flat tire MERCEDES-BENZ G-CLASS 2018 Owner's Manual

Maintenance and care......................230
Engine compartment ........................... 230
Maintenance ........................................ 235
Care ..................................................... 236
Breakdown assistance .....................243
Where will I find...? .............................. 243
Flat tire ................................................ 246
Battery (vehicle) .................................. 246
Jump starting ....................................... 249
Towing and tow-starting ...................... 251
Fuses ...................................................2 54
Wheels and tires............................... 257
Important safety notes ........................ 257
Operation ............................................ 257
Winter operation .................................. 258
Tire pressure ....................................... 260
Loading the vehicle .............................. 266
All about wheels and tires ................... 269
Changing a wheel ................................ 275
Wheel and tire combinations ...............2 79
Spare wheel ......................................... 279
Technical data ................................... 281
Information regarding technical data ... 281
Vehicle electronics .............................. 281
Identification plates .............................2 82
Service products and filling capaci-
ties ...................................................... 283
Vehicle data ......................................... 288
Vehicle data for off-road driving .......... 290
Trailer tow hitch ................................... 291
Contents3

Neutral (ECO start/stop func-
tion) ............................................... 113
Overview ........................................ 111
Problem (malfunction) ................... 119
Program selector button ................ 115
Pulling away ................................... 106
Selector lever ................................ 112
Shift ranges ................................... 116
Steering wheel paddle shifters ...... 116
Trailer towing ................................. 115
Transmission position display ........ 112
Automatic transmission emer-
gency mode ....................................... 119
Axle load, permissible (trailer tow-
ing) ...................................................... 291
B
BabySmart™
Air bag deactivation system ............. 53
Back button ....................................... 204
Backup lamp
Replacing bulbs ............................... 92
Ball coupling
Installing ........................................ 156
BAS (Brake Assist System) ................. 59
Battery (SmartKey)
Checking .......................................... 65
Important safety notes .................... 64
Replacing ......................................... 65
Battery (vehicle)
Charging ........................................ 248
Display message ............................ 182
Important safety notes .................. 246
Jump starting ................................. 249
Overview ........................................ 246
Belt warning ......................................... 43
Blind Spot Assist
Activating/deactivating ................. 167
Activating/deactivating (on-
board computer) ............................ 167
Display message ............................ 185
Notes/function .............................. 140
Bluetooth
®
Searching for a mobile phone ........ 207
see also Digital Operator's Man-
ual .................................................. 203
Telephony ...................................... 206 Brake fluid
Display message ............................ 177
Notes ............................................. 286
Brake fluid level ................................ 235
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamp
Replacing bulbs ............................... 92
Brake lamps
Display message ............................ 180
Brakes
ABS .................................................. 58
BAS .................................................. 59
Brake fluid (notes) ......................... 286
Display message ............................ 175
EBD .................................................. 61
High-performance brake system .... 127
Hill start assist ............................... 107
HOLD function ............................... 142
Important safety notes .................. 125
Maintenance .................................. 126
Parking brake ................................ 123
Riding tips ...................................... 125
Warning lamp ................................. 193
Breakdown
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 32
Brush guard ....................................... 226
Bulbs
Backup lamp .................................... 90
Brake lamp ...................................... 90
Rear fog lamp .................................. 90
Standing lamps (rear) ...................... 90
T

ail lamp .......................................... 90
Turn signal lamp (front) .................... 90
Turn signal lamp (rear) ..................... 90
see Replacing bulbs
C
California
Important notice for retail cus-
tomers and lessees .......................... 24
Calling up a malfunction
see Display messages
Index5

General notes .................................. 59
Important safety information ...........59
Trailer stabilization ........................... 61
Warning lamp ................................. 196
Exhaust
see Exhaust pipe
Exhaust check ................................... 125
Exhaust pipe
Cleaning ......................................... 240
Exterior lighting
Cleaning ......................................... 239
see Lights
Exterior mirrors
Adjusting ......................................... 82
Dipping (automatic) .........................8 3
Folding in when locking (on-board
computer) ...................................... 170
Folding in/out (automatically) ......... 83
Folding in/out (electrically) ............. 82
Out of position (troubleshooting) ..... 83
Setting ............................................. 82
Storing settings (memory func-
tion) ................................................. 84
Storing the parking position ............. 83
F
Favorites
Overview ........................................ 205
Filler cap
see Refueling
First-aid kit ......................................... 244
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 275
Preparing the vehicle ..................... 246
Folding the seat backrest (rear)
forwards/back .................................. 212
Frequencies
Mobile phone ................................. 281
Two-way radio ................................ 281
Fuel
Additives ........................................ 285
Consumption statistics .................. 163
Displaying the range ...................... 163
Driving tips .................................... 124
Fuel gauge ....................................... 32
Grade (gasoline) ............................ 284 Important safety notes .................. 284
Premium-grade unleaded gaso-
line ................................................. 284
Problem (malfunction) ................... 122
Refueling ........................................ 120
Tank content/reserve fuel ............. 284
Fuel filler flap
Closing ........................................... 121
Emergency release ........................ 121
Opening ......................................... 120
Fuel level
Calling up the range (on-board
computer) ...................................... 163
Fuel tank
Capacity ........................................ 284
Problem (malfunction) ................... 122
Fuse allocation chart ........................ 255
Fuse box
cargo compartment ....................... 256
Dashboard ..................................... 255
Front-passenger footwell ............... 255
Transmission tunnel ....................... 255
Fuses
Allocation chart ............................. 255
Before changing ............................. 254
Dashboard fuse box ....................... 255
Fuse allocation chart ..................... 255
Fuse box in the cargo compart-
ment .............................................. 256
Fuse box in the front-passenger
footwell .......................................... 255
Fuse box in the transmission tun-
nel ................................................. 255
Important safety notes .................. 254
G
Garage door openerClearing the memory ..................... 229
General notes ................................ 226
Important safety notes .................. 227
Opening/closing the garage doo r..2 29
Problems when programming ........2 29
Programming the remote control ... 227
Synchronizing the rolling code ....... 228
Gasoline ............................................. 284
Gear indicator (on-board com-
puter) ..................................................1 71
10Index

Maximum tire load .........................272
Maximum tire load (definition) ....... 274
Optional equipment weight (defi-
nition) ............................................ 275
PSI (pounds per square inch) (def-
inition) ...........................................2 75
Replacing ....................................... 275
Service life ..................................... 258
Sidewall (definition) ....................... 275
Snow chains .................................. 259
Speed rating (definition) ................ 274
Storing ...........................................2 76
Structure and characteristics
(definition) ..................................... 273
Summer tires in winter .................. 259
Temperature .................................. 269
TIN (Tire Identification Number)
(definition) ..................................... 275
Tire bead (definition) ......................2 75
Tire pressure (definition) ................ 275
Tire pressures (recommended) ...... 274
Tire size (data) ............................... 279
Tire size designation, load-bearing
capacity, speed rating .................... 270
Tire tread ....................................... 258
Tire tread (definition) ..................... 275
Total load limit (definition) ............. 275
Traction ......................................... 269
Traction (definition) ....................... 275
Tread wear ..................................... 269
TWR (permissible trailer drawbar
noseweight) (definition) ................. 275
Uniform Tire Quality Grading
Standards ...................................... 269
Uniform Tire Quality Grading
Standards (definition) .................... 273
Wear indicator (definition) ............. 275
Wheel and tire combination ........... 279
Wheel rim (definition) .................... 274
see Flat tire
Top Tether ............................................ 52
Tow-starting
Emergency engine starting ............ 254
Important safety notes .................. 251
Towing a trailer
Axle load, permi
ssible .................... 291
Cleaning the trailer tow hitch ......... 240
Coupling up a trailer ...................... 157 Decoupling a trailer ....................... 158
Driving tips .................................... 154
ESP
®(Electronic Stability Pro-
gram) ............................................... 61
Important safety notes .................. 153
Installing the ball coupling ............. 156
Lights display message .................. 180
Pulling away with a trailer .............. 107
Shift range ..................................... 115
Trailer loads ................................... 291
Trailer tow hitch ............................. 291
Towing away
Important safety guidelines ........... 251
In the event of malfunctions .......... 253
With both axles on the ground ....... 252
Towing eye
Front .............................................. 252
Rear ............................................... 252
Traffic reports
see also Digital Operator's Man-
ual .................................................. 203
Trailer
7-pin connector ............................. 159
Power supply ................................. 159
Trailer coupling
see Towing a trailer
Trailer loads
Technical data ............................... 291
Trailer loads and drawbar nose-
weights ............................................... 159
Trailer tow hitch
Ball position ................................... 291
Trailer towing
PARKTRONIC ................................. 145
Permissible trailer loads and
drawbar noseweights ..................... 159
Transfer case
General notes ................................ 149
Shift range ..................................... 149
Shifting .......................................... 149
Shifting (general notes) .................. 149
Shifting (important safety notes) ... 149
Shifting to neutral .......................... 150
Switching off the off-road gear
ratio ............................................... 150
Switching on the off-road gear
ratio ............................................... 149
Index19

PASSENGER AIR BAG OFF indicator lamp:
shows you whether the front-passenger front air
bag is deactivated.
XTurn the SmartKey to position 1or2 in the
ignition lock.
The system carries out self-diagnostics.
The PASSENGER AIR BAG OFF indicator lamp
must light up for approximately six seconds.
If, after the system self-test, the
PASSENGER AIR BAG OFF indicator lamp:
Ris lit: the front-passenger front air bag is
deactivated. It will then not be deployed in the event of an accident.
Ris not lit , the sensor system did not detect a
child restraint system with transponder for
the BabySmart™ air bag deactivation system.
If, in the event of an accident, all deployment
criteria are met, the front-passenger front air
bag is deployed.
Child restraint system on the front-
passenger seat
General notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
the child restraint system on a rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
always observe the information on the "Baby-
Smart™ air bag deactivation system"
(
Ypage 53). You can thus avoid the risks that could arise as
a result of:
Ra child restraint system that is not detected
by the BabySmart™ air bag deactivation sys-
tem sensor system
Rthe unintentional deactivation of the front-
passenger front air bag
Rthe unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board
Rearward-facing child restraint system
If it is absolutely necessary to install a rearward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front air bag is deactivated.
Only if the PASSENGER AIR BAG OFF indicator
lamp is permanently lit (
Ypage 39) is the front-
passenger front air bag deactivated.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system
If it is absolutely necessary to install a forward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger seat as far back as possible. The
entire base of the child restraint system must
always rest on the seat cushion of the front-
passenger seat. The backrest of the 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.
Always make sure that the shoulder belt strap is
correctly routed from the vehicle belt sash guide
to the shoulder belt guide on the child restraint system. The shoulder belt strap must be routed
forward and down from the vehicle belt sash
guide. If necessary, adjust the belt sash guide
and the front-passenger seat accordingly.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Children in the vehicle55
Safety
Z

XTo apply:pull parking brake lever ;up
firmly.
When the ignition is switched on, the F
(USA only) or J(Canada only) indicator
lamp in the instrument cluster lights up.
XTo release: pull parking brake lever ;
slightly.
XPress release button :and guide parking
brake ;down to the stop.
The F (USA only) or J(Canada only)
indicator lamp in the instrument cluster goes
out.
The vehicle can also be braked during an emer-
gency by using the parking brake.
XTo brake in an emergency: press and hold
release button :and carefully pull parking
brake lever ;upwards.
If you drive on wet roads or dirt-covered surfa-
ces, road salt and/or dirt could get into the
parking brake.
In order to prevent corrosion and a reduction in
the braking power of the parking brake, observe
the following:
Rpull the parking brake up with release but-
ton :depressed from time to time before
beginning a journey
Rdrive for approximately 110 yds (100 m) at a
maximum speed of 12 mph (20 km/h)
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 when driving, you may be distracted
from the traffic situation. 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 carriers when they are not nee-
ded.
XWarm up the engine at low engine speeds.
124Driving tips
Driving and parking

Tires
Display messagesPossible causes/consequences andMSolutions
Tire pressure willbe displayed afterdriving a fewminutes
The tire pressure monitor is measuring the tire pressure.
XDrive on.
The tire pressures appear in the multifunction display after you have
been driving for a few minutes.
TirePress.MonitorInoperativeThe tire pressure monitor is faulty.
XVisit a qualified specialist workshop.
Tire Pressure Moni‐tor Inoperative NoWheel Sensors
The wheels mounted do not have a suitable tire pressure sensor. The
tire pressure monitor is deactivated.
XMount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving for
a few minutes.
Check TiresThe tire pressure in one or more tires has dropped significantly. The
wheel position is shown in the multifunction display.
A warning tone also sounds.
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 122).
XIf there is a flat tire, inspect the tires (Ypage 246).
XCheck the tire pressure (Ypage 263).
XIf necessary, correct the tire pressure.
Displa y messages187
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
WarningTir eMal ‐functionThe tire pressur ein on eor mor etires has dropped suddenly. The whee l
position is shown in th emultifunction display.
A warning tone also sounds.
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 122).
XIf there is aflat tire, inspec tth etires (Ypage 246).
PleaseCorrec tTirePressureThe tire pressur eis to olow in at least on eof th etires ,or th etire
pressur edifference between th ewheels is to ogreat.
XChec kth etire pressures at th enext opportunity (Ypage 263).
XIf necessary, correc tth etire pressure.
XRestart th etire pressur emonitor (Ypage 265).
TirePress .Sen ‐sor(s) Missin gThere is no signal from th etire pressur esensor of on eor several
wheels. The pressur eof th eaffecte dtire does no tappear in th emul-
tifunction display.
XHav eth efault ytire pressur esensor replace dat aqualified special -
ist workshop .
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.
188Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
h
TirePressure Warn‐ing ,Tir eMalfunc‐tio n
The tire pressur ein on eor mor etires has dropped suddenly. The whee l
position is shown on th emultifunction display.
A warning tone also sounds.
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 122).
XIf there is aflat tire, inspec tth etires (Ypage 246).
h
Check Tir ePressure
The tire pressur ein on eor mor etires has dropped significantly. The
whee lposition is shown on 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 yimpaire d
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 122).
XIf there is aflat tire, inspec tth etires (Ypage 246).
XChec kth etire pressur e (Ypage 263).
XIf necessary, correc tth etire pressure.
h
PleaseCorrec tTirePressure
The tire pressur eis to olow in at least on eof th etires ,or th etire
pressur edifference between th ewheels is to ogreat.
XChec kth etire pressures at th enext opportunity (Ypage 263).
XIf necessary, correc tth etire pressure.
Display messages18 9
On-board computer and displays
Z

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 122).
XObserve the additional display messages in the multifunction display.
XCheck the tires and, if necessary, follow the instructions for a flat tire
(Ypage 246).
XCheck the tire pressure (Ypage 263).
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.
202Warning and indicator lamps in the instrument cluster
On-board computer and displays