When the vehicle is pre-heated, the following
functions are activated if required:
RClimate control system
RBlower
RSeat heating
If you have activated ionization via the multime-
dia system, it is activated together with pre-
entry climate control.
Activating/deactivating
Before "Pre-entry climate control via SmartKey"
can be activated, you must activate the function
using the on-board computer.
XTo activate: unlock the vehicle with the
SmartKey or KEYLESS-GO.
The climate control functions are activated
for up to 5 minutes for pre-heating and pre-
cooling.
XTo deactivate: "Pre-entry climate control via
SmartKey" deactivates automatically when
the engine is started.
The following functions remain active after the
engine is started:
RSeat heating (heating)
RSeat ventilation (ventilation)
RIonization
Problems with "Pre-entry climate control via SmartKey"
ProblemPossible causes/consequences and MSolutions
"Pre-entry climate con-
trol via SmartKey" can-
not be switched on or
has switched itself off.The condition of charge of the high-voltage battery is under the speci-
fied minimum condition of charge.
XStart the engine when the vehicle is at a standstill.
The engine powers the electric motor. The electric motor operates
as a generator. The high-voltage battery is being charged.
Further information on charging the high-voltage battery via:
Ra mains socket (Ypage 31)
Ra charging station (Ypage 35)
Ra wallbox (Ypage 34)
"Pre-entry climate control via SmartKey" has been started more than
twice with the engine switched off.
XSwitch on the engine and let it run for more than ten seconds.
XTry again to switch on "Pre-entry climate control via SmartKey".
Pre-entry climate control at time of
departure
Important safety notes
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
General notes
You can use the "Pre-entry climate control at
departure time" function to cool or heat the
vehicle interior if the engine is not running.
The "Pre-entry climate control at departure
time" function can be activated regardless of
whether or not the vehicle is connected to an
electric power supply. The condition of charge of
the high-voltage battery must be higher than the
specified minimum condition of charge, how-
ever.
When the vehicle is connected to an electric
power supply, priority is given to charging the
high-voltage battery to the specified minimum
charge. "Pre-entry climate control at departure
time" is only activated subsequently.
18Operating the climate control systems
Climate control
Urban driving
In city traffic, energy is recuperated during fre-
quent deceleration phases.
The vehicle can be driven by the electric motor
alone up to a speed of approximately 80 mph
(130 km/h).
The vehicle is driven by the electric motor alone
only when all conditions for the automatic
engine switch-off are fulfilled.
Further information on the automatic engine
switch-off (
Ypage 23).
Driving on inter-urban roads
The following phases are possible when driving
on inter-urban roads:
Rrapid acceleration (boost mode)
Renergy recuperation
Relectric operation mode
The vehicle can be driven by the electric motor
alone up to a speed of approximately 74 mph
(120 km/ h).
A great deal of recovered energy may be avail-
able, depending on the route profile. This
reduces consumption and emissions.
Highway driving
When driving on a highway, switching off the
combustion engine has a particularly positive
effect on fuel consumption and emissions.
If the driver removes his/her foot from the
accelerator pedal in the Comfortdrive program
and a speed of 80 mph (130 km/h) is not excee-
ded, the combustion engine is automatically
switched off.
Further information on the automatic engine
switch-off (
Ypage 23).
Refueling
Refueling
General information
Observe the important safety notes under
"Refueling" in the vehicle Operator's Manual. Pressure in the fuel tank must be released
before refueling. Otherwise, the fuel filler flap
cannot be opened.
If you unlock/lock the vehicle from the outside,
the fuel filler flap also unlocks/locks.
The position of the fuel filler cap is displayed in
the instrument cluster
8. The arrow next to
the filling pump indicates the side of the vehicle.
Preparing to refuel
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, on vehicles with KEYLESS‑ GO:
XOpen the driver's door.
The vehicle electronics now have status 0.
This is the same as the SmartKey having been
removed.
The driver’s door can be closed again.
Opening the fuel filler flap (PLUG-IN
HYBRID vehicles)
XPull switch ;.
Indicator lamp :flashes and the Please
Wait Depressurizing Tankmessage
appears in the multifunction display.
If the fuel filler cap is unlocked, indicator
lamp :lights up.
The Tank is Depressurized Ready for
Refuelingmessage appears in the multi-
function display.
Please be sure to observe the information on
refueling on the fuel filler flap.
There is a malfunction if:
Rindicator lamp :first flashes and then goes
out
Rthe yellow engine diagnostics warning lamp
lights up
Refueling27
Driving an d parking
Z
