2018 MERCEDES-BENZ GLC SUV brake fluid

Problem (malfunction) ...................155
Pulling away ................................... 139
Starting the engine ........................ 138
Steering wheel paddle shifters ...... 152
Trailer towing ................................. 150
Transmission position display
(DIRECT SELECT lever) ................... 148
Transmission positions .................. 148
Automatic transmission emer-
gency mode ....................................... 155
Axle load, permissible (trailer tow-
ing) ...................................................... 384
B
Back button ....................................... 281
Backup lamp
Display message ............................ 251
Replacing bulbs .............................1 19
Bag hook ............................................ 296
Ball coupling
Installing ........................................ 216
Removing ....................................... 218
BAS (Brake Assist System) ................. 67
Battery (SmartKey)
Checking .......................................... 81
Important safety notes .................... 81
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 340
Display message ............................ 253
Important safety notes .................. 338
Jump starting ................................. 341
Belt warning ......................................... 49
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 232
Display message ............................ 258
Notes/function .............................. 205
see Active Blind Spot Assist
Blower
see Climate control
Bluetooth
®
Searching for a mobile phone ........2 88
see also Digital Operator's Man-
ual ..................................................2 80Brake
Active Brake Assist with cross-
traffic function ................................. 73
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 245
Notes ............................................. 380
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 245
Brakes
ABS ..................................................6 6
Adaptive Brake Assist ...................... 68
BAS .................................................. 67
Brake fluid (notes) ......................... 380
Display message ............................ 240
EBD .................................................. 73
Hill start assist ............................... 140
HOLD function ............................... 178
Important safety notes .................. 163
Maintenance .................................. 164
Parking brake ................................ 159
Ridi ng ti
ps ...................................... 163
Warning lamp ................................. 270
Breakdown assistance
Where will I find...? ........................ 332
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 36
Buttons on the steering wheel ......... 221
C
California
Important notice for retail cus-
tomers and lessees .......................... 29
Calling up a malfunction
see Display messages
Calling up the climate control bar
Multimedia system ........................ 284
6Index

Service messagesee ASSYST PLUS
Service products
Brake fluid .....................................3 80
Coolant (engine) ............................ 380
Engine oil ....................................... 379
Fuel ................................................ 377
Important safety notes .................. 377
Refrigerant (air-conditioning sys-
tem) ............................................... 381
Washer fluid ................................... 381
Setting the date/time format
see also Digital Operator's Man-
ual ..................................................2 80
Setting the language
see also Digital Operator's Man-
ual ..................................................2 80
Setting the time
see also Digital Operator's Man-
ual ..................................................2 80
Settings
Factory (on-board computer) ......... 235
On-board computer ....................... 231
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 236
Side impact air bag .............................5 1
Side marker lamp (display mes-
sage) ................................................... 251
Side running board
Cleaning ......................................... 328
Side windows
Cleaning ......................................... 327
Convenience closing feature ............ 92
Convenience opening feature ..........9 2
Important safety information ........... 91
Opening/closing .............................. 91
Problem (malfunction) .....................9 4
Resettin g........................................ .93
Reversin gfeature ............................ .91
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 280
Ski and snowboard bag .................... 292
Sliding sunroof
Important safet

y notes .................... 94
Problem (malfunction) ..................... 97
see Panorama roof with power
tilt/sliding panel SmartKey
Changing the battery ....................... 81
Changing the programming .............8 0
Checking the battery ...................... .81
Convenience closing feature ............ 93
Convenience opening feature .......... 92
Display message ............................ 267
Door central locking/unlocking ...... .78
Important safety notes .................... 78
KEYLESS-GO start function .............. 80
Loss .................................................8 2
Mechanical key ................................ 80
Overview .......................................... 78
Positions (ignition lock) ................. 136
Problem (malfunction) ..................... 82
Starting the engine ........................ 138
Smartphone
Starting the engine ........................ 139
SMS
see also Digital Operator's Man-
ual .................................................. 280
Snow chains ...................................... 351
Socket (12 V)
Cargo compartment ....................... 305
Center console .............................. 305
General notes ................................ 305
Rear compartment .........................3 05
Sound
Switching on/off ........................... 281
Special seat belt retractor .................. 60
Specialist workshop ............................ 32
Speed, controlling
see Cruise control
Speedometer
Activating/deactivating the addi-
tional spee dometer ........................ 235
Di

gital ............................................ 225
In the Instrument cluster ................. 37
Segments ...................................... 220
Selecting the display unit ...............2 34
SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 71
Warning lamp ................................. 273
Sports exhaust system
AMG ............................................... 142
Standing lamps
Display message ............................ 251
20Index

Vehicle levelAIR BODY CONTROL ...................... 185
Display message ............................ 256
Video
Operating the DVD ......................... 229
see also Digital Operator's Man-
ual .................................................. 280
VIN
Seat ............................................... 377
Type plate ...................................... 376
W
Warning and indicator lampsABS ................................................ 271
Active Brake Assist ........................ 277
Airbag ............................................ 274
Brakes ........................................... 270
Coolant .......................................... 275
Distance warning ........................... 277
Engine diagnostics ......................... 274
ESP
®.............................................. 271
ESP®OFF ....................................... 273
Fuel tank ........................................ 274
General notes ................................ 268
Overview .......................................... 37
Parking brake ................................ 274
PASSENGER AIR BAG ...................... 45
Reserve fuel ................................... 274
Restraint system ............................ 274
Seat belt ........................................ 269
SPORT handling mode ................... 273
Steering ......................................... 279
Tire pressure monitor .................... 278
Warranty .............................................. 29
Washer fluid
Display message ............................ 267
Weather display (COMAND)
see also Digital Operator's Man-
ual .................................................. 280
Wheel and tire combinations
Tires ............................................... 373
Wheel bolt tightening torque ........... 373
Wheel chock ...................................... 370
Wheels
Changing a wheel .......................... 369
Checking ........................................ 349
Cleaning ......................................... 326 Important safety notes .................. 349
Information on driving .................... 349
Interchanging/changing ................ 369
Mounting a new wheel ................... 372
Mounting a wheel .......................... 370
Removing a wheel .......................... 372
Snow chains .................................. 351
Storing ........................................... 370
Tightening torque ........................... 373
Wheel size/tire size ....................... 373
Window curtain air bag
Display message ............................ 248
Operation ......................................... 51
Windows
see Side windows
Windshield
Defrosting ...................................... 130
Windshield washer fluid
see Windshield washer system
Windshield washer system
Adding washer fluid ....................... 322
Important safety notes .................. 381
Windshield wipers
Problem (malfunction) ................... 123
Rear window wiper ........................ 121
Replacing the wiper blades ............ 121
Switchi
ng on/off ........................... 120
Winter driving
Important safety notes .................. 351
Slippery road surfaces ................... 165
Snow chains .................................. 351
Winter operation
Radiator cover ............................... 319
Summer tires ................................. 351
Winter tires
M+S tires ....................................... 351
Wiper arm
Moving to a vertical position .......... 121
Wiper blades
Cleaning ......................................... 327
Important safety notes .................. 121
Replacing ....................................... 121
Replacing (rear window) ................ 122
Replacing (windshield) ................... 121
Without changing gears
Display message ............................ 265
Wooden trim (cleaning instruc-
tions) .................................................. 330
Index25

essary, contact us at one of the following
addresses.
In the USA
Customer Assistance Center
Mercedes-Benz USA, LLC
3 Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Customer Relations Department
Mercedes-Benz Canada, Inc.
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Reporting safety defects
USA only:
The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz
USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go tohttp://
www.safercar.gov; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Observe the notes in this Operator's Manual
regarding the correct operation of your vehi-
cle and possible damage to the vehicle. Dam-
age to the vehicle which is caused by violation of these notes is not covered by the
Mercedes-Benz implied warranty or the new
or used-vehicle warranty.
QR code for rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code.
Data stored in the vehicle
Data storage
A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
Rthe vehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
This includes, for example:
Roperating conditions of system components.
For example, fluid levels
Rthe vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, accelerator pedal
position
Rmalfunctions and defects in important system
components, e.g. lights, brakes
Rvehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy-
ment, intervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
Data stored in the vehicle33
Introduction
Z

Switching the rear window wipers
on/off
:èSwitch
2bWipes with washer fluid
3ISwitches on intermittent wiping
40 Switches off intermittent wiping
5b Wipes with washer fluid
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XTurn switch :on the combination switch to
the corresponding position.
When the rear window wiper is switched on,
the è symbol appears in the instrument
cluster.
Replacing the wiper blades
Important safety notes
GWARNING
If the windshield wipers begin to move while
you are changing the wiper blades, you could be trapped by the wiper arm. There is a risk of
injury.
Always switch off the windshield wipers and
ignition before changing the wiper blades.
!Never open the hood/tailgate if a wiper arm
has been folded away from the windshield/
rear window.
Never fold a windshield wiper arm without a
wiper blade back onto the windshield/rear
window.
Hold the windshield wiper arm firmly when
you change the wiper blade. If you release the
wiper arm without a wiper blade and it falls
onto the windshield/rear window, the wind- shield/rear window may be damaged by the
force of the impact.
Mercedes-Benz recommends that you have
the wiper blades changed at a qualified spe-
cialist workshop.
!To avoid damaging the wiper blades, make
sure that you touch only the wiper arm of the
wiper.
Changing the windshield wiper blades
Moving the wiper arms to a vertical posi-
tion
On vehicles without KEYLESS-GO or KEY-
LESS‑GO start function:
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 136).
XSet the windshield wipers to the °posi-
tion on the combination switch.
XWhen the wiper arms are vertical to the hood,
turn the SmartKey to position uin the igni-
tion lock and remove SmartKey.
XFold the wiper arm away from the windshield.
On vehicles with KEYLESS-GO or KEY-
LESS‑GO start function:
XSwitch off the engine.
XRemove your foot from the brake pedal.
XSet the windshield wiper to the °position
on the combination switch.
XPress the Start/Stop button repeatedly until
the windshield wiper starts.
XWhen the wiper arms are vertical to the hood,
press the Start/Stop button.
XFold the wiper arm away from the windshield.
Removing the wiper blades
Windshield wipers121
Lights and windshield wipers
Z

RIn order to prevent any salt build-up, apply the
brakes occasionally while paying attention to
the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately. Consult a qualified specialist workshop to
arrange this.
!Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. If the electric parking
brake is tested on a brake dynamometer, the
engine and ignition must be switched off: turn
the SmartKey in the ignition lock to position
u or1 or press the Start/Stop button
repeatedly in accordance with the given
SmartKey positions.
Braking triggered automatically by ESP
®may
cause severe damage to the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist System)
(
Ypage 67) and Active Brake Assist with cross-
traffic function (Ypage 73). For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake pads/ linings on a
n axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched.
The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shock-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for
your vehicle by Mercedes-Benz, or which corre-
sponds to an equivalent quality standard. Brake
fluid which has not been approved for
Mercedes-Benz vehicles or which is not of an
equivalent quality could affect your vehicle's
operating safety.
Driving on wet roads
Hydroplaning
If water has accumulated to a certain depth on
the 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 in
conditions in which hydroplaning may occur,
you must drive in the following manner:
Rlower your speed
Ravoid ruts
164Driving tips
Driving and parking

Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th ered $ brakesystem warning lamp is lit while th e
engin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis tis temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis tis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XRestart th eengine.
Display messages24 5
On-board computer and displays
Z

Safety systems
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
$JN$ (USA only), J(Canada only): the red brake system warning lamp is lit
while the engine is running.
A warning tone also sounds.
GWARNING
The brake boosting effect is malfunctioning and the braking characteristics may be
affected.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 158).
XConsult a qualified specialist workshop.
XObserve the additional display messages in the multifunction display.
$JN $ (USA only), J(Canada only): the red brake system warning lamp lights
up 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 road
and traffic conditions. Do not continue driving under any circumstances.
XSecure the vehicle against rolling away (Ypage 158).
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.
$N USA 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.
270Warning and indicator lamps in the instrument cluster
On-board computer and displays