engine MERCEDES-BENZ GLC 2019 Owner's Guide

ProblemPossible causes/consequences andPPSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of theSmartKey.
XHave the vehicle and SmartKey checked at a qualified specialistworkshop.
If the vehicle can also not be locked/unlocked using the remote con-trol function:
XLock or unlock the vehicle using the mechanical key (Ypage 84).
XHave the vehicle and SmartKey checked at a qualified specialistworkshop.
The engine cannot bestarted using the Smart-Key.
The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interiorlighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 321).
or
XJump-start the vehicle (Ypage 322).
or
XConsult a qualified specialist workshop.
The engine cannot bestarted using the Start/Stop button. The Smart-Key is in the vehicle.
The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 80) and replace it if necessary(Ypage 80).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost themechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
82SmartKey
Opening and closing

Doors
Important safety notes
GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park positionP
RStart the engine.
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 or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
Unlocking and opening doors from
the inside
You can open a door from inside the vehicleeven if it has been locked. You can only open therear doors from inside the vehicle if they are notsecured by the child-proof locks (Ypage 64). Ifthe vehicle has been locked with the SmartKeyor with KEYLESS-GO, opening a door from theinside will trigger the anti-theft alarm system.Switch off the alarm (Ypage 75).
XTo unlock and open a front door:pull doorhandleD.If the door is locked, locking knobCpops up.The door is unlocked and opens.
XTo unlock a rear door:pull the rear doorhandle.The locking knob on the rear door pops up andthe rear door unlocks.
XTo open a rear door:pull the rear door han-dle again.The rear door opens.
Centrally locking and unlocking the
vehicle from the inside
You can centrally lock and unlock the vehiclefrom the inside. The buttons are on the driver’sdoor.
XTo unlock:press buttonC.
XTo lock:press buttonD.When the front-passenger door is closed, thevehicle is locked.
Meanwhile, the fuel filler flap will not be lockedor unlocked.
You cannot unlock the vehicle centrally from theinside if the vehicle has been locked with theSmartKey or KEYLESS-GO.
If the vehicle has been locked with the SmartKeyor with KEYLESS-GO, opening a door from theinside will trigger the anti-theft alarm system.Switch off the alarm (Ypage 75).
If a locked door is opened from the inside, theprevious unlock status of the vehicle will betaken into consideration if:
Rthe vehicle was locked using the locking but-ton for the central locking, or
Rlocked automatically
Doors83
Opening and closing
Z

The vehicle will be fully unlocked if it had previ-ously been fully unlocked. If only the driver'sdoor had been previously unlocked, only thedoor which has been opened from the inside isunlocked.
Automatic locking feature
XTo deactivate:press and hold buttonCforapproximately five seconds until a tonesounds.
XTo activate:press and hold buttonDforapproximately five seconds until a tonesounds.
If you press one of the two buttons and do nothear a tone, the relevant setting has alreadybeen selected.
The vehicle is locked automatically when theignition is switched on and the wheels are turn-ing.
You could therefore be locked out if:
Rthe vehicle is being pushed
Rthe vehicle is being towed
Rthe vehicle is being tested on a dynamometer.
You can activate and deactivate the automaticlocking mechanism via the multimedia system(see the Digital Operator's Manual).
Locking/unlocking the driver's door
with the mechanical key
iIf you want to centrally lock the vehicle usingthe mechanical key, begin by pressing thelocking button for the interior locking mech-anism while the driver's door is open. Thenlock the driver's door using the mechanicalkey.
XInsert the mechanical key into openingCinthe protective cap.
XPull and hold the door handle.
XPull the protective cap on the mechanical keyas straight as possible away from the vehicleuntil it releases.
XRelease the door handle.
XTo lock:turn the mechanical key clockwise asfar as it will go to positionG.
XTo unlock:turn the mechanical key counter-clockwise as far as it will go to positionG.
If you use the mechanical key to unlock andopen the driver's door, the anti-theft alarm sys-tem will be triggered. Switch off the alarm(Ypage 75).
Cargo compartment
Important safety notes
GDANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the tail-
gate is open while the engine is running, espe-
84Cargo compartment
Opening and closing

cially if the vehicle is in motion. There is a risk
of poisoning.
Always switch off the engine before opening
the tailgate. Never drive with the tailgate
open.
GWARNING
If objects, luggage or loads are not secured or
not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The tailgate swings upwards and to the rearwhen opened. Therefore, make sure thatthere is sufficient clearance above and behindthe tailgate.
The opening dimensions of the tailgate can befound in the "Vehicle data" section(Ypage 363).
You can limit the opening angle of the tailgate(Ypage 89).
Do not leave the SmartKey in the cargo com-partment. You could otherwise lock yourselfout.
You should preferably place luggage or loads inthe cargo compartment. Observe the loadingguidelines (Ypage 278).
Tailgate object detection with revers-
ing feature
Vehicles with remote tailgate closing:
The tailgate is equipped with automatic objectdetection with reversing function. If a solidobject blocks or restricts the tailgate when auto-matically opening, this procedure is stopped. If asolid object blocks or restricts the tailgate whenautomatically closing, the tailgate automaticallyopens again slightly. Automatic object detectionwith reversing function is only an aid. It is not asubstitute for your attentiveness when openingand closing the tailgate.
GWARNING
The reversing feature does not respond:
Rto soft, light and thin objects, e.g. fingers
Rover the last

If KEYLESS-GO detects a SmartKey in the cargocompartment before the closing procedurestarts, the tailgate remains open.
HANDS-FREE ACCESS
General notes
With KEYLESS-GO and HANDS-FREE ACCESS,you can open or close the tailgate or stop theprocedure without using your hands. This is use-ful if you have your hands full. To do this, makea kicking movement under the bumper with yourfoot.
Observe the following points:
RCarry your KEYLESS-GO key about your per-son. The SmartKey must be at the rear of thevehicle in the detection range of KEYLESS-GO.
RWhen making the kicking movement, makesure that you are standing firmly on theground and that there is sufficient clearanceto the rear of the vehicle. You could otherwiselose your balance, for example on ice.
RAlways ensure that you only make the kickingmovement within the detection range of sen-sorsC.
RStand at least 12 in (30 cm) away from therear area while doing so.
RDo not come into contact with the bumperwhile making the kicking movement. Other-wise, the sensors may not function correctly.
RHANDS-FREE ACCESS does not function dur-ing engine start.
RDirt caused by road salt or snow around sen-sorsCmay restrict functionality.
Using the HANDS-FREE ACCESS with a pros-thetic leg may restrict functionality.
RIf a KEYLESS-GO key is at the rear of the vehi-cle in the detection range of KEYLESS-GO,HANDS-FREE ACCESS could be triggered.The tailgate could thus be opened or closedunintentionally, for example, if you:
-install or remove the ball coupling.
-couple or uncouple a trailer.
-install or remove a rear-mounted bicyclerack.
-load/unload bicycles on/from a rear-mounted bicycle rack.
-sit on the edge of the cargo compartment.
-set something down or lift something upbehind the vehicle.
-polish the rear of the vehicle.
Do not carry the KEYLESS-GO key about yourperson in these situations or in situations sim-ilar to these. This will prevent unintentionalopening or closing of the tailgate.
Important safety notes
GWARNING
The vehicle exhaust system can become very
hot. If you use HANDS-FREE ACCESS, you
could burn yourself by touching the exhaust
system. There is a risk of injury. Always
ensure that you make the kicking movement
only within the detection range of the sensors.
!If the SmartKey is within the rear detectionrange of KEYLESS-GO, the following situa-tions, for example, could lead to the uninten-tional opening of the tailgate:
Rwhen using an automatic car wash
Rwhen using a power washer
Make sure that the SmartKey is at least 10 ft(3 m) away from the vehicle.
Cargo compartment87
Opening and closing
Z

Operation
XTo open or close:kick with your foot intosensor detection rangeCbeneath thebumper.Two warning tones sound while the tailgate isopening or closing.
XIf the tailgate does not open or close afterseveral attempts:wait at least ten secondsthen kick under the bumper once again.
If you hold your foot under the bumper for toolong, the tailgate does not open or close. Repeatthe leg movement more quickly if this occurs.
To stop the opening or closing procedure, youhave the following options:
RKick with your foot into sensor detectionrangeCbeneath the bumper.
RPress the top of the star on the tailgate.
RPress the closing button on the tailgate.
RPress theTbutton on the SmartKey.
If the tailgate closing procedure has been stop-ped:
RMove your foot under the bumper again andthe tailgate will open.
If the tailgate opening procedure has been stop-ped:
RKick with your foot under the bumper againand the tailgate will close.
Opening/closing automatically from
inside
Important safety notes
GDANGER
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the tail-
gate is open while the engine is running, espe-
cially if the vehicle is in motion. There is a risk
of poisoning.
Always switch off the engine before opening
the tailgate. Never drive with the tailgate
open.
GWARNING
Parts of the body could become trapped dur-
ing automatic closing of the tailgate. In addi-
tion, people may be standing in the closing
area or may enter the closing area, e.g. chil-
dren, during the closing procedure. There is a
risk of injury.
Make sure that nobody is in the vicinity of the
closing area during the closing process.
Release the remote operating switch imme-
diately if somebody becomes trapped. To re-
open the tailgate pull on the remote operating
switch.
Vehicles with HANDS-FREE ACCESS:
You can also stop the closing process by per-forming a kicking movement under the rearbumper.
!The tailgate swings upwards and to the rearwhen opened. Therefore, make sure thatthere is sufficient clearance above and behindthe tailgate.
Two warning tones sound while the tailgate isopening or closing.
The opening dimensions of the tailgate can befound in the "Vehicle data" section(Ypage 363).
Opening and closing
88Cargo compartment
Opening and closing

You can continue to operate the side windowsafter you switch off the engine or remove theSmartKey. This function remains active for fiveminutes or until you open a front door.
When the override feature for the side windowsis activated, the side windows cannot be oper-ated from the rear (Ypage 64).
Information on opening and closing the rollersunblinds on the rear side windows(Ypage 290).
Convenience opening
General notes
If the SmartKey is in close proximity to the vehi-cle, the convenience opening function is availa-ble.
Vehicles with KEYLESS-GO or KEYLESS-GOstart function:you can ventilate the vehiclebefore you start driving.
To do this, the SmartKey is used to carry out thefollowing functions simultaneously:
Runlock the vehicle
Ropen the side windows
Ropen the sliding sunroof
Rswitch on the seat ventilation for the driver'sseat
The "convenience opening" feature is also avail-able when the vehicle is unlocked.
Convenience opening
XPress and hold the6button on the Smart-Key until the sliding sunroof is in the desiredposition.
XTo interrupt convenience opening:releasethe6button.
Convenience closing feature
Important safety notes
GWARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. Make sure that no body parts are in
close proximity during the closing procedure.
Vehicles with KEYLESS-GO or KEYLESS-GOstart function:if the SmartKey is in close prox-imity to the vehicle, the convenience closingfunction is available.
When you lock the vehicle, you can simultane-ously:
Rclose the side windows
Rclose the sliding sunroof
Notes on the automatic reversing feature for:
Rthe side windows (Ypage 90)
Rthe sliding sunroof (Ypage 93)
Using the SmartKey
XPress and hold the7button until the sidewindows and the sliding sunroof are fullyclosed.
XMake sure that all the side windows and thesliding sunroof are closed.
XTo interrupt convenience closing:releasethe7button.
Using KEYLESS-GO
The driver's door and the door at which the han-dle is used, must both be closed. The SmartKeymust be outside the vehicle. The gap betweenthe SmartKey and the corresponding door han-dle should not be greater than 3 ft (1 m).
XTouch recessed sensor surfaceCon thedoor handle until the side windows and thesliding sunroof are fully closed.
Side windows91
Opening and closing
Z

XTurn the SmartKey to positionGorHin theignition lock.
XPress or pull theWswitch in the corre-sponding direction.
If you press/pull theWswitch beyond thepressure point, automatic operation is started inthe corresponding direction. When being raisedor opened, the sliding sunroof first automaticallymoves to the comfort setting. If you activateraise or open again, the sliding sunroof is raisedor opened completely. You can stop automaticoperation by pressing/pulling the switch again.
When opening and raising the roof, automaticoperation is only available if the sliding sunroofis in the closed position.
The sun protection cover automatically opensalong with the sliding sunroof. You can open orclose the sun protection cover manually whenthe sliding sunroof is raised or closed.
You can continue to operate the sliding sunroofafter switching off the engine or removing the
SmartKey from the ignition lock. This function isavailable for up to five minutes or until the driv-er's or front-passenger door is opened.
Resetting
!If the sliding sunroof still cannot be openedor closed fully after resetting, contact a quali-fied specialist workshop.
Reset the sliding sunroof if it does not movesmoothly.
XTurn the SmartKey to positionGorHin theignition lock.
XRaise the sliding sunroof fully at the rear(Ypage 93).
XKeep theWswitch pressed for anothersecond.
XMake sure that the sliding sunroof can be fullyopened and closed again (Ypage 93).
XIf this is not the case, repeat the steps above.
Problems with the sliding sunroof
GWARNING
If you close the sliding sunroof again immediately after it has been blocked or reset, the sliding
sunroof closes with increased or maximum force. The reversing feature is then not active. Parts
of the body could be trapped in the closing area in the process. This poses an increased risk of
injury or even fatal injury.
Make sure that no parts of the body are in the closing area.
If somebody becomes trapped:
Rrelease the switch immediately, or
Rpress the switch in any direction during the automatic closing process
The closing process is stopped.
!If the sliding sunroof still cannot be opened or closed as a result of a malfunction, contact aqualified specialist workshop.
94Sliding sunroof
Opening and closing

Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
Observe the following when adjusting steeringwheelC, seat beltDand driver's seat

of injury in the head and neck area, e.g. in the
event of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Using the fore-and-aft adjustment, adjust thehead restraint so that it is as close as possible toyour head.
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of
the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do
the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt
before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
The seat belt does not offer the intended level
of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal
injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To prevent damage to the seats and the seatheating, observe the following notes:
RDo not spill liquids onto the seats. Dry theseats as soon as possible if liquid does getspilled on the seats.
RIf the seat covers are damp or wet, do notswitch on the seat heating. Also, do not usethe seat heating to dry the seats.
RClean the seat covers as recommended;see keyword "Care".
RDo not transport heavy loads on the seats.Do not place pointed objects on the seatcushions such as knives, nails or tools.Where possible, use the seats only for car-rying passengers.
RWhen operating the seat heating, do notcover the seats with insulating materials,e.g. blankets, coats, bags, protective cov-ers, child seats or booster seats.
!Make sure that there are no objects in thefootwell under or behind the seats when mov-ing the seats back. There is a risk that theseats and/or the objects could be damaged.
iFor more information, contact a qualifiedspecialist workshop.
iRelated topic:
REASY-PACK Quickfold rear bench seat(Ypage 281)
Seats97
Seats, steering wheel and mirrors
Z