ECU MERCEDES-BENZ GLC 2019 Workshop Manual

multimedia system (see the Digital Operator'sManual).
If the multimedia system does not detect yourmobile phone, this may be due to particularsecurity settings on your mobile phone (see themanufacturer's operating instructions).
Only one mobile phone can be connected to themultimedia system at any one time.
Searching for a mobile phone
COMAND:
XSelectPhonePhone{Connect DeviceConnect Device{Con‐Con‐nect Another Devicenect Another Device.
XOne-telephone mode:selectMain PhoneMain Phone.
XTwo-telephone mode:selectAdditionalAdditional
Phone (Incoming Calls Only)Phone (Incoming Calls Only)when amobile phone is already connected.
XSelectStart SearchStart Search.
XSelect mobile phone.
Audio 20:
XSelectTel/Tel/

Stowage areas
Loading guidelines
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
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.
GWARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is a risk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The handling characteristics of a laden vehicleare dependent on the distribution of the loadwithin the vehicle. For this reason, you shouldobserve the following notes when transporting aload:
RNever exceed the maximum permissiblegross vehicle mass or the gross axle weightrating for the vehicle (including occupants).The values are specified on the vehicle iden-
tification plate on the B-pillar of the driver'sdoor.
RThe cargo compartment is the preferred placeto carry objects.
RPosition heavy loads as far forward as possi-ble and as low down in the cargo compart-ment as possible.
RThe load must not protrude above the upperedge of the seat backrests.
RAlways place the load behind unoccupiedseats if possible.
RHook in the cargo net when loading.
RSecure the load with sufficiently strong andwear-resistant tie-downs. Pad sharp edges forprotection.
Stowage spaces
Important safety notes
GWARNING
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.
RAlways stow objects in such a way that they
cannot be tossed about in these or similar
situations.
RAlways make sure that objects do not pro-
trude out of the stowage spaces, luggage
nets or stowage nets.
REnsure that closable stowage spaces are
shut before beginning your journey.
RAlways stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or large objects in
the cargo compartment.
Observe the loading guidelines (Ypage 278).
278Stowage areas
Stowage and features

Depending on the vehicle's equipment, the fol-lowing may be in the stowage space:
Ran SD card slot
Ra multimedia connector unit with two USB
ports, e.g. for iPod®, iPhone®or MP3 player(see the Digital Operator's Manual)
Ra mobile phone bracket
Ra small stowage space in the upper front sec-tion
Stowage compartment in the doors
You can store items such as a rolled-up fluores-cent jacket (driver's door) and the vehicle docu-ment wallet (front-passenger door) in stowagespaceCin the doors.
In doorsDyou can store bottles with a capacityof up to 34 fl. oz. (1.0 liter).
Stowage compartments in the rear
Stowage compartment in the rear armrest
!Do not sit on or support your body weight onthe rear seat armrest when it is folded down,as you could otherwise damage it.
!Close the cover of the stowage compart-ment before folding the rear seat armrestback into the seat backrest.
XTo open:fold down the seat armrest.
XPress on the front of release catchCand foldthe cover of the armrest upwards.
Additional stowage space
Depending on the equipment, the followingadditional stowage areas are available in thevehicle:
Rcard and coin holder in the dashboard abovethe light switch (not suitable for holding thinobjects such as shopping tokens)
Rthe open stowage compartment in the centerconsole
Rstowage net in the front-passenger footwell
Rthe map pockets on the back of the driver'sand front-passenger seat
Rparcel net on the left-hand side in the cargocompartment
Observe the loading guidelines (Ypage 278)and the safety notes regarding stowage spaces(Ypage 278).
Ski and snowboard bag
Important safety notes
GWARNING
The skibag in conjunction with the lashing
straps cannot restrain any objects other than
skis.
Vehicle occupants could be struck in the fol-
lowing situations, for example, in the event of
sudden braking or an accident:
Rif you transport other heavy or sharp-edged
objects in the skibag
Rif you do not secure the skibag with the
lashing straps
There is a risk of injury.
Store only skis in the skibag. Always secure
the skibag with the lashing straps so that it
cannot move around.
A maximum of four pairs of skis or two snow-boards can be transported in the ski and snow-board bag.
280Stowage areas
Stowage an d features

Securing the ski/snowboard bag in the
cargo compartment
XFold the middle rear seat backrest forwards(Ypage 281).
XSlide the ski and snowboard bag between thetwo outer rear seat backrests. Ensure that thewheels of the ski/snowboard bag are in thecargo compartment.
XOpen the ski/snowboard bag with zipCandplace the skis or snowboards inside it.
XClose the ski and snowboard bag.
XPull tensioning strapDtight by the loose enduntil the skis or snowboards are held firmlyinside the ski/snowboard bag.
XEngage tensioning strap

XAdjust the head restraints if necessary(Ypage 99).
XMove the driver's or front-passenger seatback if necessary.
Locking the center rear seat backrest
In order to prevent the cargo compartment frombeing accessed by unauthorized persons, thecenter seat backrest can be locked using acatch. The center seat backrest can only be fol-ded forward together with the left seat backrest.
XTo lock:fold the left and center seat backr-ests forward. Make sure that the center andleft seat backrests are engaged and joinedtogether.
XSlide catchCupwards.The release mechanism of the center seatbackrest is locked.
XTo unlock:fold the left and center seat backr-ests forward.
XSlide catchCdownwards.
Securing loads
Cargo tie-down rings
Observe the following notes on securing loads:
RObserve the loading guidelines (Ypage 278).
RSecure the load using the cargo tie-downrings.
RDistribute the load on the cargo tie-downrings evenly.
RDo not use elastic straps or nets to secure aload, as these are only intended as an anti-slipprotection for light loads.
RDo not route tie-downs across sharp edges orcorners.
RPad sharp edges for protection.
CCargo tie-down rings in the cargo compart-ment
Bag hook
GWARNING
The bag hooks cannot restrain heavy objects
or items of luggage. Objects or items of lug-
gage could be flung around and thereby hit
vehicle occupants when braking or abruptly
changing directions. There is a risk of injury.
Only hang light objects on the bag hooks.
Never hang hard, sharp-edged or fragile
objects on the bag hooks.
!The bag hook can bear a maximum load of6.6lbs (3kg) and should not be used to securea load.
CBag hook
Stowage areas283
Sto wage an d features
Z

Cargo compartment cover
Important safety notes
GWARNING
On its own, the cargo compartment cover
cannot secure or restrain heavy objects,
items of luggage and heavy loads. You could
be hit by an unsecured load during sudden
changes in direction, braking or in the event of
an accident. There is an increased risk of
injury or even fatal injury.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping over, e.g. by
using tie downs, even if you are using the
cargo compartment cover.
!When loading the vehicle, make sure thatyou do not stack the load in the cargo com-partment higher than the lower edge of theside windows. Do not place heavy objects ontop of the cargo compartment cover.
The cargo compartment cover is secured behindthe rear bench seat backrest.
Extending and retracting the cargo
compartment cover
XTo extend:pull cargo compartment coverCback and clip it into retainersDon the leftand right.
XTo retract:unhook the cargo compartmentcoverCfrom left-hand and right-hand retain-ersD.
You can vary the position of the rear of the cargocompartment cover - parking position (horizon-tal) or loading position (folded down).
XParking position:guide the grab handle

arrow and insert the cargo compartmentcoverCinto the right-hand anchorage fromaboveD.
If the cargo compartment cover is not beingused, it can be stored under the cargo compart-ment floor.
Parcel net
Important safety notes
GWARNING
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.
RAlways stow objects in such a way that they
cannot be tossed about in these or similar
situations.
RAlways make sure that objects do not pro-
trude out of the stowage spaces, luggage
nets or stowage nets.
REnsure that closable stowage spaces are
shut before beginning your journey.
RAlways stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or large objects in
the cargo compartment.
Observe the following notes:
RObserve the loading guidelines (Ypage 278).
RTo avoid damaging the side trim panels in thecargo compartment, maintain a sufficient dis-tance from the side trim panels in the cargocompartment when removing and insertingthe cargo compartment floor.
Installing the parcel net
XOpen the cargo compartment floor(Ypage 287) and fold forward.
XLift up cargo compartment floorCand pull itup and out of the front guides.
XPull cargo compartment floorCbackslightly, tilt to the side and remove from thecargo compartment.
XPlace cargo compartment floorCon a cleansurface as shown.
XStretch rubber band

XCarefully open coversCin the direction ofthe arrow and fold upwards.
XOnly secure the roof carrier to the anchoragepoints under coversC.
XObserve the manufacturer's installationinstructions.
Features
Cup holder
Important safety notes
GWARNING
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.
RAlways stow objects in such a way that they
cannot be tossed about in these or similar
situations.
RAlways make sure that objects do not pro-
trude out of the stowage spaces, luggage
nets or stowage nets.
REnsure that closable stowage spaces are
shut before beginning your journey.
RAlways stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or large objects in
the cargo compartment.
!Only use the cup holders for containers ofthe right size and which have lids. The drinkscould otherwise spill.
!Do not expose drinks bottles in the cupholder in the center console to continuous,strong and direct sunlight. The passengercompartment in the area of the center con-sole can otherwise be damaged by the con-centrated and reflected sunlight.
Observe the loading guidelines (Ypage 278).
Cup holder in the front center console
XTo open:open the stowage compartment(Ypage 279).
XTo remove:slide catch

Mercedes-Benz Specifications for ServiceProducts is available at any authorizedMercedes-Benz Center.
The following cause engine failure or damageto the exhaust system:
RUse of engine oils and oil filters that havenot been expressly approved for the servicesystem
RReplacement of engine oil and oil filter afterthe replacement interval specified by theservice system has expired
RUse of engine oil additives
!Do not add too much oil. adding too muchengine oil can result in damage to the engineor to the catalytic converter. Have excessengine oil siphoned off.
Add engine oil (example)
XTurn capCcounter-clockwise and remove it.
XAdd engine oil.If the oil level is at or below the MIN mark onthe oil dipstick, add 1.1 US qt (1.0l)of engineoil.
XReplace capCon the filler neck and tightenclockwise.Ensure that the cap locks into place securely.
XCheck the oil level again with the oil dipstick(Ypage 301).
Further information on engine oil (Ypage 360).
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 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 protective gloves and protective
eyewear when opening. Open the cap slowly
to release 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.
302Engine compartment
Maintenance and care

Cleaning the vehicle parts
Cleaning the wheels
GWARNING
The water jet from a circular jet nozzle (dirt
blasters) can cause invisible exterior damage
to the tires or chassis components. Compo-
nents damaged in this way may fail unexpect-
edly. There is a risk of an accident.
Do not use power washers with circular jet
nozzles to clean the vehicle. Have damaged
tires or chassis components replaced imme-
diately.
!Do not use acidic wheel cleaning productsto remove brake dust. This could damagewheel bolts and brake components.
!Do not park your vehicle for a long period oftime directly after cleaning, particularly aftercleaning the wheel rim with wheel cleaner.Wheel cleaner can lead to the increased cor-rosion of the brake discs and pads. Therefore,drive for a few minutes after cleaning. Byheating up the brakes, the brake discs andpads dry. The vehicle can then be parked for along period of time.
Cleaning the windows
GWARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not use dry cloths, abrasive products,solvents or cleaning agents containing sol-vents to clean the inside of the windows. Donot touch the insides of the windows withhard objects, e.g. an ice scraper or ring. Thereis otherwise a risk of damaging the windows.
!Clean the water drainage channels of thewindshield and the rear window at regularintervals. Deposits such as leaves, petals andpollen may under certain circumstances pre-vent water from draining away. This can lead
to corrosion damage and damage to elec-tronic components.
XClean the inside and outside of the windowswith a damp cloth and a cleaning product thatis recommended and approved by Mercedes-Benz.
Cleaning wiper blades
GWARNING
You could become trapped by the windshield
wipers if they start moving while cleaning the
windshield or wiper blades. There is a risk of
injury.
Always switch off the windshield wipers and
the ignition before cleaning the windshield or
wiper blades.
!Do not pull the wiper blade. Otherwise, thewiper blade could be damaged.
!Do not clean wiper blades too often and donot rub them too hard. Otherwise, the graph-ite coating could be damaged. This couldcause wiper noise.
!Hold the wiper arm securely when foldingback. The windshield could be damaged if thewiper arm smacks against it suddenly.
XMove the wiper arms to a vertical position(Ypage 116) and fold away from the wind-shield.
XCarefully clean the wiper blades with a dampcloth.
XFold the windshield wiper arms back againbefore switching on the ignition.
Cleaning the exterior lighting
!Only use cleaning agents or cleaning clothswhich are suitable for plastic light lenses.Unsuitable cleaning agents or cleaning clothscould scratch or damage the plastic light len-ses.
XClean the plastic lenses of the exterior light-ing using a wet sponge and a mild cleaningagent, e.g. Mercedes-Benz car shampoo orcleaning cloths.
308Care
Maintenance and care