flat tire MERCEDES-BENZ GLC COUPE 2017 X253 Owner's Manual

Maintenance and care......................300
Engine compartment ........................... 300
ASSYST PLUS ...................................... 304
Care ..................................................... 305
Breakdown assistance .....................313
Where will I find...? .............................. 313
Flat tire ................................................ 315
Battery (vehicle) .................................. 319
Jump-starting ....................................... 322
Towing and tow-starting ...................... 324
Fuses ...................................................3 27
Wheels and tires............................... 330
Important safety notes ........................ 330
Operation ............................................ 330
Winter operation .................................. 332
Tire pressure ....................................... 333
Loading the vehicle .............................. 340
All about wheels and tires ................... 343
Changing a wheel ................................ 350
Wheel/tire combination ......................3 54
Technical data................................... 356
Information regarding technical data ... 356
Vehicle electronics .............................. 356
Identification plates .............................3 57
Service products and filling capaci-
ties ...................................................... 358
Vehicle data ......................................... 364
Trailer tow hitch ................................... 365
Contents3

Bag hook............................................ 279
Ball coupling
Installing ........................................ 199
Removing ....................................... 201
BAS (Brake Assist System) ................. 64
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Function/notes ................................ 65
Important safety notes .................... 65
Battery (SmartKey)
Checking .......................................... 79
Important safety notes .................... 79
Replacing ......................................... 79
Battery (vehicle)
Charging ........................................ 321
Display message ............................ 236
Important safety notes .................. 319
Jump starting ................................. 322
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 216
Display message ............................ 241
Notes/function .............................. 188
see Active Blind Spot Assist
Blootooth
®
Connecting a different mobile
phone ............................................ 271
BlueTEC
see DEF
Bluetooth
®
Searching for a mobile phone ........ 270
see also Digital Operator's Man-
ual .................................................. 263
Telephony ...................................... 270
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 228
Notes ............................................. 362
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 228
Brakes
ABS .................................................. 64 Adaptive Brake Assist ...................... 68
BAS .................................................. 64
BAS PLUS with Cross-Traffic
Assist ............................................... 65
Brake fluid (notes) ......................... 362
Display message ............................ 223
EBD .................................................. 72
Hill start assist ............................... 131
HOLD function ............................... 166
Important safety notes .................. 154
Maintenance .................................. 155
Parking brake ................................ 150
Riding tips ...................................... 154
Warning lamp ................................. 253
Breakdown
Where will I find...? ........................ 313
see Flat tire
see Towing away
Brightness contro l (
instrument
cluster lighting) ................................... 34
Buttons on the steering wheel ......... 204
C
California
Important notice for retail cus-
tomers and lessees .......................... 27
Calling up a malfunction
see Display messages
Calling up the climate control bar
Multimedia system ........................ 267
Calling up the climate control
menu
Multimedia system ........................ 268
Camera
see 360° camera
see Rear view camera
Car
see Vehicle
Care
360° camera ................................. 310
Car wash ........................................ 305
Carpets .......................................... 312
Display ........................................... 310
Exhaust pipe .................................. 310
Exterior lights ................................ 309
General notes ................................ 305
Interior ........................................... 310
6Index

Engine number ............................... 358
Irregular running ............................ 133
Jump-starting ................................. 322
Starting (important safety notes) ... 128
Starting problems .......................... 133
Starting the engine with the
SmartKey ....................................... 129
Starting via smartphone ................ 129
Starting with the Start/Stop but-
ton ................................................. 129
Switching off .................................. 150
Tow-starting (vehicle) ..................... 327
Engine electronics
Problem (malfunction) ................... 133
Engine oil
Adding ........................................... 302
Additives ........................................ 362
Checking the oil level ..................... 301
Checking the oil level using the
dipstick .......................................... 302
Display message ............................ 237
Filling capacity ............................... 362
General notes ................................ 361
Notes about oil grades ................... 361
Notes on oil level/consumption .... 301
Temperature (on-board computer,
Mercedes-AMG vehicles) ............... 219
Entering an address
see also Digital Operator's Man-
ual .................................................. 263
ESP
®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 219
Characteristics ................................. 69
Crosswind Assist ............................. 72
Deactivating/activating (button
in Mercedes-AMG vehicles) ............. 70
Deactivating/activating (notes,
except Mercedes-AMG vehicles) ...... 69
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 215
Display message ............................ 223
Function/notes ................................ 69
General notes .................................. 69
Important safety information ........... 69
Trailer stabilization ........................... 72
Warning lamp ................................. 254 ETS/4ETS (Electronic Traction Sys-
tem)
...................................................... 69
Exhaust
see Exhaust pipe
Exhaust check ................................... 153
Exhaus t pi
pe
Cleaning ......................................... 310
Exterior lighting
Cleaning ......................................... 309
Setting options .............................. 108
see Lights
Exterior mirrors
Adjusting ....................................... 103
Dipping (automatic) ....................... 104
Folding in/out (automatically) ....... 104
Folding in/out (electrically) ........... 104
Out of position (troubleshooting) ... 104
Setting ........................................... 104
Storing settings (memory func-
tion) ............................................... 106
Storing the parking position .......... 105
Eyeglasses compartment ................. 274
F
Favorites
Overview ........................................ 266
Features ............................................. 284
Filler cap
see Refueling
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 350
MOExtended tires .......................... 315
Preparing the vehicle ..................... 315
TIREFIT kit ...................................... 316
Floormats ........................................... 299
Frequencies
Mobile phone ................................. 356
Two-way radio ................................ 356
Front wheel arch
Removing/installing the cover ....... 114
Front wheel arch cover
Installing/removing ....................... 114
Fuel
Additives ........................................ 360
Consumption statistics .................. 208
Diesel ............................................ 360
Index11

Maximum load on a tire (defini-
tion) ............................................... 349
Maximum loaded vehicle weight
(definition) .....................................349
Maximum permissible tire pres-
sure (definition) .............................3 49
Maximum tire load ......................... 347
Maximum tire load (definition) ....... 349
MOExtended tires .......................... 332
Optional equipment weight (defi-
nition) ............................................ 350
PSI (pounds per square inch) (def-
inition) ...........................................3 49
Replacing ....................................... 350
Service life ..................................... 331
Sidewall (definition) ....................... 349
Snow chains .................................. 332
Speed rating (definition) ................ 349
Storing ...........................................3 51
Structure and characteristics
(definition) ..................................... 348
Summer tires in winter .................. 332
Temperature .................................. 344
TIN (Tire Identification Number)
(definition) ..................................... 350
Tire bead (definition) ......................3 49
Tire pressure (definition) ................ 349
Tire pressures (recommended) ...... 348
Tire size (data) ............................... 354
Tire size designation, load-bearing
capacity, speed rating .................... 345
Tire tread ....................................... 331
Tire tread (definition) ..................... 349
Total load limit (definition) ............. 350
Traction ......................................... 344
Traction (definition) ....................... 350
Tread wear ..................................... 344
Uniform Tire Quality Grading
Standards ...................................... 343
Uniform Tire Quality Grading
Standards (definition) .................... 348
Wear indicator (definition) ............. 350
Wheel and tire combination ........... 354
Wheel rim (defi nition) .................... 348
se

e Flat tire
Top Tether ............................................ 60
Topping up
DEF ................................................ 146 Touchpad
Changing the station/music
track .............................................. 266
Character suggestions ................... 265
Deleting characters ....................... 265
Entering a space ............................ 265
Entering characters ....................... 265
Gesture control .............................. 265
Handwriting recognition ................ 265
Operating the touchpad ................. 265
Overview ........................................ 265
Quick access for Audio .................. 266
Switching ....................................... 265
Switching input line ....................... 265
Tow-starting
Emergency engine starting ............ 327
Important safety notes .................. 324
Towing a trailer
Axle load, permissible .................... 365
Cleaning the trailer tow hitch ......... 310
Coupling up a trailer ...................... 199
Decoupling a trailer ....................... 201
Driving tips .................................... 198
ESP
®(Electronic Stability Pro-
gram) ............................................... 72
Important safety notes .................. 197
Installing the ball coupling ............. 199
Lights display message .................. 234
Power supply ................................. 201
Pulling away with a trailer .............. 130
Removing the ball coupling ............ 201
Trailer loads ................................... 365
Towing away
Important safety guidelines ........... 324
Installing the towing eye ................ 325
Notes for 4MATIC vehicles ............ 327
Removing the towing eye ............... 326
Transporting the vehicle ................ 326
With both axles on the ground ....... 326
Towing eye ......................................... 314
Traffic reports
see also Digital Operator's Man-
ual .................................................. 263
Traffic Sign Assist
Display message ............................ 242
Function/notes ............................. 187
Important safety notes .................. 188
Instrument cluster display ............. 188
22Index

Occupant Classification System
(OCS)
Introduction
The Occupant Classification System (OCS) cat-
egorizes the person in the front-passenger seat.
Depending on that result, the front-passenger
front air bag is either enabled or deactivated.
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
Requirements
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rin an almost upright position with their back
against the seat backrest
Rwith their feet resting on the floor, if possible
If the front passenger does not observe these
conditions, OCS may produce a false classifica-
tion, e.g. because the front passenger:
Rtransfers their weight by supporting them-
selves on a vehicle armrest
Rsits in such a way that their weight is raised
from the seat cushion
If it is absolutely necessary to install a child
restraint system on the front-passenger seat, be
sure to observe the correct positioning of the
child restraint system. Never place objects
under or behind the child restraint system, e.g. a
cushion. Fully retract the seat cushion length.
The entire base of the child restraint system
must always rest on the seat cushion of the
front-passenger seat. The backrest of the
forward-facing child restraint system must lie as
flat as possible against the backrest of the front-
passenger seat.
The child restraint system must not touch the
roof or be subjected to a load by the head
restraint. Adjust the angle of the seat backrest
and the head restraint position accordingly.
Only then can OCS be guaranteed to function
correctly. Always observe the child restraint sys-
tem manufacturer's installation and operating
instructions.
Occupant Classification System opera-
tion (OCS)
:PASSENGER AIR BAG ON indicator lamp
;PASSENGER AIR BAG OFF indicator lamp
The indicator lamps inform you whether the
front-passenger front air bag is deactivated or
enabled.
XPress the Start/Stop button once or twice, or
turn the SmartKey to position 1or 2in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF and PASSENGER AIR BAG ON indicator lamps must light up simul-
taneously for approximately six seconds.
The indicator lamps display the status of the
front-passenger front air bag.
RPASSENGER AIR BAG ON lights up for 60 sec-
onds, subsequently both indicator lamps are
off (PASSENGER AIR BAG ON and OFF): the
front-passenger front air bag is able to deploy
in the event of an accident.
RPASSENGER AIR BAG OFF lights up: the front-
passenger front air bag is deactivated. It will
then not be deployed in the event of an acci-
dent.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator lamp shows the status of the front-passenger
front air bag. The PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
If the status of the front-passenger front air bag
changes while the vehicle is in motion, an air bag
display message appears in the instrument clus-
ter (
Ypage 232). When the front-passenger
seat is occupied, always pay attention to the
PASSENGER AIR BAG OFF indicator lamp. Be
aware of the status of the front-passenger front air bag both before and during the journey.
50Occupant safety
Safety

ProblemPossible causes/consequences andMSolutions
The PASSENGER AIR
BAG OFF indicator lamp
lights up and remains lit,
even though the front-
passenger seat is occu-
pied by an adult or a per-
son of a stature corre-
sponding to that of an
adult.The classification of the person on the front-passenger seat is incor-
rect.
XMake sure the conditions for a correct classification of the person
on the front-passenger seat are met (Ypage 50).
XIf the PASSENGER AIR BAG OFF indicator lamp remains lit, the front-
passenger seat may not be used.
XHave OCS checked as soon as possible at an authorized Mercedes- Benz Center.
The PASSENGER AIR
BAG OFF indicator lamp
does not light up and/or
does not stay on.
The front-passenger seat
is:
Runoccupied
Roccupied with the
weight of a child up to
twelve months old in a
child restraint system
OCS is malfunctioning.
XMake sure there is nothing between the seat cushion and the child
seat.
XMake sure that the entire base of the child restraint system rests on
the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as flat as possible
against the backrest of the front-passenger seat. If necessary,
adjust the position of the front-passenger seat.
XMake sure that the seat cushion length is fully retracted.
XWhen installing the child restraint system, make sure that the seat
belt is tight. Do not pull the seat belt tight using the front-passenger seat adjustment. This could result in the seat belt and the child
restraint system being pulled too tightly.
XCheck for correct installation of the child restraint system.
Make sure that the head restraint does not apply a load to the child
restraint system. If necessary, adjust the head restraint accord-
ingly.
XMake sure that no objects are applying additional weight onto the
seat.
XIf the PASSENGER AIR BAG OFF indicator lamp remains off and/or
the PASSENGER AIR BAG ON indicator lamp lights up, do not install a child restraint system on the front-passenger seat. It is recom-
mended that you install the child restraint system on a suitable rear
seat.
XHave OCS checked as soon as possible at an authorized Mercedes-Benz Center.
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes
GWARNING
The air bag parts are hot after an air bag has
been deployed. There is a risk of injury.
Do not touch the air bag parts. Have a
deployed air bag replaced at a qualified spe-
cialist workshop as soon as possible.
GWARNING
A deployed air bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to a qualified special-
ist workshop in order to have a deployed air
bag replaced.
It is important for your safety and that of your
passenger to have deployed air bags replaced
54Occupant safety
Safety

Emergency braking
The vehicle can also be braked during an emer-gency by using the electric parking brake.
XWhile driving, push handle :of the electric
parking brake (Ypage 151).
The vehicle is braked as long as you keep
handle :of the electric parking brake
depressed. The longer electric parking brake
handle :is depressed, the greater the brak-
ing force.
During braking:
Ra warning tone sounds
Rthe Please Release Parking Brakemes-
sage appears
Rthe red F(USA only) or !(Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
result of lack of use.
XVisit a qualified specialist workshop and seek
advice.
iYou can obtain information about trickle
chargers from a qualified specialist work-
shop.
Driving tips
General driving tips
Important safety notes
GWARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, for example, the power steering and the brake
boosting effect. You will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
GWARNING
If you operate mobile communication equip-
ment while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate this equipment when the vehicle
is stationary.
Observe the legal requirements for the country
in which you are driving. Some jurisdictions pro-
hibit the driver from using a mobile phone while
driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers a
distance of 44 ft (approximately 14 m)per sec-
ond.
Drive sensibly – save fuel
Observe the following tips to save fuel:
XThe tires should always be inflated to the rec-
ommended tire pressure.
XRemove unnecessary loads.
XRemove roof racks when they are not needed.
XWarm up the engine at low engine speeds.
XAvoid frequent acceleration or braking.
XHave all maintenance work carried out as
indicated by the service intervals in the Main-
tenance Booklet or by the service interval dis-
play.
Fuel consumption also increases when driving in cold weather, in stop-start traffic and in hilly ter-
rain.
Drinking and driving
GWARNING
Drinking and driving and/or taking drugs and driving are very dangerous combinations.
Even a small amount of alcohol or drugs can
152Driving tips
Driving and parking

Tires
Display messagesPossible causes/consequences andMSolutions
CheckTirePressureSoonCanada only:
The tire pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or installed
new wheels and tires
Rthe tire pressure in one or more tires has dropped significantly
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 149).
XCheck the tires and, if necessary, follow the instructions for a flat
tire (Ypage 315).
XCheck the tire pressures and, if necessary, correct the tire pressure.
XRestart the tire pressure loss warning system when the tire pres-
sure is correct (Ypage 337).
CheckTirePressureThen Restart RunFlat Indicator
Canada only:
The tire pressure loss warning system generated a display message
and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 337).
Run Flat IndicatorInoperativeCanada only:
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
PleaseCorrectTirePressureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 339).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 339).
Displa y messages245
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Check TiresThe tire pressurein on eor mor etires has dropped significantly. The
whee lposition is displayed in th emultifunction display.
A warning tone also sounds.
GWARNIN G
Tir epressures that are to olow pos eth efollowin ghazards :
Rthey may burst, especially as th eload and vehicl espeed increase.
Rthey may wear excessivel yand/o runevenly, whic hmay greatl y
impair tire traction .
Rthedrivin gcharacteristics ,as well as steering and braking ,may be
greatl yimpaired.
There is aris kof an accident.
XStop th evehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sas you do so.
XSecur eth evehicl eagainst rollin gaway (Ypage 149).
XCheckth etires and ,if necessary, follow th einstruction sfor aflat
tire (Ypage 315).
XChec kth etire pressur e (Ypage 339).
XIf necessary, correc tth etire pressure.
Warnin gTir eMal ‐functionThe tire pressur ein on eor mor etires has dropped suddenly. The whee l
position is shown in th emultifunction display.
GWARNIN G
Drivin gwit h a flat tire poses aris kof th efollowin ghazards :
Raflat tire affects th eabilit yto steer or brak eth evehicl e
Ryou could lose control of th evehicl e
Rcontinued drivin gwit h a flat tire will caus eexcessive heat build-up
and possibl y afire
There is aris kof an accident.
XStop th evehicl ewithout making any sudden steering or braking
maneuvers .Pay attention to th etraffic condition sas you do so.
XSecur eth evehicl eagainst rollin gaway (Ypage 149).
XCheckth etires and ,if necessary, follow th einstruction sfor aflat
tire (Ypage 315).
TirePress.Monito rCurrently Unavaila‐ble
Becausethere is interferenc efrom astron gsource of radi owaves, no
signals from th etire pressur esensor sare detected. The tire pressur e
monitor is temporarily malfunctioning .
XDrive on.
The tire pressur emonitor restarts automatically as soo nas th e
problem has been resolved.
TirePress .Sen ‐sor(s) Missin gThere is no signal from th etire pressur esensor of on eor several tires .
The pressur eof th eaffecte dtire is no tdisplayed in th emultifunction
display.
XHav eth efault ytire pressur esensor replace dat aqualified special -
ist workshop .
246Display messages
On-board computer and displays

Tires
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
hNThe yellow tire pressure monitor warning lamp (pressure loss/malfunction) is lit.
The tire pressure monitor has detected a loss of pressure in at least one of the tires.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly impair tire trac-
tion.
Rthe driving characteristics, as well as steering and braking, may be greatly
impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking maneuvers. Pay
attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 149).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 315).
XCheck the tire pressure (Ypage 339).
XIf necessary, correct the tire pressure.
hN The yellow tire pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tire pressure monitor is faulty.
GWARNING
The system is possibly unable to recognize or register low tire pressure.
There is a risk of an accident.
XObserve the additional display messages in the multifunction display.
XVisit a qualified specialist workshop immediately.
Warning and indicator lamps in the instrument cluster261
On-board computer and displays
Z