check engine MERCEDES-BENZ GLE SUV HYBRID 2017 W166 Owner's Manual

A
AccidentAutomat icmeasures after an acc i-
dent ................................................ .10
Activating/deactivating cooling
with air dehumidification ...................17
Air-conditioning system
see Climat e control
Authorized Mercedes-Benz Center
see Qualified specialist workshop
B
Battery (high-voltage)see High-voltage battery
Battery (vehicle)
Display message .............................. 47
Im portant safety notes .................... 52
Jump starting .................................. .53
Brake pedal
Pedal resistance/pedal travel .......... 11
Brakes
RBS warning lamp ............................ 49
Recuperative Brake System ............. 11
Warning lamp ................................... 48
Breakdown
see Towing away
C
Chargingsee Charging the high-voltage bat-
tery (important safety notes)
Charging cable
Connecting ...................................... 33
Controls ........................................... 32
Important safety notes .................... 31
Indicator lamp .................................. 33
Removing ......................................... 34
Storing ............................................. 31
Warming up ..................................... 31
Charging the high-voltage battery
(important safety notes) ..................... 29
Climate control
Automatic climate control (3-
zone) ................................................ 15
Cooling with air dehumidification ..... 17 Dual-zone automatic climate con-
trol ................................................... 13
General notes .................................. 13
Immediate pre-entry climate con-
trol ................................................... 19
Overview of systems ........................ 13
Pre-entry climate control at
departure time ................................. 18
Pre-entry climate control via key ..... 17
Rear control panel ........................... 15
Refrigerant filling capacity ............... 54
Switching residual heat on/off ........ 17
COMAND
Menu overview ................................. 50
Consumption statistics (on-board
computer) ............................................ 43
Coolant (engine)
Checking the level ........................... 51
Displaying the temperature (on-
board computer) .............................. 43
Filling capacity ................................. 54
Temperature gauge .......................... 39
Cooling
see Climate control
D
Datasee Technical data
Display
Condition of charge ......................... 40
see Display messages
Display message
Hybrid drive system ......................... 45
Display messages
Engine .............................................. 47
Vehicle ............................................. 48
Driving safety systems
Recuperative Brake System ............. 11
DYNAMIC SELECT controller
PLUG-IN HYBRID operation .............. 22
E
ECO start/stop function PLUG-IN HYBRID operation .............. 23
Emergency
Automatic measures after an acci-
dent ................................................. 10
Index3

Protecting the environment
HEnvironmental note
Have a defective high-voltage battery dis-
posed of in an environmentally-responsible
manner. Contact a qualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
Operator's Manual
Vehicle equipment
This Supplement provides information on all the
important functions of your hybrid vehicle that
are either not described or differ from the
descriptions in the vehicle's Operator's Manual. The information supplements or substitutes the
corresponding sections in the vehicle's Opera-
tor's Manual. Under no circumstances does the
supplement replace the Operator's Manual.
This Supplement describes all models, and
standard and optional equipment for your sys-
tem, as available at the time of going to print.
Country-specific differences are possible. Bear
in mind that your vehicle may not feature all
functions described here. This also applies to
safety-relevant systems and functions. The
equipment in your vehicle may therefore differ
from that shown in the descriptions and illus-
trations.
The original purchase contract documentation
for your vehicle contains a list of all the systems
in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-
let are important documents and should be kept
in the vehicle.
Operating safety
Important safety notes
Hybrid vehicles have a combustion engine and
an electric motor. The voltage supply for oper- ating the vehicle electrically is provided by the
vehicle's high-voltage electrical system on the
hybrid drive system.
GDANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-
voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
All components of the hybrid drive system are
marked with yellow warning stickers that warn
you of the danger of high voltage. The cables of
the vehicle's high-voltage electrical system are
orange in color.
Always have all work on the hybrid drive system
carried out at a qualified specialist workshop.
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop.
Vehicles with an electric motor generate much
less driving noise than vehicles with internal
combustion engines. As a result, your vehicle
may not be heard by other road users in certain
situations. This can happen, for example, when
you are parking and your vehicle is not seen by
other road users. This requires you to adopt a
particularly anticipatory driving style, as it is
necessary to allow for the possibility that other
road users may behave erratically.
Introduction7
Z

Hybrid drive system
General notes
Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor.
Important safety notes
Danger of electric shock
GDANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-
voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
When towing a vehicle after an accident, be sure
to observe the following sections in the vehicle
Operator's Manual:
RTransporting the vehicle
RTowing the vehicle with the rear axle raised
RTowing a vehicle with both axles on the
ground
Read the safety instructions on towing and tow-
starting (
Ypage 53).
All components of the hybrid drive system are
marked with yellow warning stickers that warn
you of the danger of high voltage. The cables of
the vehicle's high-voltage electrical system are
orange in color.
The ignition must be switched off when carrying
out general tasks, such as changing bulbs or
checking the coolant level.
Automatic switching off of the hybrid
drive system
If components of the restraint system are acti-
vated during an accident, the hybrid drive sys-
tem is automatically deactivated.
The hybrid drive system is not activated when
the vehicle is started if:
Ran electrical short circuit is detected in the
hybrid drive system
Ran electrical connection in the hybrid drive
system is disconnected
This ensures that you do not come into contact
with high voltage.
Manual switching off of the hybrid drive
system
The hybrid drive system can be deactivated
manually using the high voltage switch-off
device.
!To prevent damage to the hybrid drive sys-
tem please observe the following instruc-
tions:
Ronly deactivate the hybrid drive system
manually in the following situations.
Rwork on the hybrid drive system may only
be carried out at a qualified specialist work-
shop, even when it has been deactivated
manually.
Deactivate the hybrid system manually if:
Rthe 6 restraint system warning lamp in the
instrument cluster lights up after an accident
Rthe vehicle is badly damaged, e.g. after an
accident, and the restraint system compo-
nents were not activated
Rthe vehicle is badly damaged and has to be
towed or transported
10Hybrid drive system
Safety

XIf possible, move the vehicle out of the
danger zone:shift the automatic transmis-
sion into position N.
XRelease the electric parking brake.
XRoll the vehicle to a safe place and park it
safely.
Get assistance from others if necessary.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing. There is therefore a risk of being locked out
if the vehicle is being pushed or tested on a
dynamometer.
XSwitch the ignition off.
XShift the automatic transmission to park posi-
tion P.
Apply the electric parking brake.
Safeguard the vehicle against rolling away
(see the vehicle Operator's Manual).
XTo use the high-voltage switch-off device:
open the tailgate.
XLift the cargo compartment floor upwards
(see the vehicle Operator's Manual).
XPull off the right-hand paneling in the cargo
compartment.
XPress release clip :in the direction of the
arrow and pull it out.
XPull high-voltage switch-off device ;apart
until it engages.
If the hybrid drive system has been deactivated
due to reasons mentioned above, have it
checked at a qualified specialist workshop
before reactivation.
High-voltage battery
GWARNING
In the event of a vehicle fire, the internal pres- sure of the high-voltage battery can exceed a
critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk
of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements.
GWARNING
If the housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. These are poisonous and caustic.
There is a risk of injury.
Avoid contact with skin, eyes or clothing.
Immediately rinse electrolyte splashes off
with water and seek medical attention
straight away.
!Exhaustive discharge caused by the vehicle
standing idle for lengthy periods can damage
the high-voltage battery. If the vehicle is idle
for lengthy periods leave the high-voltage bat-
tery connected to a charging station.
Charging the high-voltage battery (
Ypage 29).
Engine compartment
Before opening the hood:
XApply the electric parking brake.
XShift the transmission to position P.
XSwitch the ignition off.
XObserve the warning notes on the risk of elec-
tric shock (Ypage 10).
XObserve the warning notes on the hood (see
the vehicle Operator's Manual).
RBS driving safety system (Recupera-
tive Brake System)
The Recuperative Brake System supports you
when braking with an electronically-controlled
brake boost mode and enables the recovery of
kinetic energy (recuperation).
Further information about the Recuperative
Braking System (
Ypage 20).
Hybrid drive system11
Safety
Z

Occupant safety
Restraint system warning lamp
If the restraint system is disrupted, the high-
voltage on-board electrical system may not be
switched off in the event of an accident as inten-
ded.
GDANGER
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for example the Emergency Tensioning
Device or the air bag. Furthermore, in the
event of an accident, the vehicle's high-volt-
age electrical system may not be deactivated as intended. You may be electrocuted if you
touch the damaged components of the vehi-
cle's high-voltage electrical system. This
poses an increased risk of injury or even fatal
injury.
Have the restraint system checked and
repaired in a qualified specialist workshop assoon as possible. After an accident, switch off
the ignition immediately and remove the key
from the ignition lock.
A malfunction has occurred if the 6restraint
system warning lamp:
Rdoes not light up after the ignition is switched
on
Rdoes not go out after a few seconds while the
combustion engine or hybrid system is run-
ning
Rlights up again while the combustion engine
or hybrid system is running
12Occupant safety
Safety

iFrom a speed of 1 mph (2 km/h), the fuel
filler flap can no longer be opened.
iThe unlocking process for the fuel filler cap
may take up to 15 minutes.
:To open the fuel filler flap
;To insert the fuel filler cap
=Instruction label for fuel type to be refueled
?Tire pressure table
XPress the fuel filler flap in the direction of
arrow :.
The fuel filler flap swings up.
XTurn the fuel filler cap counterclockwise and
remove it.
XInsert the fuel filler cap into the holder on the
inside of the fuel filler flap.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place and
refuel.
XOnly fill the tank until the pump nozzle
switches off.
Do not add any more fuel after the pump stops filling for the first time. Otherwise, fuel may
leak out.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
Close the fuel filler flap before locking the vehi-
cle.
If you drive at speeds above 1 mph (2 km/h)
with the fuel filler flap open, the Fuel Filler
Flap Openmessage is shown in the multifunc-
tion display.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. A mes-
sage appears on the multifunction display.
In addition, the ;Check Engine warning
lamp may light up.
Information on indicator and warning lamps in
the instrument cluster (see the vehicle Opera-
tor's Manual).
Problems with the fuel tank
ProblemPossible causes/consequences and MSolutions
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (see the vehicle Operator's Manual).
XDepressurize the fuel tank (Ypage 27).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (see the vehicle Oper-
ator's Manual).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult a qualified specialist workshop.
28Refueling
Driving and parking

RNever touch damaged components or the
damaged orange cables of the high-voltage
electrical system.
RDo not remove the covers of the high-voltage
electrical system components that are
marked with a warning sticker.
General notes
Method of operation
The vehicle is equipped with a high-voltage bat-
tery for driving. The high-voltage battery stores
the energy needed to operate the electric motor
and releases it again.
The electric motor uses energy that has been
stored in the high-voltage battery when pulling
away, accelerating and during the journey.
In overrun mode, kinetic energy is converted by
means of energy recuperation into electrical
energy and stored in the high-voltage battery.
Information on overrun mode (
Ypage 24).
The high-voltage battery can be charged as fol-
lows:
Rthrough energy recuperation while the vehicle is in motion
Rthrough the combustion engine while driving
in CHARGE operating mode (Ypage 21)
Rwith the relevant charging cable at an electri-
cal outlet while the vehicle is stationary
Rat a wallbox while the vehicle is stationary
Rat a charging station while the vehicle is sta-
tionary
The high-voltage battery can be charged in a
nominal voltage range from 100 V to 240 V.
You can view the condition of charge of the high-
voltage battery in the multifunction display.
Information about this can be found under
"Energy flow display" (
Ypage 40).
High and low outside temperatures
Low outside temperatures
At very low outside temperatures the maximum
power output of the high-voltage battery may be
reduced. The high-voltage battery is then no
longer able to provide the normal electrical
power output.
High outside temperatures
To prevent damage to the high-voltage battery
due to very high outside temperatures, the max- imum power output of the high-voltage battery
is reduced by the vehicle.
Energy consumption and electrical
range
The maximum electrical range is generally
reduced by:
Rhigh and low outside temperatures
Roperating the climate control system
Rswitching on consumers
The battery's physical characteristics are such
that leaving the vehicle parked for long periods
at low outdoor temperatures without charging it
can lead to:
Ra reduction in battery performance
Rlonger charge times
Notes on battery care
Avoid storing or transporting the vehicle at
excessively high or low temperatures over a long
period.
If you park the vehicle and leave it stationary for
long periods:
Rcheck the condition of charge of the high-
voltage battery more often
Rconnect the vehicle to a power supply
This prevents self-discharge and damage to the
high-voltage battery.
Terms of use
Please note the information on exceptions and
limitations in warranty documentation and in
the Maintenance Booklet.
Handling the charging cable and charg- ing cable controls
Always read the notes on the charging cable on
the inside of the charge socket flap.
Do not leave the charging cable controls
(
Ypage 32) hanging loose from an electrical
outlet. Otherwise, this could result in a poor
contact with the electrical outlet and malfunc-
tions when charging the vehicle.
30Charging the high-voltage battery
Driving and parking

If, after the charging process, the charging cable
is:
Rleft connected to the power socket, the cur-
rently selected values will be used for the nextcharging process.
Rremoved from the power socket, the values
will be reset to the minimum setting for the
next charging process. You may then need to reset the values of the maximum charge cur-
rent.
iIf the vehicle requires more time than usual
when charging, check the maximum charge
current settings using the controls on the
charging cable or in the on-board computer's
menu.
Indicator lamp on the vehicle socket
When the indicator lamp on the vehicle socket
lights up, this means the following:
Indicator
lamp
Flashes
orangeThe connection between the
vehicle and the current
source is being established
before charging begins.
Flashes
greenThe high-voltage battery is
being charged.
Flashes redA malfunction has occurred
while charging.
The indicator lamp goes out
after approximately
90 seconds.
Lights up
orangeA charging break for the high-
voltage battery is taking
place.
The indicator lamp goes out
after approximately
90 seconds.
Lights up
greenThe high-voltage battery is
fully charged.
The indicator lamp goes out
after approximately
90 seconds.
iIf the indicator lamp is off, lock or unlock the
vehicle. The indicator lamp then displays the
current status of the charging process again.
Connecting the charging cable
XShift the transmission to position P.
XSwitch the ignition off.
XPress the charge socket flap in the direction
of arrow:.
The charge socket flap swings up.
XPress fastener ;to the left.
Socket cap =is open.
XInsert the power supply plug into the electri-
cal outlet to the stop.
XInsert the charging cable connector into vehi-
cle socket ?to the stop.
Indicator lamp Afirst flashes orange and
then green.
The high-voltage battery is being charged.
If the charging cable is connected to the vehicle, you cannot start the engine or move the vehicle.
As soon as the charging process begins, you can
display the charging prediction on the Settings
on-board computer menu. The charging predic-
tion is either the anticipated condition of charge
at the programed departure time or the time
when the high-voltage battery will be fully
charged (
Ypage 44).
iDepending on the temperature, the fan and
battery cooling system may audibly switch on
during the charging process.
Charging the high-voltage battery33
Driving and parking
Z

Engine compartment
Checking coolant level
Observe the notes on checking and adding cool-
ant in the vehicle Operator's Manual.
The second coolant expansion tank in your vehi-
cle's engine compartment must not be filled.
Engine compartment51
Maintenance and care

Battery (vehicle)
Important safety notes
Your vehicle is equipped with a 12 V battery and
a high-voltage battery.
For the 12 V battery, observe the notes under
"Battery (vehicle)" in the vehicle Operator's
Manual.
GDANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-
voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
GWARNING
In the event of a vehicle fire, the internal pres- sure of the high-voltage battery can exceed a
critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk
of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements.
GWARNING
If the housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. These are poisonous and caustic.
There is a risk of injury.
Avoid contact with skin, eyes or clothing.
Immediately rinse electrolyte splashes off
with water and seek medical attention
straight away.
!Exhaustive discharge caused by the vehicle
standing idle for lengthy periods can damage the high-voltage battery. If the vehicle is idle
for lengthy periods leave the high-voltage bat-
tery connected to a charging station.
If the battery charge is sufficient, the high-volt-
age battery can also supply the 12 V battery with
energy. This happens only if the battery charge
of the 12 V battery requires this, e.g. after using
electrical consumers for an extended period
with the engine switched off. As the on-board
voltage is continuously monitored this can also
be performed when the engine is switched off.
The battery charge of the 12 V battery and the
on-board voltage are thereby kept stable for
longer.
Consult an authorized Mercedes-Benz Center if
you wish to leave your vehicle parked for a long
period of time.
Charging the high-voltage battery
while the vehicle is stationary
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
!Only charge the high-voltage battery in the
"Charging when stationary" mode. Do not
connect any battery chargers to the high-volt- age battery. This could damage the vehicle’s
high-voltage electrical system.
XBring the vehicle to a stop with the engine
running.
The engine powers the electric motor. The
electric motor operates as a generator. The
high-voltage battery is being charged.
If the high-voltage battery has been discharged
excessively, charge the high-voltage battery to
at least 60%. In "Charging while stationary"
mode, you can monitor the condition of charge
of the high-voltage battery up to a maximum of
70% in the COMAND display and the multifunc-
tion display (
Ypage 40).
52Battery (vehicle)
Breakdo wn assis tance