brake pads MERCEDES-BENZ GLC 2019 Owners Manual

Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and drivingsafety systems adjusts automatically while acertain distance is being driven after the vehiclehas been delivered or after repairs. Full systemeffectiveness is not reached until the end of thisteach-in procedure.
New and replaced brake pads and discs onlyreach their optimum braking effect after severalhundred kilometers of driving. Compensate forthis by applying greater force to the brake pedal.
The first 1,000 miles (1,500 km)
The more you look after the engine when it isnew, the more satisfied you will be with its per-formance in the future.
RYou should therefore drive at varying vehicleand engine speeds for the first 1,000 miles(1,500 km).
RAvoid heavy loads, e.g. driving at full throttle,during this period.
RWhen changing gears manually, change up ingood time. Change gear before the tachome-ter needle is

This helps you to avoid overheating thebrakes and wearing them out excessively.
When you take advantage of engine braking, adrive wheel may not turn for some time, e.g.on a slippery road surface. This could causedamage to the drive train. This type of damageis not covered by the Mercedes-Benz war-ranty.
Heavy and light loads
GWARNING
If you rest your foot on the brake pedal while
driving, the braking system can overheat. This
increases the stopping distance and can even
cause the braking system to fail. There is a
risk of an accident.
Never use the brake pedal as a footrest. Never
depress the brake pedal and the accelerator
pedal at the same time.
!Depressing the brake pedal constantlyresults in excessive and premature wear tothe brake pads.
If the brakes have been subjected to a heavyload, do not stop the vehicle immediately. Driveon for a short while. This allows the airflow tocool the brakes more quickly.
Wet roads
If you have driven for a long time in heavy rainwithout braking, there may be a delayed reac-tion from the brakes when braking for the firsttime. This may also occur after the vehicle hasbeen washed or driven through deep water.
You have to depress the brake pedal morefirmly. Maintain a greater distance from thevehicle in front.
After driving on a wet road or having the vehiclewashed, brake firmly while paying attention tothe traffic conditions. This will warm up thebrake discs, thereby drying them more quicklyand protecting them against corrosion.
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-due may form on the brake discs and brakepads. This can result in a significantly longerbraking distance.
RIn order to prevent any salt build-up, apply thebrakes occasionally while paying attention tothe traffic conditions.
RCarefully depress the brake pedal and thebeginning and end of a journey.
RMaintain a greater distance to the vehicleahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up inthe instrument cluster and
Ryou hear a warning tone while the engine isrunning
Observe additional warning messages in themultifunction display.
The brake fluid level may be too low due tobrake pad wear or leaking brake lines.
Have the brake system checked immediately.Consult a qualified specialist workshop toarrange this.
!Vehicles with 4MATIC:function or per-formance tests may only be carried out on a 2-axle dynamometer. If you wish to operate thevehicle on such a dynamometer, please con-sult a qualified specialist workshop inadvance. You could otherwise damage thedrive train or the brake system.
!Vehicles with 4MATIC:the ESP®systemoperates automatically. If the electric parkingbrake is tested on a brake dynamometer, theengine and ignition must be switched off: turnthe SmartKey in the ignition lock to position

For safety reasons, Mercedes-Benz recom-mends only installing the following brake disksand brake pads/linings:
Rbrake disks that have been approved byMercedes-Benz
Rbrake pads/linings that have been approvedby Mercedes-Benz or that are of an equivalentstandard of quality
Other brake disks or brake pads/linings cancompromise the safety of your vehicle.
Always replace all brake disks and brake pads/linings on an axle at the same time. Alwaysinstall new brake pads/linings when replacingbrake disks.
The vehicle is equipped with lightweight brakedisks to which the wheel assembly with rim andthreaded connection is matched.
The use of brake disks other than thoseapproved by Mercedes-Benz can change thetrack width and is subject to approval, if appli-cable.
Shock-type loads when handling the brakediscs, such as when changing wheels, can leadto a reduction in comfort when driving with light-weight brake discs. Avoid shock-type loads onthe lightweight brake disks, particularly on thebrake plate.
Mercedes-Benz recommends that you only usebrake fluid that has been specially approved foryour vehicle by Mercedes-Benz, or which corre-sponds to an equivalent quality standard. Brakefluid which has not been approved forMercedes-Benz vehicles or which is not of anequivalent quality could affect your vehicle'soperating safety.
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth onthe road surface, there is a danger of hydro-planing occurring, even if:
Ryou drive at low speeds
Rthe tires have adequate tread depth
For this reason, in the event of heavy rain or inconditions in which hydroplaning may occur,you must drive in the following manner:
Rlower your speed
Ravoid ruts
Ravoid sudden steering movements
Rbrake carefully
Driving on flooded roads
!Bear in mind that vehicles traveling in frontor in the opposite direction create waves. Thismay cause the maximum permissible waterdepth to be exceeded.
Failure to observe these notes may result indamage to the engine, electrical systems andtransmission.
If you have to drive on stretches of road on whichwater has collected, please bear in mind that:
Rin the case of standing water, the water levelmay be no higher than the lower edge of thevehicle body
Ryou should drive no faster than walking pace
Winter driving
GWARNING
If you shift down on a slippery road surface in
an attempt to increase the engine's braking
effect, the drive wheels could lose their grip.
There is an increased danger of skidding and
accidents.
Do not shift down for additional engine brak-
ing on a slippery road surface.
GDANGER
If the exhaust pipe is blocked or adequate
ventilation is not possible, poisonous gases
such as carbon monoxide (CO) may enter the
vehicle. This is the case, e.g. if the vehicle
becomes trapped in snow. There is a risk of
fatal injury.
If you leave the engine or the auxiliary heating
running, make sure the exhaust pipe and area
around the vehicle are clear of snow. To
ensure an adequate supply of fresh air, open a
window on the side of the vehicle that is not
facing into the wind.
Have your vehicle winter-proofed at a qualifiedspecialist workshop at the onset of winter.
Drive particularly carefully on slippery road sur-faces. Avoid sudden acceleration, steering and
Driving tips159
Driving and parking
Z

Display messagesPossible causes/consequences andPPSolutions
The yellow$warning lamp lights up and the redI(USA only)or$(Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
XShift the transmission to position].
XVisit a qualified specialist workshop.
'(USA only)
M(Canada only)
Check Brake FluidCheck Brake FluidLevelLevel
There is not enough brake fluid in the brake fluid reservoir.
In addition, the'(USA only) orM(Canada only) warning lamplights up in the instrument cluster and a warning tone sounds.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions. Do not continue drivingunder any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
XConsult a qualified specialist workshop.
XDo not add brake fluid. This does not correct the malfunction.
&
CheckCheckBrakeBrakePadPadWearWear
The brake pads/linings have reached their wear limit.
USA only: the red'brake system warning lamp is lit while theengine is running.
GWARNING
If the brake pads/linings have reached their wear limit, braking per-formance may be impaired.
There is a risk of an accident.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
S
InoperativeInoperative
One or more main features of the mbrace system are malfunctioning.
XVisit a qualified specialist workshop.
Displaymessages233
On-b oard computer and displays
Z

Safety systems
Warning/indicatorlamp
QQSignal type
Possible causes/consequences andPPSolutions
'MQ'(USA only),M(Canada only): the red brake system warning lamp is litwhile the engine is running.
A warning tone also sounds.
GWARNING
The brake boosting effect is malfunctioning and the braking characteristics may beaffected.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to roadand traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
'MQ'(USA only),M(Canada only): the red brake system warning lamp lightsup while the engine is running.
A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to roadand traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
XDo not add brake fluid. Adding more will not correct the malfunction.
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
'QUSA only: the red brake system warning lamp is lit while the engine is running.The multifunction display also shows a display message with the&symbol.
The brake pads/linings have reached their wear limit.
XVisit a qualified specialist workshop.
258Warning and indicator lamps in the instrument cluster
On-board computer and displays

Driving abroad
An extensive Mercedes-Benz Service network isalso available in other countries. You can obtainfurther information from any authorizedMercedes-Benz Center.
Care
General notes
!When cleaning your car, do not use:
Rdry, coarse or hard cloths
Rabrasive cleaning agents
Rsolvents
Rcleaning agents containing solvents
Do not scrub.
Do not touch the surfaces and films with hardobjects, e.g. rings or ice scrapers. Otherwise,you may scratch or damage the surfaces andfilms.
!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.
HEnvironmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
Regular care of your vehicle is a condition forretaining the quality in the long term.
Use care products and cleaning agents recom-mended and approved by Mercedes-Benz.
Washing the vehicle and cleaning the
paintwork
Automatic car wash
GWARNING
Braking efficiency is reduced after washing
the vehicle. There is a risk of an accident.
After the vehicle has been washed, brake
carefully while paying attention to the traffic
conditions until full braking power is restored.
!When Active Brake Assist, Active DistanceAssist DISTRONIC or the HOLD function isactivated, the vehicle brakes automatically incertain situations.
To avoid damage to the vehicle, deactivatethese systems in the following or similar sit-uations:
Rwhen towing the vehicle
Rin the car wash
!Never clean your vehicle in a TouchlessAutomatic Car Wash as these use specialcleaning agents. These cleaning agents candamage the paintwork or plastic parts.
!Make sure that:
Rthe side windows and sliding sunroof areclosed completely
Rthe blower is switched off
Rthe windshield wiper switch is in position

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