Automa tic engine start
The automatically switched-off internal combus -
tio nengin estart sautomatically in certai nsitua-
tions ,if:
Rth epower demand from th edriver via th e
accelerato rpedal is greate rthan th eelectric
motor alon ecan provide
Rth edriver switches to driv eprogram Sor M
Rthecondition of charge of th ehigh-voltage
battery has reached th elower limit
Rth esettings of th eautomatic climat econtrol
require it, e.g. at external temperatures abov e
30 †
Overru nmod e
In overrun mode, th ecombustio nengin eis
switched off and is disconnected from th edriv e
train. The electric motor:
Rgenerates low thrust ,whic hcorrespond sto
th eoverrun mod eof an active combustio n
engin e
Rfunction sas agenerator and produce sth e
necessary energ yfor th eauxiliary consumer s
and charge sth ehigh-voltage battery
Ove rrun mod eis available in driv eprogram E
below 16 0km/h.
In driv eprogram E,after th eaccelerato rpedal
has been released th ecoasting characteristic s
of th evehicl eare adapted to th etraffic condi-
tions .Further information about th ehaptic
accelerato rpedal (
Ypage 230).
Route-based energy management
Forroute-based energ ymanagement, th esys-
te m factors in information about th eexpecte d
rout ewhen rout eguidance is active.
The information on th erout eis provide dby th e
multimedia system and includes th efollowing:
Rroad categories
Rspee dlimitation s
Rdataon downhill gradients
The use of electric energ yis automatically opti-
mally distributed from th ebeginning to th een d
of th ejourney, usin ginformation about th e
route. The distribution is pre-emptive and takes
int oconsideration :
Rthesections of th ejourney ahead
Rth eenerg yconsumption on th ewhole rout eThe condition of charge of th
ehigh-voltage bat -
tery is thus systematically controlled. In addi-
tion, th econtrol function takes int oaccoun t
that:
Rth efuel saving sthroug hth euse of electrical
energ ycan vary, depending on th erout e(e.g.
urban ,interurban or highway)
Rth euse of electrical energ yis held available in
particular for electric operation (e.g. urban
routes)
The vehicl ethus automatically select sth eopti-
mum driving mod efor th erespectiv esectio nof
th eroute.
Route-based energ ymanagemen tis available
under th efollowin gconditions:
Rdriv eprogram Eis selected
RHYBRID driving mod eis selected
Ractive rout eguidance is activated
Rsuitable map dat ais available
When route-based energ ymanagemen tis in
operation ,th earea in fron tof th evehicl eis
shown as green in th emultifunction display.
Parking
XApply th eelectric parking brake.
The red !indicator lamp in th einstrumen t
cluste rlights up.
XUse th eDIRECT SELECT leve rto shif tth e
automatic transmission to P.
XSwitch theignition off .
The READY indicator in th einstrumen tcluste r
goes out .
Further information on parking and switching off
th einternal combustio nengin e (
Ypage 177).
232PLUG‑ IN HYBRID operation
Driving and parking
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
