2019 MERCEDES-BENZ GLC catalytic converter

vehicle occupants while driving and thisdefect has already been repaired at leasttwice and Mercedes-Benz, LLC has beeninformed in writing of the necessity of arepair.
(2) the defect or malfunction, though less seri-ous than (1) above, has already beenrepaired at least four times and Mercedes-Benz has been informed in writing of thenecessity of a repair.
(3) the vehicle cannot be used for longer than30 calendar days because of repair workresulting from this or other substantialdefects or malfunctions.
Please send your written notice to:
Mercedes-Benz USA, LLC
Customer Assistance Center
3 Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
Always bring the Maintenance Booklet with youwhen taking the vehicle to an authorizedMercedes-Benz Center. Your customer serviceadvisor will enter every service into your Main-tenance Booklet on your behalf.
Roadside Assistance
The Mercedes-Benz Roadside Assistance Pro-gram offers technical help in the event of abreakdown. Calls to the toll-free Roadside Assis-tance Hotline are answered by our agents 24hours a day, 365 days a year.
1-800-FOR-MERCedes (1-800-367-6372)(USA)
1-800-387-0100 (Canada)
For additional information, refer to theMercedes-Benz Roadside Assistance Programbrochure (USA) or the "Roadside Assistance"section in the Service and Warranty Booklet(Canada). You will find both in the vehicle docu-ment wallet.
Change of address or change of own-
ership
In the event of a change of address, please sendus the "Notification of Address Change" in the
Service and Warranty Booklet or simply call theMercedes-Benz Customer Assistance Center(USA) at the hotline number1-800-FOR-MERCedes (1-800-367-6372) orCustomer Service Center (Canada) at1-800-387-0100. This will assist us in contact-ing you in a timely manner should the need arise.
If you sell your Mercedes, please leave all liter-ature in the vehicle so that it is available to thenext owner.
If you have purchased a used car, please send usthe "Notification of Used Car Purchase" in theService and Warranty Booklet or simply call theMercedes-Benz Customer Assistance Center(USA) at the hotline number1-800-FOR-MERCedes (1-800-367-6372) orCustomer Service (Canada) at 1-800-387-0100.
Vehicle operation outside the USA
and Canada
When you are abroad with your vehicle, observethe following points:
RService facilities or replacement parts maynot be readily available.
RLead-free fuel for vehicles with a catalyticconverter may not be available. Leaded fuelcan cause damage to the catalytic converter.
RThe fuel may have a considerably loweroctane number. Unsuitable fuel can causeengine damage.
Some Mercedes-Benz models are available fordelivery in Europe through our European Deliv-ery Program. For details, consult an authorizedMercedes-Benz Center or write to one of thefollowing addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Service and vehicle operation29
Introduction
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Starting the engine
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.
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.
GWARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes
The catalytic converter is preheated for up to30 seconds after a cold start. The sound of theengine may change during this time.
Automatic transmission
XShift the transmission to position](Ypage 141).The transmission position indicator on themultifunction display shows](Ypage 142).
iYou can start the engine in transmissionposition]and\\.
Starting procedure with the SmartKey
To start the engine using the SmartKey insteadof the Start/Stop button, pull the Start/Stopbutton out of the ignition lock.
XTurn the SmartKey to positionIin the igni-tion lock and release it as soon as the engineis running.
If the engine will not start:
XRemove the SmartKey from the ignition lock.
XReinsert the SmartKey into the ignition lockafter a short waiting period.
XTurn the SmartKey to positionHin the igni-tion lock (Ypage 131).The indicator lamps in the instrument clusterlight up (Ypage 256).
XTurn the SmartKey to positionIin the igni-tion lock (Ypage 131) and release it as soonas the engine is running.
Starting procedure with the Start/Stop
button
The Start/Stop button is only available on vehi-cles with KEYLESS-GO or the KEYLESS-GO startfunction.
The Start/Stop button can be used to start thevehicle manually without inserting the SmartKeyinto the ignition lock. The Start/Stop buttonmust be inserted in the ignition lock and theSmartKey must be in the vehicle. This mode forstarting the engine operates independently ofthe ECO start/stop automatic engine start func-tion.
You can start the engine if a valid SmartKey is inthe vehicle. Switch off the engine and always
Driving133
Driving and parking
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ProblemPossible causes/consequences andPPSolutions
The engine is not runningsmoothly and is misfir-ing.
There is a malfunction in the engine electronics or in a mechanicalcomponent of the engine management system.
XOnly depress the accelerator pedal slightly.Otherwise, non-combusted fuel may get into the catalytic converterand damage it.
XHave the cause rectified immediately at a qualified specialist work-shop.
The coolant temperaturedisplay indicates a valuewithin the red band.
The coolant level is too low. The coolant is too hot and the engine is nolonger being cooled sufficiently.
XStop as soon as possible and allow the engine and the coolant tocool down.
XCheck the coolant level (Ypage 303). Observe the warning notesas you do so and add coolant if necessary.
DYNAMIC SELECT switch
Mercedes-AMG vehicles
General information
Use the DYNAMIC SELECT switch to select thedrive program.
Available drive programs for Mercedes-AMG GLC 43 4MATIC:
S+Sport PlusParticularly sporty drivingcharacteristics
SSportSporty driving characteris-tics
CComfortComfortable and economi-cal driving characteristics
EEconomyParticularly economicaldriving characteristics
IIndividualIndividual settings
Available drive programs for Mercedes-AMG GLC 63 4MATIC+/GLC 63 S 4MATIC+:
RACE(S‑MODEL)Driving characteristics suit-able for a race circuit
S+Sport PlusParticularly sporty drivingcharacteristics
SSportSporty driving characteris-tics
CComfortComfortable and economi-cal driving characteristics
IIndividualIndividual settings
Depending on the drive program selected thefollowing vehicle characteristics will change:
Rthe drive (engine and transmission manage-ment)
Rthe suspension
Rthe steering
Rthe driver assistance systems
RESP®(Mercedes-AMG GLC 63 4MATIC+/GLC 63 S 4MATIC+)
Rthe position of the exhaust flap (Mercedes-AMG GLC 63 4MATIC+/GLC 63 S 4MATIC+)
Rthe setting of the ECO start/stop function
Rthe availability of gliding mode
Rthe climate control
Further information on automatic drive programcharacteristics (Ypage 145).
Additionally, in drive programIyou can config-ure the respective vehicle characteristics usingthe multimedia system. You can find informa-tion about this under "DYNAMIC SELECT" in thevehicle's Digital Operator's Manual.
DYNAMIC SELECT switch139
Driving and parking
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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

!Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could bedamaged by the non-combusted fuel.
Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, theengine can be jump-started from another vehicle or from a donor battery using jumper cables.Observe the following points:
RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-start the vehicle using a donor battery or a jump-starting device.
Ryou may only jump-start the vehicle when the engine and exhaust system are cold.
RAll vehicles except vehicles with a lithium-ion battery:do not start the engine if the batteryis frozen. Let the battery thaw first.
RJump-starting may be performed only using batteries with a nominal voltage of 12 V.
ROnly use jumper cables which have a sufficient cross-section and insulated terminal clamps.
RIf the battery is fully discharged, leave the battery that is being used to jump-start connected fora few minutes before attempting to start. This charges the battery slightly.
RMake sure that the two vehicles do not touch.
Make sure that:
RThe jumper cables are not damaged.
RBare parts of the terminal clamp do not come into contact with other metal parts while the jumpercables are connected to the battery.
RThe jumper cables cannot come into contact with parts that can move when the engine is running,such as the V-belt pulley or the fan.
XSecure the vehicle by applying the electric parking brake.
XShift the transmission to position].
XMake sure that the ignition is switched off. All indicator lamps in the instrument cluster must beoff. When using the SmartKey, turn the SmartKey to positionZin the ignition lock and remove it(Ypage 131).
XSwitch off all electrical consumers, e.g. rear window defroster, lighting, etc.
XOpen the hood.
iRight-hand-drive vehicle:the jump-starting connection points may be located on the otherside of the vehicle.
Position numberkidentifies the charged battery of the other vehicle or an equivalent jump-startingdevice.
Jump-starting323
Breakdown assistance
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