Page 41 of 58
Coolant temperature gauge
G WARNING
Opening the hood when the engine is over-
heated or when there is a fire in the engine
compartment could expose you to hot gases
or other service products. There is a risk of
injury.
Let an overheated engine cool down before
opening the hood. If there is a fire in the
engine compartment, keep the hood closed
and contact the fire department.
! A display message is shown if the coolant
temperature is too high.
If the coolant temperature is over 248 ‡
(120 †), do not continue driving. The engine
will otherwise be damaged.
The multifunction display shows the coolant
temperature in the Coolant submenu.
Under normal operating conditions and with the
specified coolant level, the coolant temperature
may rise to 248 ‡ (120 †).
Multifunction display
C
Permanent display: outside temperature or
speed ( Y
page 44)
D
Time
Page 42 of 58
Trip menu
Energy flow display Selecting the energy flow display in the
multifunction display X
Press the Y or e button on the steering
wheel to select the Trip menu.X
Use d or c to select Energy Flow .X
Confirm by pressing v on the steering
wheel.
The active components of the hybrid drive
system are highlighted in the energy flow dis-
play.
Overview
C
Internal combustion engine D
Electric motor
Page 43 of 58
Driving using th e engin e
The engin e powers th e vehicle.
The arrows fo r th e energ y flo w are shown in
white.
Driving using th e engin e plus boost mode
If you accelerate th e vehicl e rapidly, th e electric
motor support s th e combustion engin e by pro -
vidin g additional drive torque .
The arrows fo r th e energ y flo w are shown in red .
Driving using th e engin e plus energy
recover y
The engin e powers th e vehicle. The electric
motor is operatin g as a generator, e.g. in over-
run mod e and when brakin g ( Y
page 24) . The kineti c energ y of th e vehicl e is converted into
electrica l energy. The high-voltag e battery is
bein g charged.
The arrows fo r th e energ y flo w are shown in
green .
Driving using th e internal combustion
engin e and charging th e high-voltage bat -
tery
The engin e powers th e vehicle. The engin e also
powers th e electric motor. The electric motor
operates as a generator. The high-voltag e bat -
tery is bein g charged.
The arrows fo r th e energ y flo w are shown in
white.
Driving using th e internal combustion
engin e and discharging th e high-voltage
battery
The engin e powers th e vehicle. If th e vehicl e is
approachin g a downhill gradien t wit h a hig h
potential fo r energ y recuperation , th e condition
of charg e of th e high-voltag e battery is inten-
tionally kept low or intentionally reduced.
The arrows fo r th e energ y flo w are shown in
white.
Further information on th e route-based operat -
in g strategy ( Y
page 24) .Menus and submenus 41
On-board computer and displays Z
Page 44 of 58
Electric operation mode
The electric motor powers the vehicle. The high-
voltage battery supplies energy to the electric
motor.
The arrows for the energy flow are shown in
green.
Electric operation mode and charging the
high-voltage battery
The electric motor is operating as a generator,
e.g. in overrun mode and when braking. The
kinetic energy of the vehicle is converted into
electrical energy. The high-voltage battery is
being charged.
The arrows for the energy flow are shown in
green. 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: R
a mains socket ( Y
page 31)R
a charging station ( Y
page 35)R
a wallbox ( Y
page 34)
Displaying the current fuel consump-
tion
The menu displays the current fuel consump-
tion. X
Press the Y or e button on the steering
wheel to select the Trip menu.X
Confirm by pressing v on the steering
wheel. X
Press the d or c button to select the
display with the current fuel consumption.
You can also display the fuel consumption val-
ues and the electrical energy generated in the
multimedia system display. The multimedia sys-
tem shows the values from the last 15 minutes
in a bar graph ( Y
page 50).42
Menus and submenus
On-board computer and displays
Page 45 of 58
Displaying ranges
The approximat e range is base d on th e curren t
drivin g style.X
Press th e Y or e butto n on th e steerin g
whee l to selec t th e Tri p menu.X
Confir m by pressing v on th e steerin g
wheel.
The approximat e tota l range that can be cov-
ere d is calculated accordin g to your curren t
drivin g style and th e amount of fue l in th e
tank . If there is only a small amount of fue l lef t
in th e fue l tank , a vehicle wit h a fue l pum p
Page 46 of 58
X
Press the Y or e button on the steering
wheel to select the Settings menu.X
Press the d or c button to select the
Hybrid submenu.X
Confirm by pressing v on the steering
wheel. X
Press the d or c button to select the
Maximum Charge Current: function.
You will see the selected setting. X
Press the v button 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 30).
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 ( Y
page 18).
If you recharge the high-voltage battery, the
function also displays the charging prediction. X
Press the Y or e button on the steering
wheel to select the Settings menu.X
Press the d or c button to select the
Hybrid submenu.X
Confirm by pressing v on the steering
wheel. X
Press the d or c button to select the
Departure Time: function.
You will see the selected setting. X
To set no departure time: press the d or
c button to select No Preselection .X
Press v to 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 X
To set a departure time: press d or c
A , B or C to select the desired preset. X
Press the v button to confirm the selec-
tion. X
Press d or c to set the hours.X
Press v to confirm. X
Press d or c to set the minutes.X
Press v to confirm.
If you recharge the high-voltage battery, the
multifunction display shows the expected
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)
( Y
page 30).
Instrument cluster submenu
Selecting permanent display The Permanent Display: function allows you
to choose whether the multifunction display
always shows the outside temperature or the
speed.
The speed display is inverse to the speedome-
ter. X
Press the Y or e button on the steering
wheel to select the Settings menu.X
Press the d or c button to select the
Instrument Cluster submenu.X
Confirm by pressing v on the steering
wheel. X
Press the d or c button to select the
Permanent Display: function.
The current setting, Outside Temperature ,
Speedometer [km/h] or Speedometer
[mph] appears. X
To change the setting: press v again.44
Menus and submenus
On-board computer and displays
Page 47 of 58
Display messages
Hybrid drive syste mDisplay messages
Possible causes/consequences an d P Solutions
r Vehicl e Operational
Switch the Ignition
Off Before Exitin g You are exitin g th e vehicle when it is in a ready-to-driv e state. The
READY indicator in th e multifunction display is on . A warnin g tone also
sounds.
If you leav e th e vehicle:X
Safeguar d th e vehicle against rollin g away (se e th e vehicle Opera-
tor' s Manual). X
Switc h of f th e ignition and remov e th e SmartKey.
If you do no t leav e th e vehicle:X
Switc h of f th e electrical consumers , e.g. automatic climat e control,
seat heating.
Please note th e following: th e electrical consumers are supplied by th e
12 V battery. If th e vehicle is lef t in a ready-to-driv e stat e fo r an exten-
ded period, it will switch of f once th e 12 V battery is almost empty. It
will then only be possible to start th e vehicle usin g a secon d battery
(jump-starting).
Change the curren t
drive progra m
before changing the
operating
mode. or E xit manual
drive progra m M
before changing the
operating mod e You hav e attempted to chang e th e operatin g mode when in automatic
drive program Sport, Individual (wit h activated Spor t characteristics )
or manual drive program M .X
Selec t th e Comfort , Slippery or Individual (wit h activated Comfort or
Ec o characteristics ) drive program ( Y
page 22).X
Selec t th e preferred operatin g mode HYBRID , E-MODE , E-SAVE or
CHARGE ( Y
page 21).
E-MODE Currently
Unavailable The condition of charg e of th e high-voltage battery has dropped to th e
lowe r limit and th e E-MODE operatin g mode has bee n switched off.
Driving wit h th e internal combustion engin e is activated and th e oper-
atin g mode switches to th e basi c HYBRID setting .X
Continue drivin g usin g th e internal combustion engine.
You can switch to th e E-SAVE or CHARGE operatin g mode as
require d ( Y
page 21).
If you selec t CHARGE , th e high-voltage battery is charged.
Once th e charg e level display fo r th e high-voltage battery has
increase d slightly, you can switch to th e E-MODE operatin g mode
again .
Onl y E-MODE Availa ‐
ble Power Limite d
Refuel Immediately The fue l tank has bee n run dry and th e combustion engin e has bee n
switched off.
A warnin g tone also sounds.
The vehicle will be powered by electrical energ y only. Performanc e is
restricte d and th e vehicle may accelerat e more slowly than normal.X
Refuel at th e nearest gas station without fail .
In th e "Total range and electric range" menu, you can display th e
approximat e range of th e vehicle ( Y
page 43).Display messages 45
On-board computer and displays Z
Page 48 of 58
Display messages
Possible causes/consequences and P Solutions
Withou t starting
engine again, con ‐
sul t workshop You canno t start th e engin e again due to a malfunction .
A warning tone also sounds.
If th e engin e is running:X
Visit a qualified specialist workshop .
If you switch off th e engine:X
Safeguar d th e vehicl e against rollin g away (see th e vehicl e Opera-
tor' s Manual). X
Notify a qualified specialist workshop or breakdown service.
á Towing Not Permit ‐
ted See Operator' s
Manual The hybrid drive system is malfunctioning .X
Hav e th e vehicl e transporte d on a transporte r or trailer to th e near-
est qualified specialist workshop .
