ABS MERCEDES-BENZ GLC 2019 User Guide

BAS (Brake Assist System)
General information
BAS operates in emergency braking situations.If you depress the brake pedal quickly, BASautomatically boosts the braking force, thusshortening the stopping distance.
Important safety notes
iObserve the "Important safety notes" sec-tion (Ypage 65).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking
XKeep the brake pedal firmly depressed untilthe emergency braking situation is over.ABS prevents the wheels from locking.
The brakes will function as usual once yourelease the brake pedal. BAS is deactivated.
Active Brake Assist
General information
iObserve the "Important safety notes" sec-tion (Ypage 65).
Active Brake Assist consists of a distance warn-ing function with an autonomous braking func-tion and Adaptive Brake Assist.
Active Brake Assist can help you to minimize therisk of a collision with the vehicle traveling infront or reduce the effects of such a collision.
If Active Brake Assist detects that there is a riskof collision, you will be warned visually andacoustically. If you do not react to the visual andaudible collision warning, autonomous brakingcan be initiated in critical situations. If you applythe brake yourself in a critical situation, Adap-tive Brake Assist of the Active Brake Assist sys-tem supports you.
Important safety notes
In particular, the detection of obstacles can beimpaired if:
RThere is dirt on the sensors or anything elsecovering the sensors
RThere is snow or heavy rain
RThere is interference by other radar sources
RThere are strong radar reflections, for exam-ple in parking garages
RA narrow vehicle is traveling in front, e.g. amotorbike
RA vehicle is traveling in front on a different line
RYou are driving a new vehicle or servicing onthe Active Brake Assist system has just beencarried out
Observe the important safety notes in the"Breaking-in notes" section (Ypage 130).
Following damage to the front end of the vehicle,have the configuration and operation of theradar sensor checked at a qualified specialistworkshop. This also applies to collisions at slowspeeds where there is no visible damage to thefront of the vehicle.
Activating/deactivating
Active Brake Assist is automatically active afterswitching on the ignition.
You can activate or deactivate Active BrakeAssist (Ypage 220) in the on-board computer.When deactivated, the distance warning func-tion and the autonomous braking function arealso deactivated.
If Active Brake Assist is deactivated, the

reacting to moving objects that have alreadybeen detected as such at least once over theperiod of observation.
Up to a speed of approximately 44 mph(70 km/h), Adaptive Brake Assist reacts to sta-tionary obstacles.
If adaptive Brake Assist demands particularlyhigh braking force, preventative passenger pro-
tection measures (PRE-SAFE®) are activatedsimultaneously (Ypage 57).
XKeep the brake pedal depressed until theemergency braking situation is over.ABS prevents the wheels from locking.
The brakes will work normally again if:
Ryou release the brake pedal
Rthere is no longer any danger of a collision
Rno obstacle is detected in front of your vehicle
Adaptive Brake Assist is then deactivated.
Important safety notes
iObserve the "Important safety notes" sec-tion for driving safety systems (Ypage 65).
GWARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
GWARNING
Adaptive Brake Assist does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As a result, the Adaptive Brake Assist may not
intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
Always adapt your speed to suit the prevailing
road and traffic conditions.
Due to the nature of the system, particularlycomplicated but non-critical driving conditionsmay also cause Brake Assist to intervene.
If adaptive Brake Assist is not available due to amalfunction in the radar sensor system, thebrake system remains available with full brakeboosting effect and BAS.
ESP®(Electronic Stability Program)
General notes
iObserve the "Important safety notes" sec-tion (Ypage 65).
ESP®monitors driving stability and traction, i.e.power transmission between the tires and theroad surface.
If ESP®detects that the vehicle is deviating fromthe direction desired by the driver, one or morewheels are braked to stabilize the vehicle. Theengine output is also modified to keep the vehi-cle on the desired course within physical limits.
ESP®assists the driver when pulling away on
wet or slippery roads. ESP®can also stabilizethe vehicle during braking.
4ETS (Electronic Traction System)
iObserve the "Important safety notes" sec-tion (Ypage 65).
ETS traction control is part of ESP®. On vehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-vidually if they spin. This enables you to pullaway and accelerate on slippery surfaces, forexample if the road surface is slippery on oneside. In addition, more drive torque is transfer-red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP®.
Important safety notes
iObserve the "Important safety notes" sec-tion (Ypage 65).
68Driving safety systems
Safety

Parking Assist PARKTRONIC is only an aid. It isnot a replacement for your attention to yourimmediate surroundings. You are alwaysresponsible for safe maneuvering, parking andexiting a parking space. Make sure that thereare no persons, animals or objects in the maneu-vering area while maneuvering and parking in/leaving parking spaces.
!When parking, pay particular attention toobjects above or below the sensors, such asflower pots or trailer drawbars. Parking AssistPARKTRONIC does not detect such objectswhen they are in the immediate vicinity of thevehicle. You could damage the vehicle or theobjects.
The sensors may not detect snow and otherobjects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic carwash, the compressed-air brakes of a truck ora pneumatic drill could cause Parking AssistPARKTRONIC to malfunction.
Parking Assist PARKTRONIC may not functioncorrectly on uneven terrain.
!If you do not need the trailer tow hitch,remove the detachable ball coupling. ParkingAssist PARKTRONIC measures the minimumdetection range to an obstacle from thebumper, not the ball coupling.
Parking Assist PARKTRONIC is activated auto-matically when you:
Rswitch on the ignition
Rshift the transmission to position[,^or\\
Parking Assist PARKTRONIC is deactivated atspeeds above 11 mph (18 km/h). It is reactiva-ted at lower speeds.
Parking Assist PARKTRONIC is deactivated forthe rear area when you establish an electricalconnection between your vehicle and a trailer.
Range of the sensors
Parking Assist PARKTRONIC does not take intoaccount obstacles located:
Rbelow the detection range, such as persons,animals or objects
Rabove the detection range, e.g. overhangingloads, tail sections or loading ramps of trucks
CSensors in the front bumper, left-hand side(example)
CApprox. 24 in (approx. 60 cm) (corners)
DApprox. 32 in (approx. 80 cm) (corners)

Ryou switch on the turn signals. In this event,the warnings are suppressed for a certainperiod of time.
Ra driving safety system intervenes, e.g. ABS,
BAS or ESP®.
Adaptive
WhenAdaptiveAdaptiveis selected, no warning vibra-tion occurs if:
Ryou switch on the turn signals. In this event,the warnings are suppressed for a certainperiod of time.
Ra driving safety system intervenes, e.g. ABS,
BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid anobstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
In order that you are warned only when neces-sary and in good time if you cross the lane mark-ing, the system detects certain conditions andwarns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on abend
Rthe road has very wide lanes, e.g. a freeway
Rthe system detects solid lane markings
The warning vibration occurs later if:
Rthe road has narrow lanes
Ryou cut the corner on a bend
Driving Assistance Plus package
General notes
The Driving Assistance Plus Package consists ofActive Distance Assist DISTRONIC(Ypage 162), Active Blind Spot Assist(Ypage 197) and Active Lane Keeping Assist(Ypage 200).
Active Blind Spot Assist
General notes
Active Blind Spot Assist monitors the areas oneither side of the vehicle that are not visible tothe driver with two lateral, rear-facing radar sen-sors. A warning lamp lights up in the exteriormirrors and draws your attention to vehicles
detected in the monitored area. If you thenswitch on the corresponding turn signal tochange lanes, you will also receive a visual warn-ing and hear a warning tone. If a risk of lateralcollision is detected, corrective braking mayhelp you avoid a collision. Before a course-cor-recting brake application, Active Blind SpotAssist evaluates the space in the direction oftravel and at the sides of the vehicle. For this,Active Blind Spot Assist uses the forward-facingradar sensors.
Active Blind Spot Assist supports you from aspeed of approximately 20 mph(30 km/h).
Important safety notes
Active Blind Spot Assist is only an aid and is nota substitute for attentive driving.
GWARNING
Active Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
As a result, Active Blind Spot Assist may nei-
ther give warnings nor intervene in such sit-
uations. There is a risk of an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
iUSA only: This device has been approved bythe FCC as a "Vehicular Radar System". Theradar sensor is intended for use in an auto-motive radar system only. Removal, tamper-ing, or altering of the device will void any war-ranties, and is not permitted by the FCC. Donot tamper with, alter, or use in any non-approved way.
Any unauthorized modification to this devicecould void the user's authority to operate theequipment.
iCanada only: This device complies withRSS-210 of Industry Canada. Operation issubject to the following two conditions:
1. This device may not cause interference,and
2. This device must accept any interferencereceived, including interference that maycause undesired operation of the device.
Removal, tampering, or altering of the devicewill void any warranties, and is not permitted.
Driving systems197
Driving and pa rking
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the lines on the assistance graphic display areshown in green (Ypage 219). Active LaneKeeping Assist is ready for use.
XTo deactivate:press buttonD.Indicator lampCgoes out. The Active LaneKeeping Assist is deactivated. TheLaneLaneKeeping Assist OffKeeping Assist Offmessage appears inthe multifunction display.
Selecting Standard or Adaptive setting
XIn theDriveAssistDriveAssistmenu on the on-boardcomputer, select theActive Lane Keep‐Active Lane Keep‐ing Assisting Assistfunction (Ypage 221).
XSelect settingStandardStandardorAdaptiveAdaptive.WhenStandardStandardis selected, no warning vibra-tion occurs if:
Ryou switch on the turn signals. In this event,the warnings are suppressed for a certainperiod of time.
Ra driving safety system intervenes, such as
ABS, BAS or ESP®.
WhenAdaptiveAdaptiveis selected, no warning vibra-tion occurs if:
Ryou switch on the turn signals. In this event,the warnings are suppressed for a certainperiod of time.
Ra driving safety system intervenes, e.g.
ABS, BAS or ESP®.
Ryou accelerate hard, e.g. kickdown.
Ryou brake hard.
Ryou steer actively, e.g. swerve to avoid anobstacle or change lanes quickly.
Ryou cut the corner on a sharp bend.
To ensure that you are warned only when nec-essary and in good time if you cross the lanemarkings, the system detects certain conditionsand warns you accordingly.
The warning vibration occurs earlier if:
Ryou approach the outer lane marking on abend
Rthe road has very wide lanes, e.g. a freeway
Rthe system detects solid lane markings
The warning vibration occurs later if:
Rthe road has narrow lanes
Ryou cut the corner on a bend
Towing a trailer
When you attach a trailer, make sure you havecorrectly established the electrical connection.
This can be accomplished by checking the trailerlighting.
Towing a trailer
Important safety notes
GWARNING
Installing an unsuitable ball coupling may
result in overloading of the trailer tow hitch
and the rear axle. This applies especially if the
ball coupling in question is longer or angled
differently. This could seriously impair the
driving characteristics and the trailer can
come loose. There is a risk of an accident.
You should only ever install a ball coupling
that has the permissible dimensions and that
is designed to meet your trailer-towing
requirements. Do not modify the ball coupling
or the trailer tow hitch.
You will find the values approved by the manu-facturer on the vehicle identification plates andthose for the towing vehicle under "Technicaldata" (Ypage 364).
GWARNING
When the vehicle/trailer combination begins
to lurch, you could lose control of it. The vehi-
cle/trailer combination could even rollover.
There is a risk of an accident.
On no account should you attempt to
straighten up the vehicle/trailer combination
by increasing the speed. Reduce vehicle
speed and do not countersteer. Apply the
brake as necessary.
!If you have a trailer tow hitch retrofitted,changes to the engine cooling system may benecessary, depending on the vehicle type.
If you have a trailer tow hitch retrofitted,observe the anchorage points on the chassisframe.
The installation of a trailer tow hitch is only per-missible if a towing weight is specified in yourvehicle documents. If this is not the case, thenthe vehicle is not approved for the towing of atrailer.
202Towing a trailer
Driving an d parking

Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions
%QThe yellow ABS warning lamp is lit while the engine is running.
ABS (anti-lock braking system) is malfunctioning.
If there is an additional warning tone, the EBD (electronic brake force distribution)is malfunctioning.
Other driving systems and driving safety systems may also malfunction.
GWARNING
The brake system continues to function normally, but without the functions listedabove. The front and rear wheels could therefore lock if you brake hard, for exam-ple.
The steerability and braking characteristics may be severely affected. The brakingdistance in an emergency braking situation can increase.
If ESP®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is defective, there is also a possibility that other systems,such as the navigation system or the automatic transmission, will not be available.
'M

XTo reduce the tire pressure:depress pres-sure release buttonCnext to pressuregaugeD.
XWhen the tire pressure is correct, unscrew thefiller hose from the valve of the sealed tire.Tire sealant may escape when the filler hose isunscrewed.
XScrew the valve cap onto the tire valve of thesealed tire.
XPull the tire sealant bottle out of the tire infla-tion compressor.
The filler hose remains attached to the tiresealant bottle.
XDrive to the nearest qualified specialist work-shop and have the tire changed there.
XHave the tire sealant bottle replaced as soonas possible at a qualified specialist workshop.
XHave the tire sealant bottle replaced everyfour years at a qualified specialist workshop.
Battery (vehicle)
12 V battery – important safety notes
Special tools and expert knowledge are requiredwhen working on the battery, e.g. removal andinstallation. You should therefore have all workinvolving the battery carried out at a qualifiedspecialist workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can
lead to function restrictions applying to
safety-relevant systems, e.g. the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci-
dent, contact a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car-
ried out at a qualified specialist workshop.
For further information about ABS and ESP®,see (Ypage 65) and (Ypage 68).
All vehicles except vehicles with a lithium-ion battery:
GWARNING
Electrostatic build-up can lead to the creation
of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture forms whencharging the battery as well as when jump-start-ing.
Always make sure that neither you nor the bat-tery is electrostatically charged. A build-up ofelectrostatic charge can be caused, for exam-ple:
Rby wearing clothing made from syntheticfibers
Rdue to friction between clothing and seats
Rif you push or pull the battery across the car-pet or other synthetic materials
Rif you rub the battery with a cloth
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
Battery (vehicle)319
Breakdo wn assis tan ce
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RMake sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
All vehicles:
HEnvironmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
!Have the battery regularly checked at aqualified specialist workshop.
Comply with the service intervals in the Main-tenance Booklet, or contact a qualified spe-cialist workshop for more information.
!Always have work on batteries carried out ata qualified specialist workshop.
Should it, in exceptional circumstances, beabsolutely necessary to disconnect the 12-volt battery yourself, please observe the fol-lowing:
RSecure the vehicle to prevent it from rollingaway.
RSwitch off the ignition.
RDisconnect the negative terminal first andthen the positive terminal.
The transmission is locked in position]after disconnecting the battery.
After the work has been done, install the bat-tery and replace the cover of the positive ter-minal clamp firmly.
Comply with safety precautions and take pro-tective measures when handling batteries.
Risk of explosion.
Fire, open flames and smoking areprohibited when handling the bat-tery. Avoid creating sparks.
Electrolyte or battery acid is corro-sive. Avoid contact with skin, eyes orclothing. Wear suitable protectiveclothing, especially gloves, apronand faceguard. Immediately rinseelectrolyte or acid splashes off withclean water. Contact a physician ifnecessary.
Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz recom-mends that you only use batteries which havebeen tested and approved for your vehicle by
320Battery (vehicle)
Breakdown assistance

Use only SAE 0W-40 or SAE 5W-40 engine oilsfor Mercedes-AMG vehicles.
iMB approval is indicated on the oil contain-ers.
Filling capacities
The following values refer to an oil changeincluding the oil filter.
ModelCapacity
Mercedes-AMGGLC 63 4MATIC+Coupe
Mercedes-AMGGLC 63 S 4MATIC+Coupe
9.5 US qt (9.0l)
All other models6.9 US qt (6.5l)
Additives
!Do not use any additives in the engine oil.This could damage the engine.
Brake fluid
GWARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake
fluid is too low, vapor pockets may form in the
brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident.
You should have the brake fluid renewed at
the specified intervals.
When handling brake fluid, observe the impor-tant safety notes on service products(Ypage 358).
The brake fluid change intervals can be found inthe Maintenance Booklet.
Only use brake fluid approved by Mercedes-Benz in accordance with MB-Freigabe or MB-Approval 331.0.
Information on approved brake fluid can beobtained in the following places:
Rfrom an authorized Mercedes-Benz Center
Rin the Mercedes-Benz Specification for Ser-vice Products by entering the designation
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
iHave the brake fluid regularly replaced at aqualified specialist workshop in accordancewith the replacement intervals and thereplacement confirmed in the MaintenanceBooklet.
Coolant
Important safety notes
GWARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.
Let the engine cool down before you add anti-
freeze. Make sure that antifreeze is not spilled
next to the filler neck. Thoroughly clean the
antifreeze from components before starting
the engine.
!Only add coolant that has been premixedwith the desired antifreeze protection. Youcould otherwise damage the engine.
You can find additional notes on the coolant inthe following places:
Rin the Mercedes-Benz Specifications forService Products, MB BeVo 310.1
-on the Internet athttp://bevo.mercedes-benz.com
-on the Mercedes-Benz BeVo app
Ra qualified specialized workshop
!Always use a suitable coolant mixture, evenin countries where high temperatures prevail.
Otherwise, the engine cooling system is notsufficiently protected from corrosion andoverheating.
iHave the coolant regularly replaced at aqualified specialist workshop and the replace-ment confirmed in the Maintenance Booklet.
Service products and filling capacities361
Technical data
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