XUse: or9 to select the Hybridsub-
menu.
XPress ato 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.
The maximum charge current values in the on-
board computer may deviate from the charging
cable values.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
(
Ypage 169).
Setting the departure time
Using the "Setting departure time" function you
can:
Rclimatize the vehicle interior before depar-
ture. Further information on pre-entry climate control (
Ypage 142).
Rcharge the high-voltage battery at minimum
cost before departure at an intelligent charg-
ing station.
The vehicle will calculate an optimal loading
plan. The charging process starts when the elec-
tricity is at the best price possible. As a result,
the high-voltage battery is charged with elec-
tricity at a favorable rate.
Please note that the high-voltage battery may
not be fully charged by the time of departure.
Depending on the condition of charge of the
high-voltage battery and the selected departure
time, the necessary charge time may not be suf-
ficient.
If you would like to charge the high-voltage bat-
tery for a short period of time, please use the
setting "set no departure time and charge imme-
diately".
The charging process will start immediately
when you charge the high-voltage battery at a
normal charging station and have already selec-
ted the departure time.
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 and charge
immediately: press the:or9 to
select No Pre-selection
.
XPressato confirm.
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 the selector lever is shifted to position Pand
the charging cable connector is plugged in,
the multifunction display will show the com-
plete charging prediction after a few
moments.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
(
Ypage 169).
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-
Menus and submenus249
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature is belo w24 8 ‡ (120†). Otherwise ,th e
engin ecould be damaged.
XPay attention to th ecoolan ttemperature display.
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature may ris eto 24 8 ‡(120†).
#
See Operator' sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Rdefective powerelectronics (PLUG-IN HYBRID vehicles)
Ra torn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XConsult aqualified specialist workshop .
Display messages269
On-board computer and displays
Z
Hybrid drive system
Display messagesPossible causes/consequences andMSolutions
d
VehicleOperationalSwitchtheIgnitionOff Before Exiting
PLUG-IN HYBRID vehicles:
You are exiting the vehicle when it is in a ready-to-drive state. The
READY indicator in the multifunction display is on. A warning tone also
sounds.
If you leave the vehicle:
XSecure the vehicle against rolling away (Ypage 177).
XSwitch off the ignition and remove the SmartKey.
If you do not leave the vehicle:
XSwitch off the electrical consumers, e.g. automatic climate control,
seat heating.
Please note the following: The electrical consumers are supplied by
the 12 V battery. If the vehicle is left in a ready-to-drive state for an
extended period, it will switch off once the 12 V battery is almost
empty. It will then only be possible to start the vehicle using a second
battery (jump-starting).
Change the currentdrive programbeforechangingtheoperating mode.or
Exit manual drive
program M beforechangingtheoperat‐ing mode.
PLUG-IN HYBRID vehicles:
You have attempted to change the operating mode in the automatic
drive program S(Sport), S+(Sport Plus) or in the manual drive pro-
gram M.
XActivate drive program C(Comfort) or E(Economy) (Ypage 229).
XSelect the preferred operating mode HYBRID,E-MODE,E-SAVE or
CHARGE (Ypage 226).
E-MODE CurrentlyUnavailable
PLUG-IN HYBRID vehicles:
The condition of charge of the high-voltage battery has dropped to the
lower limit and the E-MODEoperating mode has been switched off.
Driving with the internal combustion engine is activated and the oper-
ating mode switches to the basic HYBRIDsetting.
XContinue driving using the internal combustion engine.
You can switch to the E-SAVEorCHARGE operating mode as
required (
Ypage 226).
If you select CHARGE, the high-voltage battery is charged.
Once the charge level display for the high-voltage battery has
increased slightly, you can switch to the E-MODEoperating mode
again.
272Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
ServiceRequiredDoNot Shift GearsVisit Dealer
You canno tchang eth etransmission position due to amalfunction .
A warning tone also sounds.
If transmission position Dis selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position D.
If transmission position R,N or Pis selected:
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XNotify aqualified specialist workshop or breakdown service.
ReversingNotPossi‐bleServic eRequiredYou canno tshift int oth etransmission position Rdue to amalfunction .
The transmission position sP,N or Dcontinu eto be available.
A warning tone also sounds.
XVisit aqualified specialist workshop .
Transmission Mal‐function StopAmalfunction has occurred in th emechanical transmission compo -
nents.
A warning tone also sounds. The gearbox automatically shift sto posi-
tion N.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XShift th etransmission to position P.
XSecureth evehicl eagainst rollin gaway (Ypage 177).
XNotify aqualified specialist workshop or breakdown service.
Sto pVehicl eLeaveEngineRunnin gWaitTransmission Cool‐ing
PLUG-I NHYBRID vehicles:
The transmission has overheated. Pullin gaway can be temporarily
impaire dor no tpossible.
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.
XLeav eth eengin erunning.
XWait until th edisplay message disappear sbefore pullin gaway.
Auxiliary Batter yMalfunctionPLUG-INHYBRID vehicles only:
The auxiliary battery for th etransmission is no longer bein gcharged.
XVisit aqualified specialist workshop .
XUntilthen ,set th etransmission to position Pbefore you switch off
th eengine.
XBefor eleaving th evehicle, apply th eelectric parking brake.
NThe trunk lid is open .
XCloseth etrunk lid.
Display messages28 3
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
MThe hoodis open . Awarning tone also sounds.
GWARNIN G
The open hoo dmay bloc kyour vie wwhen th evehicl eis in motion .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 177).
XCloseth ehood.
CAt least on edoor is open . Awarning tone also sounds.
XClos eall th edoors.
_
Rea rLef tBackrestNot Latche dorRea rRight Backrest NotLatche d
The backrest in th erear is no tengage don th eleft-han dand/o rright -
han dside .
XPush th ebackrest bac kuntil it engages.
_
Rea rCenter Back‐res tNot Engage d
The center rear seat backrest is no tengaged.
XPush th ebackrest bac kuntil it engages.
&
Pre-Entry Climat eCtrl. (ViaSmart‐Key )AvailableAgain After EngineStart
PLUG-I NHYBRID vehicles:
Wit hth eengin eswitched off ,you hav eattempte dto switch on th epre -
entr yclimat econtrol mor ethan twice .
XLet theengin erun for te nseconds.
Afte rrunnin gth eengine, th epre-entry climat econtrol is opera-
tional again .
&
Pre-Entry Climat eCtrl. (ViaSmart‐Key )InoperativeHVBatter yLow
PLUG-I NHYBRID vehicles:
The on-boar dvoltag eis to olow. The pre-entry climat econtrol canno t
be switched on .
XDrive foralonger distance.
The battery is bein gcharged. Whe nth econdition of charg eof th e
high-voltage battery is ove rth especified minimum ,pre-entry cli -
mat econtrol is operational again .
284Display messages
On-board computer and displays
XStow the tire sealant bottle and the tire infla-
tion compressor.
XPull away immediately.
XStop after driving for approximately ten
minutes and check the tire pressure with the
tire inflation compressor.
The tire pressure must now be at least
130 kPa (1.3 bar/19 psi).
GWARNING
If the required tire pressure is not reached
after driving for a short period, the tire is too
badly damaged. The tire sealant cannot repair
the tire in this instance. Damaged tires and a
tire pressure that is too low can significantly
impair the vehicle's braking and driving char-
acteristics. There is a risk of accident.
Do not continue driving. Contact a qualified
specialist workshop.
iIn cases such as the one mentioned above,
contact an authorized Mercedes-Benz Cen-
ter. Or call 1-800-FOR-MERCedes (in the
USA) or 1-800-387-0100 (in Canada).
XCorrect the tire pressure if it is still at least
130 kPa (1.3 bar/19 psi). See the Tire and
Loading Information placard on the driver's
side B-pillar or the tire pressure table in the
fuel filler flap for values.
XTo increase the tire pressure: switch on the
tire inflation compressor.
XTo reduce the tire pressure: depress pres-
sure release button :next to pressure
gauge ;.
XWhen the tire pressure is correct, unscrew the
filler hose from the valve of the sealed tire.
XScrew the valve cap onto the tire valve of the
sealed tire.
XTo remove the tire sealant bottle from the tire
inflation compressor, press together the lock-
ing tabs on the yellow cap.
XPull the tire sealant bottle out of the tire infla-
tion compressor.
The filler hose remains attached to the tire
sealant bottle.
XDrive to the nearest qualified specialist work-
shop and have the tire changed there.
XHave the tire sealant bottle and the filler hose
replaced as soon as possible at a qualified
specialist workshop.
XHave the tire sealant bottle replaced every
four years at a qualified specialist workshop.
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 349).
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
Battery (vehicle)347
Breakdown assistance
Z
Observe the service intervals in the Mainte-
nance Booklet or contact a qualified specialist
workshop for more information.
!Always have work on batteries carried out at
a qualified specialist workshop. Should it, in
exceptional circumstances, be absolutely
necessary to disconnect the 12-volt battery
yourself, observe the following:
Rsecure the vehicle to prevent it from rolling
away.
Rswitch off the ignition.
Ralways disconnect the negative terminal
clamp first, followed by the positive termi-
nal clamp.
After the battery has been disconnected, the
transmission is locked in position P.
After the work has been done, install the bat- tery and replace the cover of the positive ter-
minal clamp firmly.
Comply with safety precautions and take pro-
tective measures when handling batteries.
Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the bat-
tery. Avoid creating sparks.
Electrolyte or battery acid is corro-
sive. Avoid contact with skin, eyes or
clothing.
Wear suitable protective clothing,
especially gloves, apron and face-
guard.
Immediately rinse electrolyte or acid
splashes off with clean water. Con-
tact a physician if necessary.
Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehicle
occupants from suffering acid burns should the
battery be damaged in the event of an accident.
In order for the battery to achieve the maximum
possible service life, it must always be suffi-
ciently charged.
The vehicle battery, like other batteries, can dis-
charge over time if you do not use the vehicle. In
this case, have the battery disconnected at a
qualified specialist workshop. You can also
charge the battery with a charger recommended
by Mercedes-Benz. Contact a qualified special-
ist workshop for further information.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly for
short trips or if you leave it standing idle for a
lengthy period. Consult a qualified specialist
workshop if you wish to leave your vehicle
parked for a long period of time.
Remove the SmartKey if you park the vehicle
and do not require any electrical consumers.
The vehicle will then use very little energy, thus
conserving battery power.
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.
High-voltage battery – important
safety notes
Only PLUG-IN HYBRID vehicles are equipped
with a high-voltage battery.
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
Battery (vehicle)349
Breakdown assistance
Z
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 vehicles with a lithium-
ion battery:if the indicator/warning lamps in
the instrument cluster do not light up at low
temperatures, it is very likely that the dis-
charged battery has frozen. 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 starting characteristics can
be impaired, particularly at low temperatures.
Have the thawed-out battery checked at a quali-
fied specialist workshop.
Vehicles with a lithium-ion battery: 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 starting 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
whe n the e
ngine 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)351
Breakdown assistance
Z