2015 MERCEDES-BENZ GLE SUV coolant

Problem
Possible causes/consequences and
M
MSolutions The coolant temperature
display is showing more
than 120 †. The coolant warning lamp may also
be on and a warning tone
may sound. The coolant level is too low. The coolant is too hot and the engine is no
longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 376). Observe the warning notes
as you do so and top up the coolant if necessary. If the coolant level is correct, the radiator fan may be faulty. The cool-
ant is too hot and the engine is no longer being cooled sufficiently.
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 moun-
tainous terrain and stop-start traffic. DYNAMIC SELECT controller
This section describes the DYNAMIC SELECT
controller for all vehicles except PLUG-
IN HYBRID vehicles. Information on the
DYNAMIC SELECT controller on PLUG-
IN HYBRID vehicles (Y page 267).
Use the DYNAMIC SELECT controller to change
the drive program. Depending on the drive pro-
gram selected, the following vehicle character-
istics will change:
R the drive (engine and transmission manage-
ment)
R the transmission
R the suspension
R the steering
R the availability of the ECO start/stop function
If the ignition is switched off for less than four
hours, the previously selected drive program is
activated when the engine is next started. If the
ignition is switched off for more than four hours,
the Comfort drive program is activated when
the engine is next started. X
All vehicles (except Mercedes-AMG vehi-
cles):
turn DYNAMIC SELECT controller :as
many times as necessary until the desired
drive program is selected.
The selected drive program appears in the
multifunction display. After five seconds the
display goes out.
In addition, the current drive program settings are displayed in the multimedia system dis-
play.
Drive programs available (all vehicles
except Mercedes-AMG vehicles): Individual
Individual settings
Sport
Sporty driving characteris-
tics
Comfort
Comfortable and economi-
cal driving characteristics Slippery
Optimal driving characteris-
tics on slippery or snow-
covered roads 166
DYNAMIC SELECT controllerDriving and parking

The fuel supply is interrupted to protect the
engine when the red band is reached. Outside temperature display
You should pay special attention to road condi-
tions when temperatures are around freezing
point.
Bear in mind that the outside temperature dis-
play indicates the measured air temperature
and not the road surface temperature.
The outside temperature display is in the multi-
function display (Y page 283).
A change in the outside temperature is shown in the multifunction display after a delay. Coolant temperature gauge
G
WARNING
If you open the bonnet while the engine is
overheating or while there is a fire in the
engine compartment, you could come into
contact with hot gases or other leaking ser-
vice products. There is a danger of injury.
Allow an overheating engine to cool down
before opening the bonnet. If there is a fire in the engine compartment, leave the bonnet
closed and notify the fire brigade.
All vehicles except PLUG-IN HYBRID vehicles:
the coolant temperature gauge is in the instru-
ment cluster on the right-hand side (Y page 32).
PLUG-IN HYBRID vehicles: the multifunction dis- play shows the coolant temperature in the
Coolant
Coolant (Ypage 292) submenu.
Under normal operating conditions and with the specified coolant level, the coolant temperature
may rise to 120 †.
At high outside temperatures and when driving
uphill, the coolant temperature may rise to the
end of the scale. Operating the on-board computer
Overview :
Multifunction display
; Right control panel
= Left control panel
X To activate the on-board computer: turn
the key to position 1in 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.
In vehicles with the multimedia system
COMAND Online, you can find further informa-
tion on LINGUATRONIC in the separate operat-
ing instructions.
In vehicles with the multimedia system
Audio 20, you can find further information on
voice-controlled navigation in the separate man-
ufacturer's operating instructions. 282
Displays and operationOn-board computer and displays

Activating/deactivating COLLISION
PREVENTION ASSIST PLUS X
Press the =or; button on the steering
wheel to select the Assist.
Assist. menu.
X Press the 9or: button to select Col‐
Col‐
lision Prevent. Assist
lision Prevent. Assist .
X Press ato confirm.
The current selection appears.
X To activate/deactivate: press theabut-
ton again.
When COLLISION PREVENTION ASSIST PLUS
is deactivated, the æsymbol appears in
the multifunction display in the assistance
graphic display.
Further information about COLLISION PREVEN- TION ASSIST PLUS (Y page 73).
Activating/deactivating ATTENTION
ASSIST X
Press the =or; button on the steering
wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Attention Assist
Attention Assist .
X Press the abutton.
The current selection appears.
X Press ato confirm.
X Press the :or9 button to set Off
Off,
Standard
Standard orSensitive
Sensitive .
X Press the abutton to save the setting.
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction dis-
play in the assistance graphic display.
For further information about ATTENTION
ASSIST, see (Y page 240).
Activating/deactivating Blind Spot
Assist X
Press the =or; button on the steering
wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Blind Spot Assist
Blind Spot Assist .
X Confirm by pressing aon the steering
wheel.
The current selection appears.
X To activate/deactivate: press theabut-
ton again.
Further information about Blind Spot Assist
(Y page 244). For further information about Active Blind Spot
Assist, see (Y
page 247).
Activating/deactivating Lane Keeping
Assist X
Press the =or; button on the steering
wheel to select the Assist. Assist.menu.
X Press the 9or: button to select
Lane Keeping Assist
Lane Keeping Assist .
X Press ato confirm.
The current selection appears.
X Press ato confirm.
X Press the :or9 button to set Off
Off,
Standard
Standard orAdaptive
Adaptive.
When Lane Keeping Assist or Active Lane
Keeping Assist is activated, the multifunction display shows the lane markings as bright
lines in the assistance graphic.
X Press the abutton to save the setting.
Further information about Lane Keeping Assist
(Y page 246).
Further information about Active Lane Keeping
Assist (Y page 250). Service menu
Introduction Depending on the equipment fitted in the vehi-
cle, you have the following options in the
Serv. Serv.
menu:
R Calling up display messages in the message
memory (Y page 300)
R Restarting the tyre pressure loss warning sys-
tem (Y page 410) or checking the tyre pres-
sure electronically (Y page 411)
R Calling up the service due date
(Y page 378)
R Displaying the coolant temperature (PLUG-IN
HYBRID vehicles) (Y page 292) Menus and sub
menus
291On-board computer and displays Z

Displaying the coolant temperature
The
Coolant
Coolant menu is only available on PLUG-IN
HYBRID vehicles.
Observe the notes on coolant temperature
(Y page 282).
X Press the =or; button on the steering
wheel to select the Settings Settingsmenu.
X Press the :or9 button to select the
Serv.
Serv. submenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Coolant
Coolant submenu.
X Press ato confirm your selection.
The coolant temperature is shown in a bar
display. Settings menu
Introduction Depending on the equipment fitted in the vehi-
cle, In the
Settings Settings menu you have the follow-
ing options:
R To change the HYBRID settings (PLUG-IN
HYBRID vehicles) (Y page 292)
R To change the instrument cluster settings
(Y page 293)
R To change the light settings (Y page 293)
R To change the vehicle settings
(Y page 294)
R To change the heating settings
(Y page 295)
R To change the convenience settings
(Y page 296)
R To restore the factory settings (Y page 297)HYBRID submenu (PLUG-IN HYBRID
vehicles) Setting the maximum charge current
Using the Maximum charge current Maximum charge current function,
you can limit the charge current value at which
the high-voltage battery should be charged.
Before charging the high-voltage battery at a
power socket, check the maximum permissible
charge current for the relevant power socket or the building.
Only set the maximum permissible charge cur-
rent using the function if:
R it is not possible to set the charge current on
the charging cable
R the precise maximum permitted charge cur-
rent can only be set via the on-board com-
puter
Before charging the high-voltage battery at a
wallbox or charging station, ensure that the
charging current is not limited by the function. If charging at a wallbox or a charging station,
select the maximum value.
Further information on charging the high-volt-
age battery and setting the charge current
(PLUG-IN HYBRID vehicles) (Y page 183).
X Press the =or; button on the steering
wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Hybrid Hybrid submenu.
X Confirm by pressing aon the steering
wheel.
X Press the :or9 button to select the
Maximum charge current:
Maximum charge current: function.
You will see the selected setting.
X Press the abutton to save the setting.
The maximum charge current values in the on- board computer may deviate from the charg-
ing cable values.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
(Y page 183).
Setting the departure time
You can use the "Set departure time" function to
climatise the vehicle interior before departure.
Further information on pre-entry climate control
(Y page 148).
If you recharge the high-voltage battery, the
function also displays the charging prediction. 292
Menus and submenusOn-boa
rdcompu ter and displays

X
Press the =or; button on the steering
wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Convenience
Convenience submenu.
X Press ato confirm.
X Press the :or9 button to select the
Auto. fold-in mirrors
Auto. fold-in mirrors function.
If the Auto. fold-in mirrors
Auto. fold-in mirrors function is
switched on, the multifunction display shows
the exterior mirror in orange.
X Press the abutton to save the setting. If you have switched on the
Auto. fold-in
Auto. fold-in
mirrors
mirrors function and you fold the exterior mir-
rors in using button :, they will not fold out
automatically (Y page 118).
You can then only fold out the exterior mirrors
using button :.
Resetting to factory settings X
Press the =or; button on the steering
wheel to select the Settings
Settings menu.
X Press the :or9 button to select the
Factory setting Factory setting submenu.
X Press ato confirm.
The Reset all settings?
Reset all settings? message
appears.
X Press the :or9 button to select No
Noor
Yes
Yes.
X Press the abutton to confirm the selec-
tion.
If you have selected Yes Yes, the multifunction
display shows a confirmation message.
For safety reasons, not all functions are reset:
the Limit speed (winter tyres):
Limit speed (winter tyres): function
in permanent SPEEDTRONIC can only be set in
the Vehicle Vehicle submenu. For safety reasons, the
Daytime driving
Daytime driving
lights
lights function in the Lights
Lightssubmenu is only
reset if the engine is switched off. ON&OFFROAD menu
X
Press the =or; button on the steering
wheel to select the ON&OFFROAD
ON&OFFROADmenu.
You can view the current settings of the off-road programs in the ON&OFFROAD
ON&OFFROADmenu.
R Vehicles with the Off-Road Engineering pack-
age (Y page 254)
R Vehicles without the Off-Road Engineering
package (Y page 254) AMG menu (Mercedes-AMG vehicles)
WARMUP :
Digital speedometer
; Gear indicator
= Upshift indicator
? Engine oil temperature
A Coolant temperature
B Transmission oil temperature
X Press the =or; button on the steering
wheel to select the AMG AMGmenu.
Upshift indicator: upshift indicatorUp Up=
indicates that the engine has reached the
overrevving range when in the manual drive
program.
Engine/transmission oil temperature:
when the engine and transmission are at nor-
mal operating temperature, oil tempera- Menus and submenus
297On-board computer and displays Z

Engine
Display messages
Possible causes/consequences and
M
MSolutions +
Top up coolant See Top up coolant See
Owner's Manual Owner's Manual The coolant level is too low.
! Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
X Top up the coolant, observing the warning notes before doing so
(Y page 376).
If you have to top up the coolant frequently: X Contact a qualified specialist workshop and have the engine cooling
system checked. ? The fan motor is faulty.
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 moun-
tainous terrain and stop-start traffic. ?
Coolant Stop vehi‐ Coolant Stop vehi‐
cle Switch engine cle Switch engine
off off The coolant is too hot.
A warning tone also sounds.
G WARNING
Never drive with an overheated engine. Driving when your engine is
overheated can cause some fluids which 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 a risk of injury.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 191).
X Wait 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 display.
If the temperature increases again:
X Consult a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 120 †. 316
Display messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions #
See Owner's Manual See Owner's Manual The battery is not being charged.
A warning tone also sounds.
Possible causes:
R faulty alternator
R defective power electronics (PLUG-IN HYBRID vehicles)
R torn poly-V-belt
R a malfunction in the electronics
! Do not continue driving. The engine could otherwise overheat.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 191).
X Consult a qualified specialist workshop. #
Stop vehicle See Stop vehicle See
Owner's Manual Owner's Manual The battery is no longer being charged and the battery charge level is
too low.
A warning tone also sounds.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 191).
X Observe the instructions in the #See SeeOwner's
Owner's Manual
Manualdisplay
message.
X Consult a qualified specialist workshop. 4
Check Check
eng.
eng.oil
oillev.
lev.
when
when next
nextrefuelling
refuelling The engine oil level has dropped to the minimum level.
A warning tone also sounds.
! Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
X Check the oil level when next refuelling, at the latest (Y page 375).
X If necessary, top up the engine oil (Y page 375).
If you have to top up the engine oil frequently:
X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes-
benz.co m. Display
messages
317On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions 4
Add 1 litre engine Add 1 litre engine
oil when next refu‐ oil when next refu‐
elling elling Mercedes-AMG vehicles: the engine oil level is too low.
! Avoid long journeys when there is too little coolant in the cooling
system. Otherwise the engine will be damaged.
X Check the oil level when next refuelling, at the latest (Y page 375).
X If necessary, top up the engine oil (Y page 375).
If you have to top up the engine oil frequently:
X Contact a qualified specialist workshop and have the engine
checked.
Information on approved engine oils can be obtained from any quali-
fied specialist workshop or on the Internet at http://bevo.mercedes-
benz.co m. 4
Engine oil level Engine oil level
Stop Stop
vehicle
vehicle Switch
Switch
engine off
engine off Mercedes-AMG vehicles: the engine oil level is too low.
There is a risk of engine damage.
X Stop the vehicle immediately, paying attention to road and traffic
conditions, and switch off the engine.
X Safeguard the vehicle against rolling away (Y page 191).
X Check the engine oil level (Y page 375).
X If necessary, top up the engine oil (Y page 375).8
Reserve fuel level Reserve fuel level 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. C There is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.
X Refuel at the nearest filling station without fail. ¸
Replace Replace
air
air cleaner
cleaner
element
element Vehicles with a diesel engine: the engine air filter is dirty and must be
replaced.
X Consult a qualified specialist workshop. !
Clean the fuel fil‐ Clean the fuel fil‐
ter ter Vehicles with a diesel engine: there is water in the fuel filter. The water
must be drained off.
X Consult a qualified specialist workshop. Ø
Refill AdBlue See Refill AdBlue See
Owner's Manual Owner's Manual The AdBlue
®
level has fallen below the reserve range. A warning tone
also sounds.
X Have AdBlue ®
refilled as soon as possible at a qualified specialist
workshop.
or X Add at least 3.8 lof AdBlue ®
immediately (Y page 180).318
Display messagesOn-board computer and displays