2018 MERCEDES-BENZ G-CLASS maintenance

Welcome to the world of Mercedes-Benz
We urge you to read this Operator's Manual
carefully and familiarize yourself with the vehi-
cle before driving. For your own safety and a
longer vehicle life, follow the instructions and
warning notices in this Operator's Manual.
Ignoring them could result in damage to the
vehicle or personal injury to you or others.
Vehicle damage caused by failure to follow
instructions is not covered by the Mercedes-
Benz Limited Warranty.
The equipment or product designation of your
vehicle may vary depending on:
RModel
ROrder
RCountry specification
RAvailability
Mercedes-Benz therefore reserves the right to
introduce changes in the following areas:
RDesign
REquipment
RTechnical features
The equipment in your vehicle may therefore
differ from that shown in the descriptions and
illustrations.
The following are integral components of the
vehicle:
RDigital Operator's Manual
RPrinted Operator's Manual
RMaintenance Booklet
REquipment-dependent supplements
Keep these documents in the vehicle at all
times. If you sell the vehicle, always pass all
documents on to the new owner.
Your Operator's Manual:
Digital form inside the vehicle
The Digital Operator's Manual provides
comprehensive and specifically adapted
information on your vehicle's equipment
and multimedia system. It contains infor-
mative animations, individual language
settings and an intuitive search function.
Booklet inside the vehicle
In addition to this manual and the afore-
mentioned digital media, you also have the
option to obtain a comprehensive printed
version of the Supplement for your multi-
media system from your authorized
Mercedes-Benz Center.
Digital form via the Internet
The Operator's Manual on the Internet pro-
vides easy access to all information
regarding your vehicle and multimedia sys-
tem. It also provides helpful animations,
interesting background information and a
wide array of search options.
Digital form as an app
Using the Mercedes-Benz Guides app, you
can view all the information on your vehicle
and multimedia system via mobile Internet
or download it independently of network
access. Available for smartphones or tab-
lets.
Please note that the Mercedes-Benz Guides app
may not yet be available in your country.
Mercedes-Benz USA, LLC
Mercedes-Benz Canada, Inc.
A Daimler Company
4635842905
É4635842905ÁËÍ

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

Transmissionsee Automatic transmission
Transmission positions .................... 114
Transporting the vehicle .................. 253
Traveling uphill
Brow of hill ..................................... 132
Trim pieces (cleaning instruc-
tions) .................................................. 241
Trip computer (on-board com-
puter) .................................................. 163
Trip odometer
Calling up ....................................... 163
Resetting (on-board computer) ...... 163
Turn signals
Display message ............................ 180
Replacing bulbs (front) ..................... 91
Switching on/off .............................. 88
TV
Operating (on-board computer) ..... 166
see Separate operating instructions
Two-way radio
Frequencies ................................... 281
Installation ..................................... 281
Transmission output (maximum) .... 281
TWR (Tongue Weight Rating) (defi-
nition) ................................................. 275
Type identification plate
see Vehicle identification plate
U
UnlockingEmergency unlocking ....................... 68
From inside the vehicle (central
unlocking button) ............................. 67
USB devices
Connecting to the Media Inter-
face ...............................................2 08
V
Vanity mirror
Sun visor ........................................ 216
Vehicle
Correct use ...................................... 27
Data acquisition ............................... 28
Display message ............................ 190
Equipment ....................................... 24 Individual settings .......................... 168
Limited Warranty .............................2
8
Loading .......................................... 266
Locking (in an emergency) ............... 68
Locking (SmartKey) .......................... 63
Lowering ........................................ 278
Maintenance .................................... 25
Operation outside the USA/
Canada ............................................ 25
Parking .......................................... 122
Parking for a long period ................ 124
Pulling away ................................... 106
Raising ........................................... 276
Securing from rolling away ............ 276
Tow-starting ................................... 254
Towing ........................................... 251
Transporting .................................. 253
Unlocking (in an emergency) ........... 68
Unlocking (SmartKey) ...................... 63
Vehicle data ................................... 288
Vehicle data ....................................... 288
Vehicle data (off-road driving)
Approach/departure angle ............ 290
Fording depth ................................ 290
Maximum gradient climbing abil-
ity .................................................. 290
Vehicle dimensions ........................... 288
Vehicle emergency locking ................ 68
Vehicle identification number
see VIN
Vehicle identification plate .............. 282
Vehicle tool kit .................................. 244
Ventilation
Setting the airflow ........................... 99
Video
Operating the DVD ......................... 166
see also Digital Operator's Man-
ual .................................................. 203
VIN
Type plate ...................................... 282
W
Warning and indicator lampsABS ................................................ 194
Brakes ........................................... 193
Check Engine ................................. 199
Coolant .......................................... 199
20Index

systems, e.g. the brake system. Use only genu-
ine Mercedes-Benz parts or parts of equal qual-ity. Only use tires, wheels and accessories that
have been specifically approved for your vehi-
cle.
Genuine Mercedes-Benz parts are subject to
strict quality control. Every part has been spe-
cifically developed, manufactured or selected
for and adapted to Mercedes-Benz vehicles.
Therefore, only genuine Mercedes-Benz parts
should be used.
More than 300,000 different genuine
Mercedes-Benz parts are available for
Mercedes-Benz models.
All authorized Mercedes-Benz Centers maintain
a supply of genuine Mercedes-Benz parts for
necessary service and repair work. In addition,
strategically located parts delivery centers pro-
vide quick and reliable parts service.
Always specify the vehicle identification number
(VIN) when ordering genuine Mercedes-Benz
parts (
Ypage 282).
Operator's Manual
Vehicle equipment
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Bear in mind
that your vehicle may not feature all functions
described here. This also applies to safety-
relevant systems and functions. The equip-
ment in your vehicle may therefore differ from
that shown in the descriptions and illustra-
tions.
The original purchase agreement lists all sys-
tems installed in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-
let are important documents and should be kept
in the vehicle.
Service and vehicle operation
Warranty
The Limited Warranty for your vehicle applies in
accordance with the warranty terms and condi-
tions in the Service and Warranty Information
booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-installed parts in
accordance with the following warranty terms
and conditions:
RNew Vehicle Limited Warranty
REmission System Warranty
REmission Performance Warranty
RCalifornia, Connecticut, Maine, Massachu-
setts, New York, Pennsylvania, Rhode Island
and Vermont Emission Control System War-
ranty
RState warranty enforcement laws (lemon
laws)
Replacement parts and accessories are covered
by the Mercedes-Benz Parts and Accessories
warranties. These are available at any author-
ized Mercedes-Benz Center.
iShould you lose your Service and Warranty
Information booklet, have an authorized
Mercedes-Benz Center arrange for a replace-
ment. The new Service and Warranty Infor-
mation booklet will be posted to you.
Information for customers in Califor-
nia
Under California law you may be entitled to a
replacement of your vehicle or a refund of the
purchase price or lease price, if after a reason-
able number of repair attempts Mercedes-Benz
USA, LLC and/or its authorized repair or service
facilities fail to fix one or more substantial
defects or malfunctions in the vehicle that are
covered by its express warranty.
During the period of 18 months from original
delivery of the vehicle or the accumulation of
18,000 miles (approximately 29,000 km) on the
odometer of the vehicle, whichever occurs first,
a reasonable number of repair attempts is pre-
sumed for a retail buyer or lessee if one or more
of the following occurs:
(1) the substantial defect or malfunction can result in death or serious injuries for the
24Service and vehicle operation
Introduction

vehicle occupants while driving and this
defect has already been repaired at least
twice and Mercedes-Benz, LLC has been
informed in writing of the necessity of a
repair.
(2) the defect or malfunction, though less seri- ous than (1) above, has already been
repaired at least four times and Mercedes-
Benz has been informed in writing of the
necessity of a repair.
(3) the vehicle cannot be used for longer than 30 calendar days because of repair work
resulting from this or other substantial
defects or malfunctions.
Please send your written notice to:
Mercedes-Benz USA, LLC
Customer Assistance Center
3 Mercedes Drive
Montvale, NJ 07645-0350
Maintenance
Always bring the Maintenance Booklet with you when taking the vehicle to an authorized
Mercedes-Benz Center. Your customer service
advisor will enter every service into your Main-
tenance Booklet on your behalf.
Roadside Assistance
The Mercedes-Benz Roadside Assistance Pro-
gram offers technical help in the event of a
breakdown. Calls to the toll-free Roadside Assis-
tance Hotline are answered by our agents 24
hours a day, 365 days a year.
1-800-FOR-MERCedes (1-800-367-6372)
(USA)
1-800-387-0100 (Canada)
For additional information, refer to the
Mercedes-Benz Roadside Assistance Program
brochure (USA) or the "Roadside Assistance"
section in the Service and Warranty Booklet
(Canada). You will find both in the vehicle docu-
ment wallet.
Change of address or change of own-
ership
In the event of a change of address, please sendus the "Notification of Address Change" in the Service and Warranty Booklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA) at the hotline number
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service Center (Canada) at
1-800-387-0100. This will assist us in contact-
ing you in a timely manner should the need arise.
If you sell your Mercedes, please leave all liter-
ature in the vehicle so that it is available to the
next owner.
If you have purchased a used car, please send us
the "Notification of Used Car Purchase" in the
Service and Warranty Booklet or simply call the
Mercedes-Benz Customer Assistance Center
(USA) at the hotline number
1-800-FOR-MERCedes (1-800-367-6372) or
Customer Service (Canada) at 1-800-387-0100.
Vehicle operation outside the USA
and Canada
When you are abroad with your vehicle, observe
the following points:
RService facilities or replacement parts may
not be readily available.
RLead-free fuel for vehicles with a catalytic
converter may not be available. Leaded fuel
can cause damage to the catalytic converter.
RThe fuel may have a considerably lower
octane number. Unsuitable fuel can cause
engine damage.
Some Mercedes-Benz models are available for
delivery in Europe through our European Deliv-
ery Program. For details, consult an authorized
Mercedes-Benz Center or write to one of the
following addresses.
In the USA
Mercedes-Benz USA, LLC
European Delivery Department
One Mercedes Drive
Montvale, NJ 07645-0350
In Canada
Mercedes-Benz Canada, Inc.
European Delivery Department
98 Vanderhoof Avenue
Toronto, Ontario M4G 4C9
Service and vehicle operation25
Introduction
Z

Sports Utility Vehicle
GWARNING
Due to the high center of gravity, the vehicle
may start to skid and roll over in the event of
an abrupt steering maneuver and/or when
the vehicle's speed is not adapted to the road
conditions. There is a risk of an accident.
Always adapt your speed and driving style to
the vehicle's driving characteristics and to the
prevailing road and weather conditions.
Utility vehicles have a significantly higher roll-
over rate than other types of vehicles.
Failure to operate this vehicle safely may result
in an accident, rollover of the vehicle, and severe
or fatal injury.
In a rollover crash, an unbelted person is signif-
icantly more likely to die than a person wearing
a seat belt.
You and all vehicle occupants should always
wear your seat belts.
Operating safety
Important safety notes
GWARNING
If you do not have the prescribed service/
maintenance work or any required repairs
carried out, this can result in malfunctions or system failures. There is a risk of an accident.
Always have the prescribed service/mainte-
nance work as well as any required repairs
carried out at a qualified specialist workshop.
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system. There is a risk of fire.
When driving off road or on unpaved roads,
check the vehicle's underside regularly. In
particular, remove parts of plants or other
flammable materials which have become
trapped. In the case of damage, contact a
qualified specialist workshop.
GWARNING
Modifications to electronic components, their software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
!There is a risk of damage to the vehicle if:
Rthe vehicle becomes stuck, e.g. on a high
curb or an unpaved road
Ryou drive too fast over an obstacle, e.g. a
curb, a speed bump or a pothole in the road
Ra heavy object strikes the underbody or
parts of the chassis
In situations like this, the body, the under-
body, chassis parts, wheels or tires could be
damaged without the damage being visible.
Components damaged in this way can unex-
pectedly fail or, in the case of an accident, no
longer withstand the loads they are designed
to.
If the underbody paneling is damaged, com-
bustible materials such as leaves, grass or
twigs can gather between the underbody and
the underbody paneling. If these materials
come in contact with hot parts of the exhaust system, they can catch fire.
In such situations, have the vehicle checked
and repaired immediately at a qualified spe-
cialist workshop. If on continuing your jour-
ney you notice that driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic condi-
tions. In such cases, consult a qualified spe-
cialist workshop.
Declaration of conformity for wireless
vehicle components
USA: "The wireless devices of this vehicle com-
ply with Part 15 of the FCC Rules. Operation is
26Operating safety
Introduction

subject to the two following two conditions: 1)
These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation. Changes
or modifications not expressly approved by the
party responsible for compliance could void the
user’s authority to operate the equipment."
Canada:"The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions: (1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."
Diagnostics connection
The diagnostics connection is only intended for
the connection of diagnostic equipment at a
qualified specialist workshop.
GWARNING
If you connect equipment to a diagnostics
connection in the vehicle, it may affect the
operation of vehicle systems. As a result, the
operating safety of the vehicle could be affec-
ted. There is a risk of an accident.
Only connect equipment to a diagnostics con-
nection in the vehicle, which is approved for
your vehicle by Mercedes-Benz.
GWARNING
Objects in the driver's footwell may restrict
the clearance around the pedals or block a
depressed pedal. This jeopardizes the oper-
ating and road safety of the vehicle. There is a risk of an accident.
Stow all objects securely in the vehicle so that
they do not get into the driver's footwell.
When using floormats or carpets, make sure
that they are properly secured so that they do not slip or obstruct the pedals. Do not place
several floormats or carpets on top of one
another.
!If the engine is switched off and equipment
on the diagnostics connection is used, the
starter battery may discharge. Connecting equipment to the diagnostics con-
nection can lead to emissions monitoring infor-
mation being reset, for example. This may lead
to the vehicle failing to meet the requirements of
the next emissions test during the main inspec-
tion.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop. It has the necessary
specialist knowledge, tools and qualifications to
correctly carry out the work required on your
vehicle. This is especially the case for work rel-
evant to safety.
Observe the notes in the Maintenance Booklet.
Always have the following work carried out at an
authorized Mercedes-Benz Center:
Rwork relevant to safety
Rservice and maintenance work
Rrepair work
Ralterations, installation work and modifica-
tions
Rwork on electronic components
Correct use
If you remove any warning stickers, you or oth-
ers could fail to recognize certain dangers.
Leave warning stickers in position.
Observe the following information when driving
your vehicle:
Rthe safety notes in this manual
Rtechnical data for the vehicle
Rtraffic rules and regulations
Rlaws and safety standards pertaining to motor
vehicles
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
Operating safety27
Introduction
Z