ECU MERCEDES-BENZ G-CLASS SUV 2016 Service Manual
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2016, Model line: G-CLASS SUV, Model: MERCEDES-BENZ G-CLASS SUV 2016Pages: 261, PDF Size: 6.01 MB
Page 154 of 261
Display messages
Possible causes/consequence
sand M
MSolutions Check tyres
Check tyres The tyre pressure in one or more tyres has dropped significantly. The
wheel position is shown in the multifunction display.
Aw arning tonea lso sounds.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steerin gand braking, may be
greatly impaired
There is arisk of an accident.
X Stop the vehicle without making any sudden steerin gorbraking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 113).
X If there is aflat tyre, inspect the tyres (Y page 224).
X Check the tyre pressure (Y page 239).
X If necessary, correc tthe tyre pressure. Warning tyre defect Warning tyre defect The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is shown in the multifunction display.
Aw
arning tonea lso sounds.
G WARNING
If you drive with aflat tyre, there is arisk of the following hazards:
R af lat tyre impairs the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with aflat tyre will cause excessiv eheat build-up
and possibly afire
There is arisk of an accident.
X Stop the vehicle without making any sudden steerin gorbraking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 113).
X If there is aflat tyre, inspect the tyres (Y page 224).Rectify tyre pres‐ Rectify tyre pres‐
sure sure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure differenc ebetween the wheels is too great.
X Check the tyre pressures at the next opportunit y(Ypage 239).
X If necessary, correc tthe tyre pressure.
X Restart the tyre pressure monitor (Y page 241).Wheel sensor(s)
Wheel sensor(s)
missing missing There is no signal from the tyre pressure sensor of one or several tyres.
The pressure of the affected tyre does not appear in the multifunction
display.
X Have the faulty tyre pressure sensor replaced at aqualified spe-
cialist workshop. Display me
ssages
151On-board compute rand displays Z
Page 155 of 261
Display messages
Possible causes/consequence
sand M
MSolutions Tyre
Tyre
press.
press. monitor
monitor
currently unavaila‐
currently unavaila‐
ble ble No signals can be received from the tyre pressure sensors due to
strong RF interference. The tyre pressure monitor is temporarily mal-
functioning.
X Drive on.
The tyre pressure monitor restarts automatically as soon as the
cause has been rectified. h
Tyre pressure Cau‐ Tyre pressure Cau‐
tion, tyre malfunc‐ tion, tyre malfunc‐
tion tion The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is shown on the multifunction display.
Aw
arning tonea lso sounds.
G WARNING
If you drive with aflat tyre, there is arisk of the following hazards:
R af lat tyre impairs the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with aflat tyre will cause excessiv eheat build-up
and possibly afire
There is arisk of an accident.
X Stop the vehicle without making any sudden steerin gorbraking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 113).
X If there is aflat tyre, inspect the tyres (Y page 224).h
Tyre Tyre
pressure
pressure Check
Check
tyre(s)
tyre(s) The tyre pressure in one or more tyres has dropped significantly. The
wheel position is shown on the multifunction display.
Aw arning tonea lso sounds.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steerin gand braking, may be
greatly impaired
There is arisk of an accident.
X Stop the vehicle without making any sudden steerin gorbraking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 113).
X If there is aflat tyre, inspect the tyres (Y page 224).
X Check the tyre pressure (Y page 239).
X If necessary, correc tthe tyre pressure. h
Rectify tyre pres‐ Rectify tyre pres‐
sure sure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure differenc ebetween the wheels is too great.
X Check the tyre pressures at the next opportunit y(Ypage 239).
X If necessary, correc tthe tyre pressure. 152
Display messagesOn-board computer and displays
Page 156 of 261
Vehicle
Display messages
Possible causes/consequence
sand M
MSolutions To start the
To start the
engine, shift to engine, shift to
either
PorN
either PorN You have attempted to star
tthe engin ewith the transmission in posi-
tion Ror D.
X Shif tthe transmission to position Por N. Auxiliar
ybattery
Auxiliary battery
malfunction malfunction The auxiliary battery for the automatic transmission is no longer being
charged.
X Consult aqualified specialist workshop at the next opportunity.
X Until then,s et the automatic transmission to position Pbefore you
switch off the engine.
X Before leaving the vehicle, apply the parking brake. Apply
Apply
brake
braketo
todese‐
dese‐
lect Park (P) posi‐
lect Park (P) posi‐
tion tion You have attempted to move the transmission selector lever to posi-
tion
D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. Apply brake to Apply brake to
select R select R You have attempted to shift from position
Dto position Rwithout
applyingt he brake.
X Depress the brak epedal.
X Shif tthe transmission to position R.A The rear door is open.
G WARNING
When the engine is running, exhaust gases can enter the vehicle inte- rior if the tailgat eisopen.
There is arisk of poisoning.
X Close the rear door. ? The bonnet is open.
Aw
arning tonea lso sounds.
G WARNING
The open bonnet may then block your view when the vehicle is in
motion.
There is arisk of an accident.
X Stop the vehicle safely as soon as possible, paying attention to road
and traffic conditions.
X Secure the vehicle against rolling away (Y page 113).
X Close the bonnet. C At least one door is open.
Aw
arning tone also sounds.
X Close al ldoo rs. Display messages
153On-board computer an ddisplays Z
Page 159 of 261
Warning/
indicator
lamp
N N
Signa ltype
Possible causes/consequences and M
MSolutions ü
N
The red seat belt warning lamp lights up after the engine starts, as soon as the
driver's or the front-passenger door is closed.
The driver or passenger has not fastened their seat belt.
X Fasten your seat belt (Y page 34).
The warning lamp goes out.
There are objectsont he front-passenger seat.
X Remove the object sfrom the front-passenger seat and stow them in asecure
place.
The warning lamp goes out. ü
N
The red seat belt warning lamp flashes and an intermittent audibl ewarning
sounds.
The driver or passenger has not fastened their seat belt. At the same time, you are
driving faster than 25 km/ho rhave briefly driven faster than 25 km/h.
X Fasten your seat belt (Y page 34).
The warning lamp goes out and the intermittentw arning tone ceases.
There are object sonthe front-passenger seat. At the same time, you are driving
faster than 25 km/ho rhave briefly driven faster than 25 km/h.
X Remove th eobjects from th efront-pa ssenger seat and stow them in asecure
place.
The warning lamp goes out and th eintermittent warning tone ceases. 156
Warning and indicator lamps on th
einstrument clusterOn-boar dcomputer and displays
Page 160 of 261
Safety systems
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions J
N
The red brake system warning lamp is lit while the engine is running.
Aw arning tonea lso sounds.
G WARNING
The brake system is malfunctioning and the braking characteristics may be affec- ted.
There is arisk of an accident.
X If the multifunction display shows adisplay message, please observe this.
X Drive on carefully.
X Consult aqualified specialist workshop. J
N
The yellow brake system warning lamp is lit while the engine is running.
Aw arning tonea lso sounds.
G WARNING
The brake boosting effect is malfunctioning and the braking characteristics may be
affected.
There is arisk of an accident.
X Stop the vehicle safely as soon as possible, paying attention to road and traffic
conditions. Do not continue driving.
X Secure the vehicle against rolling away (Y page 113).
X Consult aqualified specialist workshop.
X Observe the additional display messages on the multifunction display. J
N
The yellow brake system warning lamp is lit while the engine is running.
Aw arning tonea lso sounds.
There is an insufficien tamount of brake fluid in the fluid reservoir.
G WARNING
Brakin gefficienc ymay be impaired.
There is arisk of an accident.
X Stop the vehicle safely as soon as possible, paying attention to road and traffic
conditions. Do not continue driving.
X Secure the vehicle against rolling away (Y page 113).
X Do not top up the brake fluid. Topping up will not correc tthe fault.
X Consult aqualified specialist workshop.
X Observe the additional display messages on the multifunction display. J
N
The red brake system warning lamp is lit while the vehicle is in motion.
You are driving with the parking brake applied.
X Release the parking brake.
The warning lamp goes out and the warning tonec eases.Warning and indicato
rlamps on the instrument cluster
157On-boardcomputer and displays Z
Page 165 of 261
Engine
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ;
N
The yellow engine diagnostics warning lamp lights up whil ethe engine is run-
ning.
There may be afault with the following, for example:
R engine management
R fuel injection system
R exhaust system
R fuel system
The emission limit values may be exceeded and the engine may be runnin gin
emergenc ymode.
X Consult aqualified specialist workshop immediately.
Vehicles with adiesel engine: the fuel tank has been run dry (Y page 110).
X Start the engine three to four times after refuelling.
If the yellow engine diagnostics warning lamp goes out, emergenc ymode is
cancelled. The vehicle does not have to be checked. 8
N
The yellow reserve fuel warning lamp lights up while the engine is running.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level drops into the
reserve range.
X Refuel at the nearest filling station. %
N
On diesel engine vehicles, the preglow indicator lamp does not light up when the
key is in position 2(Y page 96).
The preglow system is malfunctioning.
X Consult aqualified specialist workshop immediately. ?
N
The red coolant warning lamp lights up while the engine is running and the
coolant temperature display is at the start of the scale.
The temperature sensor for the coolant temperature gauge is malfunctioning.
The coolant temperature is no longer being monitored. The engine could be dam-
aged if the coolant temperature is too high.
X Stop the vehicle immediately,p aying attention to road and traffic conditions,
and switch off the engine. Do not continue driving.
X Secure the vehicle against rolling away (Y page 113).
X Consult aqualified specialist workshop. 162
Warning and indicator lamps on the instrument clusterOn-board computer and displays
Page 166 of 261
Warning/
indicator
lamp
N N
Signa ltype
Possible causes/consequences and M
MSolutions ?
N
The red coolant warning lamp lights up while the engine is running.
The coolant level is too low.
If the coolant level is correct, the airflow to the engine radiator may be blocked or the electric engine radiator fan may be malfunctioning.
The coolant is too hot and the engine is not being cooled sufficiently.
X Observe the additional display messages on the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Secure the vehicle against rolling away (Y page 113).
X Leave the vehicle and keep asafe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, making sure to observe the
warning notes (Y page 215).
X If you have to top up the coolant frequently, have the engine cooling system
checked.
X Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X Do not start the engine again until the coolant temperature is below 120 †. The
engine may otherwise be damaged.
X Drive to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. ?
N
The red coolant warning lamp lights up while the engine is running.
The coolant temperature has exceeded 120 †. The airflow to the engine radiator may be blocked or the coolant level may be too low.
G WARNING
The engine is not being cooled sufficiently and may be damaged.
Never drive with an overheated engine. Drivin gwhen your engine has overheated
can cause any fluids that may have leaked into the engine compartment to catch fire.
In addition, steam from an overheated engine can cause serious burns, which can
occur just by opening the bonnet.
There is arisk of injury.
X Observe the additional display messages on the multifunction display.
X Stop the vehicle immediately, paying attention to road and traffic conditions,
and switch off the engine.
X Secure the vehicle against rolling away (Y page 113).
X Leave the vehicle and keep asafe distance from the vehicle until the engine has
cooled down.
X Check the coolant level and top up the coolant, making sure to observe the
warning notes (Y page 215).
X If you have to top up the coolant frequently, have the engine cooling system
checked. Warning and indicato
rlamps on the instrument cluster
163On-boardcomputer and displays Z
Page 167 of 261
Warning/
indicator
lamp
N N
Signa ltype
Possible causes/consequences and M
MSolutions X
Make sure that the air supply to the engine radiator is not blocked, e.g. by frozen
slush.
X If the coolant temperature is below 120 †, you can continue driving to the
nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in mountainous terrain
and stop-start traffic. Tyres
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction) is
lit.
The tyre pressure monitor has detected aloss of pressure in at least one of the
tyres.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed increase
R the tyres may wear excessively and/or unevenly, which may greatly impair tyre
traction
R the driving characteristics, as well as steerin gand braking, may be greatly
impaired
There is arisk of an accident.
X Stop the vehicle without making any sudden steerin gorbraking manoeuvres.
Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 113).
X Observe the additional display messages on the multifunction display.
X Check the tyres and, if necessary, follow the instructions for aflat tyre
(Y page 224).
X Check the tyre pressure (Y page 239).
X If necessary, correc tthe tyre pressure. h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tyre pressure monitor is faulty.
G WARNING
The system is possibly unable to detect or register low tyre pressure.
There is arisk of an accident.
X Observe the additional display messages on the multifunction display.
X Consult aqualified specialist workshop immediately. 164
Warning and indicator lamps on the instrument clusterOn-board computer and displays
Page 175 of 261
Setting the date
X
Select ¯.
X Select Date/Time
Date/Time.
X Select the date.
An input men uappears.
X Set the date using the arrows.
Setting the time X
Select ¯.
X Select Date/Time
Date/Time.
X Select the time.
An input menu appears.
X Set the time using the arrows. Synchronisin
gthe time
The following functions are available:
R RDS RDS:ift his function is activated, the time will
be regularly compared with the RDS 5
time
signal and adjusted if necessary
R GPS
GPS:ift his function is activated, the time will
be regularly compared with the GPS 6
time
signal and adjusted if necessary
R Manually
Manually:ift his function is activated, the
time set manually is maintained
X Select ¯.
X Select Time synchronizing
Time synchronizing.
X Select the desired setting.
The #dot indicates the current setting. Adjusting the standby time
If this function is activated, the mul timedia sys-
te mr emain sinstandby mod efor th eset time
after th eignition has been switched off .Ifthe
ignition is switched on again during this set time,
th en avigation system, for example, is available
again immediately.
X Select ¯.
X Select Standby
Standby.
X Selec tthe desired setting, 5minutes
5m inutes, 15 15
minutes
minutes, 30 minutes
30 minutes orOff
Off .
The #dot indicates the curren tsetting. Switching the button tone on/off
X Select ¯.
X Select Key tone
Key tone.
X The #dot indicates that the function is acti-
vated. Switching the AM waveband on/off
In order to select the AM waveband in radio
operation, the AM-Tuner AM-Tunermust be activated in
the system settings.
X To switch the AM waveband on/off: select
¯.
X Select AM-Tuner
AM-Tuner.
The #dot indicates that the function is acti-
vated. Display settings
The mul timedia system includes an optimised
display design fo rday and night mode.
X Select ¯.
X Select Day/night mode
Day/night mode.
X Selec tthe desire dsetting.
The #dot indicates th ecurren tsetting.
Wit hthe Auto
Auto setting ,the display design is
automatically adapted to th ebrightness of
th ea mbien tlight.
Afte rselecting Custom
Custom,aday mode bright-
ness scale appears.
X Se tthe desire dbrightness usin gthe arrows.
X Selec tSave ý.
An ight mode brightness scale appears.
X Se tthe desire dbrightness usin gthe arrows.
X Selec tSave ý. Control settings
The function of th econtrol knob in navigation
mod ecan be set in amultimedia system with
navigation.
The control knob can be set so that turning:
R zooms in or out of th emap
R jumps to th enextorp revious statio nortrack
5 Radio Dat aSystem.
6 Global Positionin gSystem. 172
System settingsMultimedia system
Page 201 of 261
Loading guidelines
G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, the ycoulds lip,tip
over or be flung around and thereby hit vehicle
occupants. There is arisk of injury ,especially
when braking or abruptly changing directions.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
If you loadt he vehicleunevenly, driving char-
acteristics such as steering and braking
behaviou rmay be severely impaired .There is
ar isk of an accident.
Load the vehicl eevenly .Secure the loadso
that it cannot slip. G
WARNING
The exhaust tail pipea nd tail pipetrim can
become very hot. If you come into contact
with these parts of the vehicle, you coul dburn
yourself. There is arisk of injury.
Always be particularl ycarefu laround the
exhaust tail pipea nd the tail pipetrim. Allow
these components to cool downb efore touch-
ing them. G
WARNING
Combustio nengines emit poisonous exhaust
gase ssuch as carbon monoxide .Ifthe rear
door is open when the engine is running, par- ticularly if the vehicl eismoving, exhaust
fumes coul denter the passenger compart-
ment. There is arisk of poisoning.
Turn off the engine before opening the rear
door. Never drive with the rear door open. Driving, braking and steering characteris
tics
change depending on:
R typ eofl oad
R weight
R the centre of gravity of the load
Yo us houl dtherefore load your vehicl easshown
in the illustrations.
Observe the following note swhent ransporting
al oad:
R neve rexceed the maximum permissibl egross
vehicl eweigh tort he permissibl eaxlel oads
for the vehicl e(including occupants).
R positio nheavy loadsasf arforwards as pos-
sibl eand as lo wdownint he luggage com-
partment as possible.
R the load must not protrude above the upper
edge of the sea tbackrests.
R always place the load against the backrests of
the front seats or rea rseats.
R always place the load behind unoccupied
seats if possible.
R if possible, always transport the load in the
load compartment with the sea tbackrests
folde dupa nd engaged.
R uset he lashing eyelets and the luggage nets
to transport load sand luggage.
R onl yuselashing eyelets and fastening com-
ponents tha tare suitabl efor the weight and
size of the load. 198
Loadin
gguidelinesStowing and features