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Plug-in hybrid operation
268
gearshifting, the combustion engine is always
switched on.
Activating when driving with the electric motor:
Pull the left or right steering wheel gearshift
X
paddle (
page 172).
Y
The combustion engine is switched on. Man-
ual gearshifting is activated temporarily. The
selected gear and M appear in the multifunc-
tion display.
Activating when driving with the combustion
engine:
Pull the left or right steering wheel gearshift
X
paddle (
page 172).
Y
Manual gearshifting is activated temporarily.
The selected gear and M appear in the multi-
function display.
The ECO start/stop function is not available
when manually changing gear.
Further information on the manual drive pro-
gram (
page 172).
Y
Driving tips
General driving tips
Drive carefully and maintain a suitable distance
from the vehicle in front. Avoid frequent and
sudden acceleration as well as abrupt braking.
During partial electric drive, pulling away and
acceleration, the electric motor supports the
internal combustion engine.
During overrun in transmission position D and
braking, the electric motor operates as an alter-
nator.
Further information on the ECO start/stop func-
tion (
page 269).
Y
Additional driving tips (
Stationary vehicle
If the vehicle is stopped, the combustion engine
is, for the most part, switched off. Automatic
climate control continues to function. The elec-
tro-mechanically assisted steering gear allows
use of the power steering without loss of com-
fort.
page 194).
Y
Acceleration
Depending on the operating mode, pulling away
and driving under low load conditions are per-
formed:
entirely by electric propulsion
R
in combination with the internal combustion
R
engine
When accelerating rapidly under increased or
full load, increased boost mode is utilised. The
electric motor supports the combustion engine
by providing additional drive torque.
Overrun mode or braking
There are three possible operating modes when
the hybrid vehicle is decelerating:
When coasting and decelerating, energy recu-
R
peration is already taking place (
The electric motor functions as an alternator
and stores the recuperated energy in the
high-voltage battery.
When braking gently, the electric motor
R
increases the deceleration of the vehicle.
Energy recuperation is increased
(
page 259). The electric motor functions as
Y
an alternator and stores the recuperated
energy in the high-voltage battery.
During heavy braking, the service brake is
R
also used to slow down the vehicle. Both sys-
tems work together.
Driving in the city
In urban traffic, energy is recuperated during
frequent deceleration phases.
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 (
page 269).
Y
Driving on inter-urban roads
The following phases are possible when driving
on inter-urban roads:
rapid acceleration (boost mode)
R
energy recuperation
R
electric operation mode
R
The vehicle can be driven by the electric motor
alone up to a speed of approximately 120 km/h.
Depending on the characteristics of the route,
there may be a lot of recuperated energy avail-
able. This reduces consumption and emissions.
page 259).
Y
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