radiator MERCEDES-BENZ GLC 2017 Owners Manual

High-beam headlamps
Adaptive Highbeam Assist ............. 113
Display message ............................ 239
Replacing bulbs ............................. 117
Switching on/off ........................... 112
Hill start assist .................................. 136
HOLD function
Activating ....................................... 172
Activation conditions .................... .1 72
Deactivating ................................... 172
Display message ............................ 247
Function/notes ............................ .1 71
General notes ................................ 171
Home address
see also Digital Operator's Man-
ual ................................................. .2 68
Hood
Closing .......................................... .3 07
Display message ............................ 254
Important safety notes .................. 306
Opening ......................................... 306
Horn ...................................................... 35
HUD
see Head-up display
Hydroplaning ..................................... 161
I
Ignition lock
see Key positions
Immobilizer .......................................... 76
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 265
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 307
Instrument cluster
Overview .......................................... 36
Warning and indicator lamps ........... 36
Instrument cluster lighting .............. 208
Interior lighting
Automatic control .......................... 115
Control .......................................... .1 15
Overview ........................................ 115
Reading lamp ................................. 115 iPod ®
see also Digital Operator's Man-
ual ................................................. .2 68
J Jack
Using ............................................. 357
Jump starting (engine) ..................... .3 28
K Key positions
SmartKey ....................................... 132
Start/Stop button .......................... 133
KEYLESS-GO
Activating ......................................... 78
Convenience closing feature ............ 92
Deactivation ..................................... 78
Locking ............................................ 78
Removing the Start/Stop button ... 133
Start function ................................... 79
Unlocking ......................................... 78
Kickdown
Driving tips ................................... .1 44
Manual gearshifting ....................... 147
Knee bag .............................................. 50
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 196
Activating/deactivating (on-
board computer) ............................ 221
Display message ............................ 245
Function/information .................... 195
see Active Lane Keeping Assist
Lane Tracking package ..................... 193
Lap time (RACETIMER) ...................... 225
LATCH-type (ISOFIX) child seat
anchors ................................................ 61
Level control
Display message ............................ 245
see AIR BODY CONTROL
License plate lamp (display mes-
sage) ................................................... 239 Index 13

Function/notes ............................. 175
Important safety notes .................. 175
Problem (malfunction) ................... 178
Range of the sensors ..................... 176
Warning display ............................. 177
PASSENGER AIR BAG
Display message ............................ 237
Indicator lamps ................................ 44
Problems (malfunction) .................. 237
Perfume atomizer
Operating ....................................... 128
Problem (malfunction) ................... 129
Setting the perfume intensity
(multimedia system) ...................... 272
Vial ................................................ 128
Pets in the vehicle ............................... 64
Phone book
see also Digital Operator's Man-
ual .................................................. 268
Plastic trim (cleaning instruc-
tions) .................................................. 317
Power washers .................................. 313
Power windows
see Side windows
PRE-SAFE ®
(anticipatory occupant
protection)
Display message ............................ 234
Operation ......................................... 57
PRE-SAFE ®
Brake
Activating/deactivating ................. 221
Display message ............................ 234
Function/notes ................................ 73
Important safety notes .................... 74
Warning lamp ................................. 265
PRE-SAFE ®
PLUS (anticipatory
occupant protection PLUS)
Operation ......................................... 58
Protection against theft
ATA (Anti-Theft Alarm system) ......... 76
Immobilizer ...................................... 76
Protection of the environment
General notes .................................. 27
Pulling away
Automatic transmission ................. 135
General notes ................................ 135
Hill start assist ............................... 136
Trailer ............................................ 135 Q QR code
Mercedes-Benz Guide App ................. 1
Rescue card ..................................... 32
Qualified specialist workshop ........... 31
Quick access for audio and tele-
phone
Changing the station/music
track .............................................. 271
R RACE TIMER (on-board computer,
Mercedes-AMG vehicles) .................. 225
Radar sensor system
Display message ............................ 235
Radiator cover ................................... 307
Radio
Selecting a station ......................... 216
Radio mode
see also Digital Operator's Man-
ual .................................................. 268
Radio-wave reception/transmis-
sion in the vehicle
Declaration of conformity ................ 30
Rain closing feature (panorama
roof with power tilt/sliding panel) .... 95
Reading lamp ..................................... 115
Rear compartment
Setting the air vents ...................... 130
Rear fog lamp
Display message ............................ 239
Switching on/off ........................... 112
Rear seat
Adjusting the angle of the backr-
ests ................................................ 283
Rear seat backrest
Display message ............................ 254
Rear seats
Display message ............................ 254
Rear view camera
"Reverse parking" function ............ 184
Cleaning instructions ..................... 316
Coupling up a trailer function ........ 186
Display in the multimedia system .. 183
General notes ................................ 182 Index 17

Rear window wiper ........................ 12 0
Replacin g th e wiper blade s ............ 120
Switching on/off ........................... 119
Winter driving
Important safety notes .................. 338
Slippery road surfaces ................... 161
Snow chains .................................. 338
Winter operation
Radiator cover ............................... 307
Summer tires ................................. 338
Winter tires
M+S tires ....................................... 338
Wiper blades
Cleaning ......................................... 315
Important safety notes .................. 120
Replacing ....................................... 120
Replacing (rear window) ................ 121
Replacing (windshield) ................... 120
Without changing gears
Display message ............................ 253
Wooden trim (cleaning instruc-
tions) .................................................. 317
Workshop
see Qualified specialist workshop Index 25

Engine compartment
Hood
Important safety notes
G WARNING
If the hood is unlatched, it may open up when
the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving. Before
every trip, ensure that the hood is locked.
G WARNING
When opening and closing the hood, it may
suddenly fall into the closed position. There is
a risk of injury to persons within range of
movement of the hood.
Open and close the hood only when no one is
within its range of movement.
G WARNING
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.
G WARNING
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: R
switch off the ignition R
never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
Opening the hood
G WARNING
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.
G WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield wip-
ers or the hood.
X
Make sure that the windshield wipers are
turned off. X
Pull release lever C on the hood.
The hood is released.306
Engine compartment
Maintenance and care

X
Reac h int o th e gap, pull hoo d catch handle D
up and lift th e hood.
If you lift th e hoo d by approximately 15 in
(40 cm), th e hoo d is opened and held open
automatically by th e gas-filled strut .
Closing the hood X
Lowe r th e hoo d and let it fall from a height of
approximately 8 in (20 cm).X
Chec k that th e hoo d has engage d properly.
If th e hoo d can be raised slightly, it is no t
properly engaged. Open it again and close it
wit h a littl e mor e force .
Radiator Do no t cover up th e radiator, suc h as wit h a
thermal mat or insec t protection cover . Other -
wise, th e value s of th e European on-board diag-
nostics may be affected. Some of these read -
ing s are require d by law and mus t be accurat e at
all times .
Engine oil
Important safety notes
G WARNIN G
Certain component s in th e engin e compart-
ment, suc h as th e engine, radiato r and part s
of th e exhaust system, can become ver y hot .
Workin g in th e engin e compartmen t poses a
ris k of injury.
Wher e possible, let th e engin e cool down and
touch only th e component s describe d in th e
following. G WARNIN G
The engin e compartmen t contain s moving
components. Certain components, suc h as
th e radiato r fan , may continu e to run or start
again suddenly when th e ignition is off . There
is a ris k of injury.
If you need to do any wor k inside th e engin e
compartment: R
switch off th e ignition R
never reac h int o th e area wher e there is a
ris k of danger from moving components,
suc h as th e fan rotation area R
remove jewelr y and watches R
keep items of clothing and hair , for exam-
ple, away from moving part s
G WARNIN G
If engin e oil comes int o contact wit h hot com-
ponents in th e engin e compartment, it may
ignite. There is a ris k of fir e and injury.
Mak e sur e that engin e oil is no t spilled next to
th e filler neck . Let th e engin e cool down and
thoroughly clean th e engin e oil off th e com-
ponents before starting th e engine.
G WARNIN G
Opening th e hoo d when th e engin e is over-
heated or when there is a fir e in th e engin e
compartmen t could expos e you to hot gase s
or other servic e products . There is a ris k of
injury.
Let an overheate d engin e cool down before
opening th e hood. If there is a fir e in th e
engin e compartment, keep th e hoo d closed
and contact th e fir e department.
General notes
Dependin g on your driving style, th e vehicl e
consumes up to 0. 9 US qt (0. 8 l) of oil per
60 0 mile s( 1000 km). The oil consumption may
be higher than this when the vehicle is new or if
you frequently drive at high engine speeds.
Depending on the engine, the oil dipstick may be
in a different location.Engine compartment 307
Maintenance and care Z

Where possible, let the engine cool down and
touch only the components described in the
following.
G WARNING
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: R
switch off the ignition R
never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area R
remove jewelry and watches R
keep items of clothing and hair, for exam-
ple, away from moving parts
G WARNING
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 gloves and eye protection. Slowly
open the cap to relieve pressure.
G WARNING
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. Checking coolant level
Checking the coolant level (example) X
Park the vehicle on a level surface.
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down. X
Turn the SmartKey to position H in the igni-
tion lock ( Y
page 132).
or X
Press the Start/Stop button twice on vehicles
with KEYLESS-GO or the KEYLESS-GO start
function ( Y
page 133). X
Check the coolant temperature display in the
instrument cluster ( Y
page 36).
The coolant temperature must be below
158 ‡ (70 †). X
Turn the SmartKey to position Z in the igni-
tion lock ( Y
page 132).
or X
Press the Start/Stop button once on vehicles
with KEYLESS-GO or the KEYLESS-GO start
function ( Y
page 133). X
Slowly turn cap C half a turn counter-clock-
wise and allow excess pressure to escape. X
Turn cap C further counter-clockwise and
remove it.
If the coolant is at the level of marker bar

Otherwise, the engine cooling system is not
sufficiently protected from corrosion and
overheating.
i Have the coolant regularly replaced at a
qualified specialist workshop and the replace-
ment confirmed in the Maintenance Booklet.
Comply with the important safety notes for ser-
vice products when handling coolant
( Y
page 364).
The coolant is a mixture of water and anti-
freeze/corrosion inhibitor. It performs the fol-
lowing tasks: R
Anti-corrosion protection R
Antifreeze protection R
Raising the boiling point
If the coolant has antifreeze protection down to
-35 ‡ (-37 †), the boiling point of the coolant
during operation is approximately 266 ‡
(130 †).
The antifreeze concentrate/corrosion inhibitor
concentration in the engine cooling system
should: R
be at least 50%. This will protect the engine
cooling system against freezing down to
approximately -35 ‡ (-37 †). R
not exceed 55% (antifreeze protection down
to -49 ‡[ -45 †]) . Otherwise , hea t will no t be
dissipated as effectively.
Mercedes-Ben z recommends an antifreeze/
corrosion inhibitor concentrat e in accordance
wit h MB Specification s fo r Servic e Products
310.1.
i Whe n th e vehicle is first delivered, it is filled
wit h a coolan t mixture that ensures adequat e
antifreez e an d anti-corrosio n protection .
i The coolan t is checke d wit h ever y mainte-
nanc e interval at a qualifie d specialis t work-
shop.
Filling capacities
Model Capacity
GLC 300 d 4MATIC
10.6 US qt (10.0 l)
Mercedes-AMG
GLC 43 4MATIC 12.2 US qt (11.5 l)
Al l ot her models
9.5 US qt (9.0 l) Windshield washer system
Important safety notes
G WARNING
Windshield washer concentrate could ignite if
it comes into contact with hot engine compo-
nents or the exhaust system. There is a risk of
fire and injury.
Make sure that no windshield washer con-
centrate is spilled next to the filler neck.
! Only use washer fluid that is suitable for
plastic lamp lenses, e.g. MB SummerFit or MB
WinterFit. Unsuitable washer fluid could dam-
age the plastic lenses of the headlamps.
! Only MB SummerFit and MB WinterFit
washer fluid should be mixed together. The
spray nozzles may otherwise become
blocked.
Do not use distilled or de-ionized water. Other-
wise, the level sensor may give a false reading.
When handling washer fluid, observe the impor-
tant safety notes on service products
( Y
page 364).
At temperatures above freezing: X
Fill the washer fluid reservoir with a mixture of
water and windshield washer fluid, e.g. MB
SummerFit.
Add 1 part MB SummerFit to 100 parts water.
At temperatures below freezing: X
Fill the washer fluid reservoir with a mixture of
water and washer fluid, e.g. MB WinterFit.
For the correct mixing ratio refer to the infor-
mation on the antifreeze reservoir.
i Add windshield washer fluid, e.g. MB Sum-
merFit or MB WinterFit, to the washer fluid all
year round.
Climate control system refrigerant
Important safety notes
The climate control system of your vehicle is fil-
led with refrigerant R ‑ 134a.
The instruction label regarding the refrigerant
type used can be found on the radiator cross
member.Service products and filling capacities 369
Technical data Z