consumption