check engine MERCEDES-BENZ G-Class 2012 W463 Owner's Manual

1, 2, 3 ...
115 V socket ...................................... 197
12 V socket
........................................ 196
4ETS (Electronic Traction System) Function/notes ................................ 56
4MATIC (permanent four-wheel
drive) .................................................. 141A
ABS (Anti-lock Braking System) Display message ............................ 166
Function/notes

................................ 54
Warning lamp ................................. 181
Active service system
see Service interval display
Additives
Engine oil ....................................... 275
Adjusting the seat ............................... 76
Air bags Front air bag (driver, front
passenger) ....................................... 35
Important safety notes .................... 34
PASSENGER AIR BAG
OFF- indicator lamp .......................... 37
Safety guidelines ............................. 33
Window curtain air bag ....................37
Air-conditioning system
see Climate control
Air pressure
see Tire pressure
Air vents ............................................. 111
Important safety notes .................. 110
Rear ............................................... 111
Setting ........................................... 110
Setting the center air vents ...........111
Setting the side air vents ............... 111
Alarm system
see ATA
Anti-lock Braking System
see ABS
Anti-Theft Alarm system
see ATA
Approach/departure angle ..............138
Ashtray ............................................... 195ATA (Anti-Theft Alarm system)
Activating/deactivating

...................57
Function ........................................... 57
Switching off the alarm .................... 57
Authorized Mercedes-Benz Center
see Qualified specialist workshop
AUTO lights
Display message ............................ 168
Automatic car wash .......................... 217
Automatic transmission Driving tips .................................... 121
Emergency running mode ..............124
Important safety notes .................. 119
Kickdown ....................................... 121
Malfunction .................................... 124
Pulling away ................................... 116
Releasing the parking lock
manually ........................................ 124
Selector lever ................................ 120
Automatic transmission
emergency mode ............................... 124 B
Backup lamp Display message
............................ 170
BAS (Brake Assist System)

.................54
Battery Charging ........................................ 231
Checking (SmartKey) ....................... 62
Display message ............................ 172
Important safety guidelines
(SmartKey) ....................................... 62
Important safety notes .................. 230
Jump-starting ................................. 233
Replacing (SmartKey) ...................... 62
Belt
see Seat belts
Brake fluid
Display message ............................ 166
Notes ............................................. 275
Brake fluid level ................................ 215
Brake lamps (display message) .......168
Brakes ABS .................................................. 54
BAS .................................................. 54
Brake fluid (notes) .........................275
Display messages ..........................1664
Index

Problems with "cooling with air
dehumidification"
...........................
107
Problem with the rear window
defroster ........................................ 109
Refrigerant ..................................... 275
Setting the air distribution .............107
Setting the airflow ......................... 108
Setting the air vents ......................110
Setting the temperature ................ 107
Switching air-recirculation mode
on/off ............................................ 110
Switching the rear window
defroster on/off ............................ 109
Switching the residual heat
function on/off .............................. 110
Windshield defroster ......................108
Cockpit
Overview .......................................... 24
Consumption statistics (on-board
computer) .......................................... 162
Convenience closing feature ..............69
Convenience opening feature ............69
Coolant (engine) Checking the level ......................... 213
Display message ............................ 170
Notes ............................................. 276
Temperature gauge ........................ 152
Cooling
see Climate control
Cornering lamps .................................. 92
Correct use .......................................... 21
Cruise control Cruise control lever .......................140
Display message ............................ 174
Function/notes ............................. 139
Cup holders ........................................ 193
Customer Assistance Center
(CAC) ............................................... 21
Customer Relations Department .......21 D
Daytime running lamps Switching on/off (on-board
computer) ...................................... 160
Defrosting the windshield ................108Delayed switch-off
Exterior lighting (on-board
computer) ...................................... 160
Interior lighting (on-board
computer) ...................................... 161
Differential locks ............................... 148
Digital speedometer .........................156
Display (cleaning instructions) ........220
Display messages Calling up (on-board computer)
.....165
Driving systems ............................. 174
General notes ................................ 165
Hiding (on-board computer) ........... 165
Safety systems .............................. 166
Service interval display .................. 215
Distance recorder ............................. 156
Door control panel Overview .......................................... 30
Doors
Automatic locking ............................ 66
Automatic locking (on-board
computer) ...................................... 161
Display message ............................ 177
Emergency locking ........................... 66
Emergency unlocking .......................66
Important safety notes .................... 65
Opening (from inside) ......................65
Drinking and driving .........................129
Drinks holder see Cup holder
Driving abroad ..................................... 88
Driving in mountainous terrain Approach/departure angle ............ 138
Driving downhill ............................. 139
Gradient-climbing capability
(maximum) ..................................... 139
Driving on flooded roads ..................133
Driving safety systems 4ETS (Electronic Traction System) ...56
ABS (Anti-lock Braking System) ....... 54
BAS (Brake Assist System) ..............54
Electronic brake force distribution ... 57
ESP ®
(Electronic Stability
Program) .......................................... 55
Important safety information ........... 53
Overview .......................................... 536
Index

Driving systems
Cruise control ................................ 139
Rear view camera .......................... 144
Driving tips
Automatic transmission
.................121
Brakes ........................................... 132
Downhill gradient ........................... 130
Driving on flooded roads ................133
Driving on sand .............................. 137
Driving on wet roads ...................... 132
Driving over obstacles ................... 137
General .......................................... 129
Gravel roads .................................. 137
Hydroplaning ................................. 132
Icy road surfaces ........................... 134
Off-road driving .............................. 135
Off-road fording ............................. 133
Tire ruts ......................................... 137
Wet road surface ........................... 131
DVD audio (on-board computer) ...... 157
DVD video (on-board computer) ......157 E
EASY-ENTRY feature ............................ 83
Activating/deactivating (on-
board computer) ............................ 161
EASY-EXIT feature

............................... 83
EBD (electronic brake force
distribution)
Function/notes ................................ 57
Electrical fuses
see Fuses
Electronic Stability Program
see ESP ®

Electronic Traction Support
see 4ETS
Emergency call
see mbrace
Emergency release
Fuel filler flap ................................. 126
Vehicle ............................................. 66
Emergency Tensioning Devices
Function ........................................... 47
Safety guidelines ............................. 33
Emissions control
Service and warranty information .... 17Engine
Check Engine warning lamp ........... 184
Display message

............................ 170
Irregular running ............................ 118
Starting problems .......................... 118
Starting the engine with the
SmartKey ....................................... 116
Switching off .................................. 128
Engine electronics
Problem (malfunction) ...................118
Engine number .................................. 272
Engine oil Adding ........................................... 213
Additives ........................................ 275
Checking the oil level ..................... 211
Display message ............................ 172
Notes about oil grades ................... 275
Viscosity ........................................ 275
ESP ®
(Electronic Stability
Program) Activating/deactivating ................... 56
Display message ............................ 166
Important safety information ........... 55
Exhaust check ................................... 130
Exhaust tail pipe (cleaning
instructions) ...................................... 220
Exterior lighting Delayed switch-off (on-board
computer) ...................................... 160
Exterior mirrors
Adjusting ......................................... 84
Dipping (automatic) .........................84
Out of position (troubleshooting) .....84
Storing settings (memory
function) .......................................... 85
Storing the parking position ............. 85 F
First-aid kit ......................................... 224
Flat tire Changing a wheel/mounting the
spare wheel

................................... 227
Preparing the vehicle .....................226
Raising the vehicle ......................... 227
Floormat ............................................. 207
Front fog lamp (display message) ...169 Index
7

System ..........................................
198
Vehicle remote unlocking .............. 202
Mechanical key
Function/notes ................................
61
Loss ................................................. 64
Memory card
Operating (on-board computer) ..... 157
see separate operating instructions
Memory function ................................. 85
Menu (on-board computer) Audio ............................................. 156
DVD ............................................... 157
Message memory .......................... 165
Navigation ..................................... 158
Overview of menus ........................ 155
Resetting to factory settings .......... 158
Settings ......................................... 158
Standard display ............................ 156
Telephone ...................................... 163
Trip computer ................................ 162
Messages
see Display messages
Mirrors
Sun visor ........................................ 194
Mobile phone
Menu (on-board computer) ............ 163
MP3
Operating (on-board computer) ..... 157
see separate operating instructions
Multicontour seat ................................ 79
Multifunction display ........................ 154
Multifunction steering wheel Operating the on-board computer . 153
Overview .......................................... 27N
Navigation On-board computer ....................... 158
see separate operating instructions


NECK-PRO head restraints
Operation ......................................... 40
Resetting after being triggered ........ 41
Notes on breaking-in a new
vehicle ................................................ 114 O
Occupant safety Children in the vehicle .....................47
System overview .............................. 32
Octane number (fuel) ........................274
Odometer ........................................... 156
Off-road 4MATIC .......................................... 141
Differential locks ............................ 148
Off-road ABS

.................................... 54
Off-road driving
Checklist ........................................ 136
Driving on sand .............................. 137
Important safety notes .................. 134
Off-road fording ................................. 133
Oil see Engine oil
On-board computer
Audio menu ................................... 156
Convenience submenu .................. 161
Display messages ..........................165
Factory settings ............................. 158
Important safety notes .................. 152
Message memory menu ................. 165
Navigation menu ............................ 158
Operation ....................................... 153
Overview of menus ........................ 155
Settings menu ............................... 158
Standard display menu ..................156
Status bar ...................................... 159
Telephone menu ............................ 163
Trip computer menu ...................... 162
Vehicle submenu ........................... 161
Video DVD operation ..................... 157
On-board computer language ..........159
On-board diagnostics interface .......... 20
Operating safety Important safety notes .................... 19
On-board diagnostics interface ........ 20
Operating system
see On-board computer
Outside temperature
Calling up (on-board computer) ..... 156
Display ........................................... 153
Overhead control panel
Overview .......................................... 2910
Index

S
Safety Children in the vehicle .....................47
Child restraint systems ....................47
Overview of occupant safety
systems ...........................................
32
Safety systems
see Driving safety systems


Seat backrest
Folding back .................................. 191
Folding forwards ............................ 191
Seat belts
Adjusting the height ......................... 45
Belt force limiters ............................ 47
Cleaning ......................................... 222
Correct usage .................................. 42
Emergency Tensioning Devices ........ 47
Fastening ................................... 43, 44
Fastening, front ............................... 44
Fastening in the rear, center ............44
Important safety guidelines .............41
Releasing ......................................... 46
Safety guidelines ............................. 33
Special seat belt retractor ............... 49
Warning lamp ................................. 178
Warning lamp (function) ................... 46
Seat heating
Indicator lamp (malfunction) ............ 81
Seats
Adjusting the 4-way lumbar
support ............................................ 79
Adjusting the head restraint ............ 77
Cleaning the cover ......................... 221
Correct driver's seat position ........... 74
Important safety notes .................... 75
Multicontour seat ............................ 79
Storing settings (memory
function) .......................................... 85
Switching seat heating on/off ......... 80
Switching seat ventilation on/off ....81
Seat ventilation
Indicator lamp (malfunction) ............ 81
Sensors (cleaning instructions) .......220
Service indicator see Service interval display Service interval display
....................215
Displaying a
service message (on-
board computer) ............................ 216
Service products
Brake fluid ..................................... 275
Capacities ...................................... 273
Coolant (engine) ............................ 276
Engine oil ....................................... 275
Fuel ................................................ 273
Important safety notes .................. 272
Notes ............................................. 272
Refrigerant (air-conditioning
system) .......................................... 275
Washer fluid ................................... 277
Settings
Calling up a stored setting ............... 86
Factory (on-board computer) ......... 158
On-board computer ....................... 158
Setting the unit (on-board
computer)
Speedometer ................................. 159
Shift ranges ....................................... 121
Side marker lamp (display
message) ............................................ 169
Side windows Convenience closing feature ............ 69
Convenience opening feature .......... 69
Important safety information ........... 68
Opening/closing .............................. 68
Troubleshooting ............................... 69
Ski rack .............................................. 193
Sliding sunroof Important safety notes .................... 70
Opening/closing .............................. 70
Operating manually ..........................71
SmartKey
Changing the battery ....................... 62
Changing the programming ............. 61
Checking the battery ....................... 62
Convenience closing feature ............ 69
Convenience opening feature .......... 69
Important safety notes .................... 60
Loss ................................................. 64
Malfunction ...................................... 64
Starting the engine ........................ 116
Snow chains ...................................... 24512
Index

Unladen weight (definition) ............
263
Wear indicator (definition) .............265
Wheel rim (definition)
....................263
see Flat tire
Top Tether ............................................ 51
Tow-away alarm .................................. 58
Towing Important safety guidelines ...........235
In the event of malfunctions ..........237
Towing eye
Front .............................................. 235
Rear ............................................... 235
Trailer loads and drawbar
noseweights ...................................... 256
Transfer case Display message ............................ 178
Shift ranges ................................... 145
Transmission position display .........120
Transmission positions ....................120
Transporting the vehicle .................. 236
Traveling uphill Brow of hill ..................................... 139
Trip computer (on-board
computer) .......................................... 162
Trip odometer Calling up ....................................... 156
Turn signal
Display message ............................ 168
Turn signals ......................................... 91
TWR (Tongue Weight Rating)
(definition) ......................................... 265
Type identification plate see Vehicle identification plate U
Ultrasonic backing up aid Function/notes

............................. 142
Malfunction .................................... 144
Range of the sensors ..................... 142
Warning display ............................. 143
Unlocking
Emergency unlocking .......................66
From inside the vehicle (central
unlocking button) ............................. 65 V
Vanity mirror Sun visor ........................................ 194
Vehicle
Data acquisition ............................... 22
Emergency unlocking .......................66
Equipment

....................................... 17
Individual settings (on-board
computer) ...................................... 158
Loading .......................................... 252
Lowering ........................................ 229
Maintenance .................................... 18
Parking for a long period ................ 128
Raising ........................................... 227
Reporting problems .........................21
Towing away .................................. 235
Tow-starting ................................... 235
Transporting .................................. 236
Vehicle dimensions
Technical data ............................... 277
Vehicle identification number
see VIN
Vehicle identification plate ..............271
Vehicle tool kit .................................. 224
Vehicle weights Technical data ............................... 277
Ventilation
Setting the air distribution .............107
Setting the airflow ......................... 108
Video (DVD) ........................................ 157
VIN ...................................................... 271 W
Warning and indicator lamps ABS

................................................ 181
Brakes ........................................... 180
Check Engine ................................. 184
ESP ®
.............................................. 182
ESP ®
OFF ....................................... 182
Fuel tank ........................................ 184
Overview .......................................... 26
PASSENGER AIRBAG OFF ................ 37
Reserve fuel ................................... 184
Seat belt ........................................ 178 Index
15

Warning and indicator lamps
Function Page
:
Low-beam headlamps 89
;
ESP
®
OFF 182
=
ESP
® 182
?
Turn signal 91
A
ABS 181
B
Seat belt 178
C
SRS 183
D
Check Engine (Canada
only)
184 Function Page
E
Check Engine (USA only) 184
F
Reserve fuel 184
G
High-beam headlamps 91
H
Tire pressure monitor 185
I
Brakes (USA only) 180
J
Brakes (Canada only) 18026
Instrument clusterAt a glance

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please
note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops (Y page 20). Occupant safety
Overview of occupant safety
In this section you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint system consists of:
R seat belts
R child restraint systems
R LATCH-type (ISOFIX) child seat securing
system
Additional protection is provided by:
R SRS (Supplemental Restraint System)
R NECK-PRO head restraints
R air bag system components with:
-45
indicator lamp
- front-passenger seat with BabySmart™
automatic child recognition
The different air bag systems work
independently of each other. The protective
functions of the system work in conjunction
with each

other. Not all air bags are deployed
in an accident. G
WARNING
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead to
the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See "Children in the vehicle"
(Y page 47) for further information on
infants and

children traveling in the vehicle
as well as on child restraint systems. SRS
(Supplemental Restraint System)
Introduction SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS consists of:
R
the + SRS warning lamp
R air bags
R air bag control unit (with crash sensors)
R Emergency Tensioning Devices
R seat belt force limiters
SRS warning lamp SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The
+
SRS

warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started. 32
Occupant safety
Safety

G
WARNING
The SRS self-check has detected a
malfunction if the + SRS indicator lamp:
R does not light up at all
R does not go out after approximately four
seconds after the engine is started
R lights up

after the engine is started or while
the vehicle is in motion
For your safety, Mercedes-Benz strongly
recommends that you have the system
checked as soon as possible at a qualified
specialist workshop. SRS may otherwise fail
to activate when it is needed in the event of
an accident, which could lead to serious or
fatal injuries. SRS might also be activated
unexpectedly and unnecessarily, which could
also result in injury.
In addition, work carried out improperly on
SRS may render SRS inoperative or cause
unintended air bag deployment. Work on the
SRS system should only be carried out by
qualified specialist personnel. Consult a
qualified specialist workshop.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz Center
for details. USA only: for further information,
contact our Customer Assistance Center at
1-800-FOR-MERCedes (1-800-367-6372).
Safety guidelines for seat belts,
Emergency Tensioning Devices (ETDs)
and air bags G
WARNING
R Damaged seat

belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or supplied by an authorized
Mercedes-Benz Center.
R Air bags and pyrotechnic Emergency
Tensioning Devices (ETDs) contain
perchlorate material, which may require
special handling and regard for the environment.
Check your national disposal
guidelines. California residents, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
R Air bags

and ETDs are designed to function
on a one-time-only basis. An air bag or ETD
that has deployed must be replaced.
R Do not pass seat belts over sharp edges.
They could tear.
R Do not make any modification that could
change the effectiveness of the seat belts.
R Do not bleach or dye seat belts as this may
severely weaken them. In a crash they may
not be able to provide adequate protection.
R No modifications of any kind may be made
to any components or wiring of the SRS.
R Do not change or remove any component
or part of the SRS.
R Do not install additional trim material, seat
covers, badges, etc. over the steering
wheel hub, front-passenger front air bag
cover, outer sides of the seat backrests,
door trim panels, or door frame trims.
R Do not install additional electrical/
electronic equipment on or near SRS
components and wiring.
R Keep area between air bags and occupants
free of objects (e.g. packages, purses,
umbrellas, etc.).
R Do not hang items such as coat hangers
from the coat hooks or handles over the
door. These items may be thrown around in
the vehicle and cause head and other
injuries when the window curtain air bag is
deployed.
R Air bag system components will be hot after
an air bag has inflated. Do not touch them.
R Never place your feet on the instrument
panel, dashboard, or on the seat. Always
keep both feet on the floor in front of the
seat.
R Improper repair work on the SRS creates a
risk of rendering the SRS inoperative or
causing unintended air bag deployment.
Work on the SRS must therefore only be Occupant safety
33
Safety
Z

Driver's air bag
: deploys in front of the
steering wheel; front-passenger front air
bag ; deploys
in front of and above the glove
box.
They are deployed:
R in the event of certain frontal impacts
R if the system determines that air bag
deployment can offer additional protection
to that provided by the seat belt
R depending on whether the seat belt is being
used
R independently of other air bags in the
vehicle
If the vehicle overturns, the front air bags are
generally not deployed unless the system
detects high vehicle deceleration in a
longitudinal direction.
Your vehicle has an adaptive, two-stage
driver's air bag. In the event of a collision, the
air bag control unit evaluates the vehicle
deceleration. When the first deployment
threshold is reached, the front air bag is filled
with enough propellant gas to reduce the risk
of injuries. The front air bag is fully deployed
if a second deployment threshold is exceeded
within a few milliseconds.
The front air bags will not deploy in impacts
with vehicle deceleration or acceleration
rates which do not exceed the system’s
preset deployment thresholds for vehicle
deceleration or acceleration. You will then be
protected by the fastened seat belt. The front-passenger front air bag will only
deploy if:
R
the front-passenger seat is occupied.
R the 45 indicator

lamp in the center
console is not lit (Y page 37).
R the impact exceeds a preset deployment
threshold.
The front-passenger air bag is automatically
activated and deactivated. Both driver and
passenger should always check whether the
front-passenger air bag is activated or
deactivated.
The deployment of the driver's air bag does
not mean that the front-passenger air bag will
also deploy. If the system recognizes that the
front-passenger seat is empty, the front-
passenger air bag does not deploy even if the
impact fulfills the criteria and the driver's air
bag has deployed.
If the front-passenger seat is recognized as
occupied, the 45 indicator lamp lights
up for approximately six seconds if
R you turn the SmartKey to position 1 or 2 in
the ignition lock.
R the engine is running and then you switch
it off.
This indicates the operational readiness of
the front-passenger air bag.
Note that objects placed on the front-
passenger seat may cause the system to
recognize the seat as occupied. This can
result in the deployment of the front-
passenger air bag if the impact fulfills the
specified criteria. If the 45 indicator
lamp is lit up, the front-passenger air bag is
deactivated and will not deploy should the
situation arise. If indicator lamp 45 is
not lit up, the front-passenger air bag is
activated and will deploy should the situation
arise. G
WARNING
Your vehicle is equipped with air bag
technology which disables the front- 36
Occupant safety
Safety