2016 MERCEDES-BENZ G-CLASS SUV air condition

Display messages
Possible causes/consequence
sand M
MSolutions J
Check brake fluid Check brake fluid
level level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the Jwarning lamp in the instrument cluster lights up
and awarning tones ounds.
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 Consult aqualified specialist workshop.
X Do not top up the brake fluid. This does not correc tthe fault. #
Check Check
brake
brakepad
padwear
wear The brake pads/linings have reached their wear limit.
X Consult aqualified specialist workshop. 6
Restraint sys. mal‐ Restraint sys. mal‐
function Consult function Consult
workshop workshop The restraint system is malfunctioning. The
6warning lamp also
lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident ,may not be triggered.
This poses an increased risk of injury.
X Consult aqualified specialist workshop.
Further information about the restraint system (Y page 31).6
Front left malfunc‐ Front left malfunc‐
tion Consult work‐ tion Consult work‐
shop shoporFront right
Front right
malfunction
malfunction Consult
Consult
workshop
workshop The restraint system has malfunctioned at the front on the left or right.
The 6 warning lamp also lights up in the instrument cluster.
G WARNING
The airbags or belt tensioners may either be triggered unintentionally or, in the event of an accident ,may not be triggered.
This poses an increased risk of injury.
X Consult aqualified specialist workshop. 144
Display messagesOn-board computer and displays

Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolan
tSee
Top up coolant See
Owner's Manual Owner's Manual The coolant level is too low.
X Top up the coolant, observing the warning notes before doing so
(Y page 215).
X Have the coolant system checked at aqualified specialist workshop
if the coolant needs topping up more often than usual. ? The fan motor is faulty.
X If the coolant temperature is below 120 †, drive on to the nearest
qualified specialist workshop.
X Avoid putting the engine under heavy loads as you do so, e.g. driving
in mountainous terrain and stop-start traffic. ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
Aw
arning tonea lso sounds.
G WARNING
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 catchf ire.
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 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 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 display message goes out and
the coolant temperature is below 120 †. The engine may otherwisebe damaged.
X Pay attention to the coolant temperature gauge.
X If the temperature increases again, consult aqualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. 146
Display messagesOn-board computer and displays

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

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

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

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

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

Bluetooth
®
settings
Requirements for aBluetooth ®
connec-
tion Yo
uc an connec tBluetooth ®
-compatible mobile
phones and other audio equipmen ttothe mul-
timedia system.
To do so, the followin gcondition smust be met:
R mobile phones must support Hands Fre ePro-
file 1. 0ora bove
R the Bluetooth ®
devic emust be located inside
the vehicle in the vicinity of the multimedia
system
R every Bluetooth ®
devic emust have its own
Bluetooth ®
name, which you can assign your-
self
R Bluetooth ®
must be activate donboth the
multimedia syste mand on the respective
Bluetooth ®
device
R the Bluetooth ®
devic emust be visible for the
multimedia system
R the Bluetooth ®
devic emust support the audio
profile A2DP
i You can obtain further information about
suitable mobile phones:
R at aq ualified specialis tworkshop
R on the Internet at http://www.mercedes-
benz.com/connect
Activating or deactivating th eBlue-
tooth ®
function Switchin
gonthe Bluetooth ®
function on the
multimedi asystem is arequirement for:
R telephony with aBluetooth ®
-capable mobile
phone
R audi oplaybac kwithaB luetooth ®
-capable
mobil edevice
X Press the PHON Ebutton.
X Select O.
Am enu appears.
X Select Bluetooth
Bluetooth.
The #dot indicates that the function is
switched on. Searching for and pairin
gwithaBlue-
tooth ®
device When using your Bluetooth
®
device with the
multimedia system for the first time, you must
search for the Bluetooth ®
device and then pair
it.
Depending on the Bluetooth ®
device used, a
pairing code has to be entered into the Blue-
tooth ®
device or aprompt confirmed on the
Bluetooth ®
device.
There are two options for the search:
R on the Bluetooth ®
device, search for the mul-
timedia system
R on the multimedia system, search for the
Bluetooth ®
device
i Searchin
gonthe Bluetooth ®
device for the
multimedia system is, in most cases, easier.
Starting the search on the Bluetooth ®
device
X Press the PHONE button.
Al ist appears with Bluetooth ®
devices that
have already been paired.
X Start asearch for other Bluetooth ®
devices on
the Bluetooth ®
device (see the manufactur-
er's operating instructions).
i The Bluetooth ®
name "MB Bluetooth" has
been set as the default for the multimedia
system.
X Select the multimedia system on the Blue-
tooth ®
device.
Starting the search on the multimedia system X Press the PHONE button.
Al ist appears with Bluetooth ®
devices that
have already been paired.
X Select Add new device Add new device.
Am essage appears. The multimedia system
searches for available Bluetooth ®
devices.
If Bluetooth ®
devices are available, these
appear in alist. If no Bluetooth ®
devices are
available, amessage appears that no Blue-
tooth ®
device has been found. 174
System settingsMultimedia system