Charging the high-voltage battery when
stationary
The engine and electric motor are switched off.
The arrows for the energy flow are not shown.
Further information on charging the high-volt-
age battery via:
Ra mains socket (Ypage 183)
Ra charging station (Ypage 186)
Ra wallbox (Ypage 185)
Displaying the total range and electrical
range
The approximate range is based on the current
driving style.
XUseÑ on the steering wheel to call up the
list of menus.
XPress the :or9 button on the steering
wheel to select the Tripmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the approximate
total range and electrical range.
248PLUG‑IN HYBRID operation
Driving and parking
XUse: or9 to select the DriveAssistsubmenu.
XPressato confirm your selection.
XPress the :or9 button to select
Lane Keeping Assist.
XPress ato confirm.
The current selection, StandardorAdap‐tive, appears.
XTo change the setting: pressaagain.
For further information about Active Lane Keep-
ing Assist, see (
Ypage 237).
HYBRID submenu (PLUG-IN HYBRID
vehicles)
Setting the maximum charge current
Using the Max.ChargeCurrentfunction, you
can limit the charge current value at which the
high-voltage battery should be charged.
Before starting the charging process 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:
Rit is not possible to set the charge current on
the charging cable
Rthe 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) (
Ypage 181).
XPress òon the steering wheel to open the
menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Hybridsubmenu.
XPressato confirm.
XPress :or9 to select the Max.Charge Currentfunction.
You will see the selected setting.
XPress the abutton to save the setting.
Before charging the high-voltage battery, check
the maximum permissible charge current for the
relevant power socket.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
(
Ypage 181).
Setting the departure time
You can climatize the vehicle interior prior to
your departure with the "Set departure time"
function. Further information on pre-entry cli-
mate control (
Ypage 157).
If you recharge the high-voltage battery, the
function also displays the charging prediction.
XPress the òbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Hybridsubmenu.
XPressato confirm.
XPress :or9 to select the DepartureTimefunction.
You will see the selected setting.
XPress the abutton to save the setting.
XTo set no departure time: press:or
9 to select No Pre-selection
.
XPressato confirm.
If you recharge the high-voltage battery, the
multifunction display also shows the time
when the high-voltage battery will be fully
charged.
or
XTo set a departure time: press:or9
A
, Bor Cto select the desired preset.
XPress the abutton to confirm the selec-
tion.
XPress :or9 to set the hours.
XPress ato confirm.
XPress :or9 to set the minutes.
XPress ato confirm.
If you recharge the high-voltage battery, the
multifunction display shows the expected
272Menus and submenus
On-board computer and displays
condition of charge of the high-voltage bat-
tery for the departure time set.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
(
Ypage 181).
Head-up display submenu
Selecting other displays
:Vehicle speed display
;Vehicle speed and navigation instruction
display
=Vehicle speed display and Traffic Sign Assist
Using the Display Content
function, you can
choose from up to four display options depend-
ing on the vehicle's equipment. The selected
contents appear in the head-up display.
In Mercedes-AMG vehicles, you can also choose
between two AMG displays. If you select an
AMG display, the head-up display shows AMG-
specific contents.
XPress the òbutton on the steering wheel
to open the menu list.
XPress :or9 on the steering wheel to
select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XPress :or9 to select Display Con‐tent.
XPressato confirm.
A graphic selection list appears.
XPress :or9 to select the desired dis-
play.
XPress the abutton to confirm the selec-
tion. For further information about the traffic sign
displays, see Traffic Sign Assist (
Ypage 229).
Further information on navigation displays can
be found in the multimedia system; see the sep-
arate operating instructions.
Setting the position
You can adjust the position of the head-up dis-
play on the windshield. You can compensate for
height differences if the seat positions are
changed, for example.
XSwitch on the head-up display (Ypage 259).
XPress the òbutton on the steering wheel
to open the menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XPress :or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XPress :or9 to select the Positionfunction.
XPress theabutton to save the setting.
XPress :or9 to adjust the position to a
level from Level+5(up) toLevel-5(down).
XPress the aor% button to save the
setting.
Using the Memory function, you can save and
call up the set position of the head-up display as
a single memory preset (
Ypage 126).
Setting the brightness
The brightness of the head-up display is auto-
matically adjusted to the surrounding ambient
light. You can also individually adjust the bright-
ness of the head-up display.
XSwitch on the head-up display (Ypage 259).
XPress òon the steering wheel to open the
menu list.
XPress the :or9 button on the steering
wheel to select the Settingsmenu.
XConfirm by pressing aon the steering
wheel.
XUse : or9 to select the Head-upDisplaysubmenu.
XPressato confirm.
XPress :or9 to select the Brightnessfunction.
XPress theabutton to save the setting.
Menus and submenus273
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!( Canada
only)
Parkin gBrake Inop‐
erativ e
The yellow !warning lamp lights up. The red F(USAonly)
or ! (Canada only) indicator lamp flashes for about te nseconds
after th eelectric parking brak ehas been applie dor released. It then
goe sout or remain slit .
The electric parking brak eis malfunctioning ,e.g. because of over-
voltag eor undervoltage.
XRemove th ecaus efor th eovervoltage or undervoltage, e.g. by
charging th ebattery or restarting th eengine.
XEngage or release th eelectric parking brake.
If it remain simpossible to apply or release th eelectric parking brake:
XSwitc hoff th eignition and tur nit bac kon .
XEngage or release th eelectric parking brake.
If th eelectric parking brak estill canno tbe released:
XConsult aqualified specialist workshop .
If th eelectric parking brak estill canno tbe applied:
XVisit aqualified specialist workshop .
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position P.
XVisitaqualified specialist workshop .
$(USA
only)
J( Canada
only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th ered $ brakesystem warning lamp also lights up while
th eengin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
Display messages283
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
OnlyE-MODE Availa ‐ble Power Limite dRefuel Immediately
PLUG-INHYBRID vehicles:
The fuel tan khas been run dry and th ecombustion engin ehas been
switched off .
A warning tone also sounds.
The vehicl ewill be powered by electrical energ yonly. Performance is
restricted and th evehicl emay accelerate mor eslowly than normal.
XRefue lat th eneares tgas station without fail .
In th e"Total range and electric range" menu, you can display th e
approximat erange of th evehicl e (
Ypage 248).
Engine wil lnotrestar tServic erequired
You canno tstart th eengin eagain due to amalfunction .
A warning tone also sounds.
If th eengin eis running:
XVisit aqualified specialist workshop .
If you switch off th eengine:
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XNotify aqualified specialist workshop or breakdown service.
á
Towing Not Permit ‐ted See Operator'sManual
The hybrid drive system is faulty.
XHaveth evehicl etransporte don atransporte ror trailer to th enear-
est qualified specialist workshop .
Û
MalfunctionServiceRequired
The hybrid drive system is faulty.
XVisitaqualified specialist workshop .
Û
Malfunction
The hybrid drive system is faulty.
XHaveth evehicl etowed away by aprofessional recovery compan yto
th eneares tqualified specialist workshop .
d
Malfunction
The hybrid drive system is faulty.
The ECO start/stopfunction may be malfunctioning .
The drive powe ris restricted.
XVisit aqualified specialist workshop .
ï
ChargerCable Con ‐nected
PLUG-INHYBRID vehicles:
The charging cable connecto ris connecte dto th evehicl esocket.
You canno tdrive off as lon gas th echarging cable connecto ris still
connected.
Befor eyou drive off :
XRemove thecharging cable connecto rfrom th evehicl esocke t
(Ypage 185).
298Display messages
On-board computer and displays
Battery (vehicle)
12 V battery – important safety notes
PLUG-IN HYBRID vehicles are equipped with a
12 V battery and a high-voltage battery. The fol-
lowing notes refer to the 12 V battery. Notes on
the high-voltage battery can be obtained in the
"High-voltage battery – important safety notes"
section (
Ypage 374).
Special tools and expert knowledge are required
when working on the battery, e.g. removal and
installation. You should therefore have all work
involving the battery carried out at a qualified
specialist workshop.
GWARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can
lead to function restrictions applying to
safety-relevant systems, e.g the lighting sys-
tem, the ABS (anti-lock braking system) or the
ESP
®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci-
dent, contact a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car- ried out at a qualified specialist workshop.
For further information about ABS and ESP
®,
see (Ypage 68) and (Ypage 73).
All vehicles except Mercedes-AMG vehicles:
GWARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. A build-up of
electrostatic charge can be caused, for exam-
ple:
Rby wearing clothing made from synthetic
fibers
Rdue to friction between clothing and seats
Rif you push or pull the battery across the car-
pet or other synthetic materials
Rif you wipe the battery with a cloth
GWARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
RIt is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables.
RNever connect or disconnect the battery
terminals while the engine is running.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
372Battery (vehicle)
Breakdo wn assis tance
Remove theSmartKey if you park th evehicl e
and do no trequire any electrical consumers.
The vehicl ewill then use ver ylittl eenergy, thus
conserving battery power .
PLUG-IN HYBRID vehicles: if thebattery
charge is sufficient, th ehigh-voltage battery can
also suppl yth e12 Vbattery. This only happens
if th econdition of charge of th e12 Vbattery
require sthis, e.g. after usin gelectrical consum-
ers for an extended period wit hth eengin e
switched off .As th eon-board voltag eis contin-
uously monitore dthis can also be performed
when th eengin eis switched off .The condition of
charge of th e12 Vbattery and th eon-board
voltag eare thereby kept stable for alonger
period.
High-voltage battery – important
safety notes
Only PLUG-I NHYBRID vehicles are equipped
wit h a high-voltage battery.
GDANGER
The vehicle's high-voltage electrical system is under high voltage. If you modify component s
in th evehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The component sin th evehi-
cle's high-voltage electrical system may be
damaged in an accident, althoug hth edamag e
is no tvisible. There is aris kof fatal injury.
Followin gan accident, do no ttouch any high -
voltag ecomponent sand never modify th e
vehicle's high-voltage electrical system. Hav e
th evehicl etowed away after an acciden tand
th evehicle's high-voltage electrical system
checke dby aqualified specialist workshop.
GWARNIN G
In th eevent of avehicl efire, th einternal pres-
sur eof th ehigh-voltage battery can exceed a
critical value .In this cas eflammabl egas
escapes throug h aventilation valv eon th e
underbody. The gas can ignite. There is aris k
of injury.
Leav eth edanger zone immediately. Secur e
th edanger area at asuitable distance, whils t
observing legal requirements .
GWARNING
If th ehousing of th ehigh-voltage battery has
been damaged, electrolyt eand gase smay
leak out .These are poisonous and caustic.
There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .
Immediately rinse electrolyt esplashes off
wit hwater and seek medical attention
straight away.
!Exhaustive discharge caused by th evehicl e
standing idle for lengthy periods can damag e
th ehigh-voltage battery. If th evehicl eis idle
for lengthy periods leav eth ehigh-voltage bat -
tery connecte dto acharging station .
Consult an authorize dMercedes-Benz Cente rif
you wish to leav eyour vehicl eparked for alon g
period of time.
Charging the 12 V battery
Mercedes-AM Gvehicles:
!Only use battery chargers wit h amaximum
charging voltag eof 14.4 V.
All other vehicles:
GWARNIN G
During charging and jump-starting ,explosive
gase scan escape from th ebattery. There is a
ris kof an explosion .
Particularly avoi dfire, open flames, creating
sparks and smoking. Ensur ethere is sufficien t
ventilation while charging and jump-starting .
Do no tlean ove r abattery.
GWARNIN G
Battery acid is caustic. There is aris kof injury.
Avoid contact wit hskin, eyes or clothing .Do
no tinhale any battery gases. Do no tlean ove r
th ebattery. Kee pchildren away from batter-
ies. Wash away battery acid immediately wit h
plenty of clean water and seek medical atten -
tion .
GWARNIN G
A discharged battery can freez eat tempera-
tures belo wfreezing point. When jump-start -
374Battery (vehicle)
Breakdown assistance
ing the vehicle or charging the battery, gasescan escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
!Only use battery chargers with a maximum
charging voltage of 14.8 V.
All vehicles:
!Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (
Ypage 376).
XOpen the hood.
XConnect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure (
Ypage 376).
Keep away from fire and open flames. Do not
lean over a battery. Never charge the battery if it
is still installed in the vehicle, unless you use a
battery charger which has been tested and
approved by Mercedes-Benz. A battery charger
unit specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the
charging of the battery in its installed position.
Contact an authorized Mercedes-Benz Center
for further information and availability. Read the
battery charger's operating instructions before
charging the battery.
All vehicles except Mercedes-AMG vehicles:
if the indicator/warning lamps in the instrument
cluster do not light up at low temperatures, it is
very likely that the discharged battery has fro-
zen. In this case you may neither jump-start the
vehicle nor charge the battery. The service life of
a thawed-out battery may be shorter. The start-
ing characteristics can be impaired, particularly
at low temperatures. Have the thawed- out bat
-
tery checked at a qualified specialist workshop.
Mercedes-AMG vehicles: at low temperatures,
do not charge a battery which has been removed
using a battery charger. Allow the battery to
warm up gently first, if necessary. Otherwise,
the service life can be shortened and the start-
ing characteristics impaired, especially at low
temperatures.
PLUG-IN HYBRID vehicles: if the battery
charge is sufficient, the high-voltage battery can
also supply the 12 V battery. This only happens if the condition of charge of the 12 V battery
requires this, e.g. after using electrical consum-
ers for an extended period with the engine
switched off. As the on-board voltage is contin-
uously monitored this can also be performed
when the engine is switched off. The condition of
charge of the 12 V battery and the on-board
voltage are thereby kept stable for a longer
period.
Battery (vehicle)375
Breakdown assistance
Z