ignition MERCEDES-BENZ G-CLASS SUV 2014 Service Manual

If the gear change is not completed, the
following messages could appear in the
display:
R TC shift Conditions Not Fulfilled TC shift Conditions Not Fulfilled
You have not met one or more shift
conditions.
R TC NEUTRAL On
TC NEUTRAL On
The transfer case has canceled the gear
change process and is in N. Transfer case
position N
N appears in the multifunction
display.
R TC shift Canceled TC shift Canceled
The transfer case has not performed the
gear change process.
X Carry out the gear change process again.
Make sure to meet all conditions for
changing gears.
R TC Malfunction Visit Workshop
TC Malfunction Visit Workshop
There is a malfunction in the transfer case.
X Do not shift the transfer case.
X Have the vehicle checked as soon as
possible at a qualified specialist workshop.
Shifting to neutral G
WARNING
When the transfer case is in the neutral
position, power transmission to the driven
wheels is interrupted. As a result, the vehicle
could roll away. There is a risk of an accident.
Secure the vehicle with the parking brake, and
on uphill or downhill gradients, also secure it
with a device such as a wheel chock.
X Turn the SmartKey to position 2in the
ignition lock (Y page 97).
X Apply the parking brake.
X Depress the brake pedal.
X Move the selector lever to position
N(Y page 100).
X Press and hold LOW RANGE button ;for
approximately 10 seconds.
When the shift procedure is complete, the
TC In Neutral TC In Neutral message appears in the
multifunction display for 5 seconds. If the gear change is not completed, the
following messages could appear in the
display (Y
page 144).
i If the transfer case is in Neutral, the
SmartKey is in the ignition lock and you
open the driver's door, the TC In TC In
Neutral Neutral message appears in the
multifunction display. If you then release
the parking brake, a warning tone will
sound. Differential locks
General notes G
WARNING
When the differential locks are engaged, ABS,
4ETS, ESP ®
and BAS are deactivated. As a
result, the wheels could lock when braking
and the braking distance is increased. There
is a risk of an accident.
Disengage the differential locks immediately
on firm surfaces with good grip.
! In order to avoid damage to the transfer
case, you must operate the vehicle on a
dynamometer (1-axle dynamometer) only
if:
R the axle not driven on is jacked up
or
R the corresponding propeller shaft is
disconnected and the transfer case
differential lock is engaged.
Otherwise, the transfer case can be
damaged.
Differential locks improve the traction of the
vehicle. Off-road driving systems
131Driving and parking Z

R
Multifunction display
R Outside temperature display Operating the on-board computer
Overview :
Multifunction display
; To switch on the Voice Control System;
see the separate operating instructions
= Right control panel
? Left control panel
A Back button
X To activate the on-board computer: turn
the SmartKey to position 1(Ypage 97) in
the ignition lock.
You can control the multifunction display and
the settings in the on-board computer using
the buttons on the multifunction steering
wheel. Left control panel =
; R
Calls up the menu and menu bar 9
:
Press briefly:
R
Scrolls in lists
R Selects a submenu or function
R In the Audio
Audio menu: selects a
stored station, an audio track or
a video scene
R In the Tel Tel(telephone) menu:
switches to the phone book and
selects a name or telephone
number 9
:
Press and hold:
R
In the Audio Audio menu: selects the
previous/next station or selects
an audio track or a video scene
using rapid scrolling
R In the Tel Tel(telephone) menu:
starts rapid scrolling if the phone
book is open a R
Confirms a selection/display
message
R In the Tel Tel(telephone) menu:
switches to the telephone book
and starts dialing the selected
number
R In the Audio Audio menu: stops the
station search function at the
desired station Right control panel
~ R
Rejects or ends a call
R Exits phone book/redial
memory 6 R
Makes or accepts a call
R Switches to the redial memory Displays and operation
143On-board computer and displays Z

Message memory menu
The on-board computer saves certain display
messages. You can call up the display
messages in the message memory.
X Press the =or; button on the
steering wheel to select the Serv.
Serv.menu.
If there are display messages, the
multifunction display shows 2 Messages 2 Messages,
for example.
X Press the 9or: button to select the
entry, e.g. 2 Messages
2 Messages.
X Press ato confirm.
X Press the 9or: button to scroll
through the display messages.
When the ignition is switched off, all display
messages are deleted, apart from some high-
priority display messages. Once the causes of
the high-priority display messages have been
rectified, the corresponding display
messages are also deleted. Display messages
145On-board computer and displays Z

The mbrace system
To adjust the volume during an mbrace call,
proceed as follows:
X Press the WorX button on the
multifunction steering wheel.
or
X Use the COMAND volume control.
The mbrace system provides three different
services:
R automatic and manual emergency call
R Roadside Assistance call
R MB Info call
USA only: you can find further information
and a description of all available features
under "Owners Online" at http://
www.mbusa.com.
System self-test G
WARNING
A malfunction in the system has been
detected if one of the following conditions
occurs:
R the indicator lamp in the SOS button does
not light up during the system self-
diagnosis.
R the indicator lamp in the ºRoadside
Assistance button does not light up during
the system self-diagnosis.
R the indicator lamp in the Einformation
button does not light up during the system
self-diagnosis.
R the indicator lamp in the SOS button,
º Roadside Assistance button or E
information button continues to be lit red
after the system self-diagnosis.
R the Tele
Tele Aid Aidinoperative
inoperative orTele
Tele Aid
Aid
not activated
not activated message appears on the
multifunction display after the system self-
diagnosis.
If a malfunction is indicated as outlined above,
the system may not operate as expected. In the event of an emergency, assistance must
be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R
USA: Response Center at
1-888-990-9007
R Canada: Customer Service at
1-888-923-8367
After you have switched on the ignition, the
system carries out a self-diagnosis.
Emergency call Important safety notes
G
WARNING
If the indicator lamp in the SOS button is
flashing continuously and there was no voice
connection to the Response Center
established, then the mbrace system could
not initiate an emergency call (e.g. the
relevant cellular phone network is not
available).
The message Call Failed Call Failed appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be
summoned by other means.
! You must have a license agreement to
activate the mbrace service. Ensure that
your system is activated and ready for use,
and press the EMB Info call button to
register. If one of these steps is not carried
out, it may not be possible to activate the
system.
If you have questions about the activation,
contact one of the following telephone
hotlines:
R USA: Response Center at
1-888-990-9007
R Canada: Customer Service at
1-888-923-8367 190
FeaturesSto
wage an d features

i
To achieve the best result, insert new
batteries in garage door remote control
A of your garage door drive before
programming.
X Delete the memory of the integrated
remote control (Y page 189) before
programming it for the first time.
X Turn the SmartKey to position
2(Y page 97) in the ignition lock.
X Press and hold transmitter button ;,=
or ?.
After a short time, indicator lamp :will
start flashing. It flashes approximately
once per second.
i Indicator lamp :flashes immediately
the first time that the transmitter button is
programmed. If this transmitter button has
already been programmed, indicator
lamp :will only start flashing at a rate of
once a second after 20 seconds have
elapsed.
X Continue to hold the transmitter button.
X Point transmitter button Aof garage door
remote control Btowards the transmitter
buttons on the rear-view mirror at a
distance of 2 to 12 inches (5 to 30 cm).
i The distance between garage door
remote control Aand the integrated
garage door opener depends on the system
of the garage door drive. Several attempts
might be necessary. You should test every
position for at least 20 seconds before
trying another position.
X Keep transmitter button Bon garage door
remote control Apressed until indicator
lamp :starts to flash rapidly.
The programming has been successful if
indicator lamp :flashes rapidly.
X Release transmitter buttons ;,=or?
on the integrated remote control and
transmitter button Bon the garage door
remote control. If indicator lamp
:goes out after
approximately 20 seconds and has not
flashed rapidly:
X Release transmitter buttons ;,=or?
on the integrated remote control and
transmitter button Bon the garage door
remote control.
X Repeat the procedure for the other
transmitter buttons. When doing so, vary
the distance between the garage door's
remote control and the transmitter buttons
in the rear-view mirror.
i If the garage door system works with a
rolling code, you must synchronize the
remote control integrated in the rear-view
mirror with the garage door system
receiver after programming.
You will find further information in the
garage door opening system's operating
instructions, e.g. the sections on
"Synchronizing the transmitter" or
"Registering a new transmitter". You can
also call the hotline mentioned above.
Synchronizing the rolling code Integrated remote control in the rear-view mirror
:
Indicator lamp
;=? Transmitter buttons
A Garage door remote control
B Transmitter button on the garage
door remote control
Your vehicle must be within reach of the
garage door or exterior gate drive. Make sure
that neither your vehicle nor any persons/ Features
195Stowage and features Z

objects are present within the sweep of the
door or gate.
Observe the safety notes when performing
the rolling code synchronization
(Y page 193).
X Turn the SmartKey to position
2(Y page 97) in the ignition lock.
X Press the programming button of the door
or gate drive (see the door or gate drive
operating instructions, e.g. under
"Programming of additional remote
controls").
i Usually, you now have 30 seconds to
initiate the next step.
X Press previously programmed button ;,
= or? of the integrated garage door
opener until the door closes.
The rolling code synchronization is then
complete.
Notes on programming the remote
control
Canadian radio frequency laws require a
"break" (or interruption) of the transmission
signals after broadcasting for a few seconds.
Therefore, these signals may not last long
enough for the integrated remote control to
recognize the signal during programming.
Comparable with Canadian law, American
garage door openers also have a built-in
"interruption".
If you live in Canada or have difficulties
programming the garage door opener
(regardless of where you live) when using the
programming steps, proceed as follows: Integrated remote control in the rear-view mirror
:
Indicator lamp
;=? Transmitter buttons
A Garage door remote control
B Transmitter button on the garage
door remote control
X Keep the transmitter button (;, =or?)
depressed until the integrated remote
control has been set up successfully.
X At the same time, press transmitter button
B of the garage door remote control for
two seconds, then release it for two
seconds, then press it again for two
seconds.
X Repeat this sequence on transmitter
button Bof the garage door remote
control until the frequency signal has been
saved.
X If the setup procedure is successful,
indicator lamp :flashes once slowly and
goes out after a few seconds.
X Continue with the other programming
steps (see above). 196
FeaturesStowage and features

Problems when programming
Integrated remote control in the rear-view mirror
: Indicator lamp
;=? Transmitter buttons
A Garage door remote control
B Transmitter button on the garage
door remote control
If you have problems when programming the
integrated remote control, please note the
following:
R Check the transmitter frequency of garage
door remote control A(which can usually
be found on the back of the remote
control).
The integrated remote control is
compatible with devices that have units
which operate in the frequency range of
280 to 390 MHz.
R Replace the batteries in garage door
remote control A. This increases the
probability of garage door remote control
A sending a strong and more precise
signal to the integrated remote control on
the rear-view mirror.
R When programming, hold garage door
remote control Aat varying distances and
angles from the transmitter button which
you are programming. Try various angles at
a distance between 2and 12 inches (5to
30 cm) or at the same angle but at varying
distances.
R If there is another garage door remote
control for the same device, perform the
programming steps again using that garage door opener. Before performing these
steps, make sure that new batteries have
been inserted in the garage door remote
control.
R Align the antenna cable of the garage door
opener unit. This can improve signal
reception/transmission.
Opening/closing the garage door :
Indicator lamp
;=? Transmitter buttons
A Garage door remote control
B Transmitter button on the garage
door remote control
Once programmed, the integrated remote
control will assume the function of the garage
door system's remote control. Please also
read the operating instructions for the garage
door system.
X Turn the SmartKey to position
2(Y page 97) in the ignition lock.
X Press transmitter button ;,=or? on
the integrated remote control in the rear-
view mirror that is programmed to operate
the garage door.
Garage door system with fixed code:
indicator lamp :lights up continuously.
Garage door system with rolling code:
indicator lamp :flashes briefly and then
lights up for approximately two seconds.
This is repeated for up to 20 seconds.
i The transmitter will transmit a signal for
as long as the transmitter button is being
pressed. The transmission will be halted Features
197Stowage and features Z

after a maximum of 20 seconds and
indicator lamp
:will flash. Press the
transmitter button again, if necessary.
Clearing the remote control memory :
Indicator lamp
;=? Transmitter buttons
A Garage door remote control
B Transmitter button on the garage
door remote control
X Turn the SmartKey to position
2(Y page 97) in the ignition lock.
X Press and hold transmitter buttons ;
and ?for approximately 20 seconds until
indicator lamp :flashes rapidly.
The memory is cleared.
i You should clear the remote control
memory before selling the vehicle. Floormat on the driver's side
G
WARNING
Whenever you are using a floormat, make sure
there is enough clearance and that the
floormat is securely fastened.
The floormat should always be securely
fastened using the fastening equipment.
Before driving off, check that the floormat is
securely in place and adjust it if necessary. A
loose floormat could slip and hinder proper
functioning of the pedals.
Do not place several floormats on top of each
other as this may impair pedal movement. X
Slide the seat backwards.
X To install: place the floormat in the
footwell.
X Press studs :onto retainers ;.
X To remove: pull the floormat out of
retainers ;.
X Remove the floormat. 198
FeaturesStowage and features

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 Read the information on qualified
specialist workshops: (Y page 27).Engine compartment
Hood
Important safety notes G
WARNING
If the hood is unlatched, it may open up when
the vehicle is in motion and block your view.
There is a risk of an accident.
Never unlatch the hood while driving. G
WARNING
Certain components in the engine
compartment may be very hot, e.g. the drive
system and radiator. Working in the engine
compartment poses a risk of injury.
If possible, let the drive system cool down and
only touch the following described
components. G
WARNING
Opening the hood when the engine is
overheated or when there is a fire in the
engine compartment could expose you to hot
gases or other service products. There is a
risk of injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department. G
WARNING
The engine compartment contains moving
components. Certain components, such as
the radiator fan, may continue to run or start
again suddenly when the ignition is off. There
is a risk of injury.
If you need to do any work inside the engine
compartment:
R switch off the ignition
R never reach into the area where there is a
risk of danger from moving components,
such as the fan rotation area
R remove jewelery and watches
R keep items of clothing and hair, for
example, away from moving parts G
WARNING
The engine is equipped with a transistorized
ignition system. Because of the high voltage,
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system:
R with the engine running
R while starting the engine
R when the ignition is switched on and the
engine is turned manually G
WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured
by the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield
wipers or the hood.
Do not touch the following when the ignition
is switched on:
R ignition coils
R spark plug connectors
R test socket 200
Engine compartmentMaintenance and care

X
Slowly slide oil dipstick :into the guide
tube to the stop, and take it out again.
If the level is between MIN mark =and
MAX mark ;, the oil level is correct.
X Add oil if necessary.
Checking the oil level using the on-
board computer !
Do not add too much oil. adding too much
engine oil can result in damage to the
engine or to the catalytic converter. Have
excess engine oil siphoned off.
G 65 AMG: the oil level can be checked using
the on-board computer only.
On all other models, the oil dipstick must be
used to check the engine oil level.
When checking the oil level:
R park the vehicle on a level surface.
R the engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
X Make sure that the SmartKey is in position
2in the ignition lock.
X Press the &or* button on the
steering wheel to select the following
message: The measurement takes a few seconds. You
will see one of the following messages in the
multifunction display:
R Engine Oil Level OK Engine Oil Level OK
R Add 1.0 qt
Add 1.0 qt (Canada:1.0 liter
1.0 liter) to
to
reach maximum oil level.
reach maximum oil level.
R Add 1.5 qts
Add 1.5 qts (Canada:1.5 liters
1.5 liters )to
to
reach maximum oil level.
reach maximum oil level.
R Add
Add 2.0 qts.
2.0 qts. (Canada:2.0 liters
2.0 liters )to
to
reach maximum oil level.
reach maximum oil level. X
Add oil if necessary.
If the engine is at normal operating
temperature and the Engine oil Reduce
Engine oil Reduce
oil oil level
level display appears, too much oil has
been added.
X Have excess oil siphoned off.
If the Switch on ignition to check
Switch on ignition to check
engine oil level engine oil level message appears:
X Turn the SmartKey to position 2in the
ignition lock (Y page 97).
If the Observe waiting time
Observe waiting time message
appears:
X If the engine is at normal operating
temperature: repeat the measurement
after about five minutes.
X If the engine is not at normal operating
temperature: e.g. if the engine was only
started briefly, repeat the measurement
after approximately 30 minutes.
If the Engine oil level Not when
Engine oil level Not when
engine on engine on message appears:
X Switch off the engine.
X If the engine is at normal operating
temperature: wait about five minutes
before carrying out the measurement.
X If the engine is not at normal operating
temperature: e.g. if the engine was only
started briefly, wait approximately
30 minutes before carrying out the
measurement.
i If you wish to cancel the measurement,
press the *or& button on the
multifunction steering wheel.
Adding engine oil H
Environmental note
When adding oil, take care not to spill any. If
oil enters the soil or waterways, it is harmful
to the environment.
! Only use engine oils and oil filters that
have been approved for vehicles with a
service system. You can obtain a list of the 202
Engine compartmentMaintenance and care