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Driving situa-
tions
Requirements and
conditions Vehicle behavior
Braking energy
regeneration
(Recuperation).
– Early and even brak-
ing with short brake
pedal travel.
The vehicle is braked by the
electric motor. Most of the
kinetic energy is then won
back and can be stored in the
form of electrical energy in the
high-voltage battery.
Driving in city
traffic.
– Selection of a moder-
ate speed.
Driving in fully electric mode at
this level is possible only with
a speed of up to approximately
50 km/h (31 mph).
– Avoid full acceleration.
The fuel consumption is re-
duced with moderate accelera-
tion due to higher efficiency of
the combustion engine and
driving in fully electric mode is
possible.
– Careful use of %
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Driving situa-
tions
Requirements and
conditions Vehicle behavior
– Avoid speeds of over
about 160 km/h
(99 mph).
Efficient sailing is possible with
a speed of about 160 km/h
(99 mph).
– Careful selection of
gear (S).
Sporty driving style with acti-
vated sport program increases
fuel consumption. Efficient
sailing in sport program with
combustion engine automati-
cally switched off is possible
with a speed of about 70 km/h
(43 mph).
Driving in cold
months.
– Do not warm up the
combustion engine by
running it with the vehi-
cle stationary.
The temperature of the com-
bustion engine increases very
slowly, but fuel consumption
increases considerably.
– Careful use of heating
for the rear window,
outside mirror, steering
wheel and front seats.
This prevents energy from
being lost and saves energy
for the electric motor.
– Leave the vehicle in a
garage overnight.
This prevents the high-voltage
battery and the vehicle interior
from cooling down too much.
The optimal temperature of the
high-voltage battery is reached
quicker at the beginning of the
journey and the combustion
engine can be switched off
quicker when the vehicle inte-
rior is sufficiently heated.
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By depressing the gas pedal while the vehicle is standing still and ACC is active, the vehicle will ac-celerate. Once you take your foot off the pedal, ACC will automatically resume the stored speed and regulate the set distance.
ACC will not automatically accelerate if the vehicle ahead accelerates.
Distance (time interval) to the vehicle ahead and driving profiles
The distance the ACC maintains to the vehicle traveling ahead is determined by time intervals. A time distance to the vehicle traveling ahead is maintained. This results in a speed-dependent distance. The
higher the speed, the larger the distance in feet/meters ⇒ .
The distance can be set at 4 different levels:
Distance Time distance at 65 mph
(105 km/h)
Very small about 1,0 Seconds
Small about 1,3 Seconds
Medium about 1,8 Seconds
Large about 2,5 Seconds
Besides changing the time distance, the acceleration characteristics can be changed, by choosing on of the following driving profiles:
x Comfort
x Normal
x Sport
The distance intervals can be set by pushing the slider switch on the lever ⇒ fig. 273. The driving profile can only be set in the infotainment system .
Always select a greater following distance to the vehicle ahead on wet roads than on dry roads.
Setting the distance and selecting a driving profile
In order to show the currently selected distance in the instrument cluster display, briefly tap the sliding
switch on the lever ⇒ fig. 273.
Setting the distance with the sliding switch on the lever ⇒ fig. 273:
In order to: You must ⇒ fig. 273: Result:
Increase the
distance by one
level
Briefly push the sliding switch
to the right (+).
The distance is in-
creased by 1 level.
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In order to: You must ⇒ fig. 273: Result:
Increase the
distance quickly
Push and hold the sliding
switch to the right (+).
The distance is in-
creased quickly by sev-
eral levels.
Decrease the
distance by one
level
Briefly push the sliding switch
to the left (-).
The distance is de-
creased by 1 level.
Decrease the
distance quickly
Push and hold the sliding
switch to the left (-).
The distance is de-
creased quickly by sev-
eral levels.
Selecting a driving profile in the infotainment system:
x Switch on the ignition.
x Push the infotainment button CAR.
x Tap on the Assistants button in the display.
x Select ACC.
x Tap on the Driving profiles button in the display and select driving profile.
DANGER
Following other vehicles too closely increases the risk of collisions and serious personal injury or even death.
x Always obey applicable traffic laws when setting the distance to the vehicles ahead in traffic.
x Setting short distances to the traffic ahead reduces the time and distance available to bring your vehicle to a safe stop and makes it even more necessary to pay close attention or traffic.
x Always use good judgment and select a safe following distance for the traffic, road and weather conditions.
x Never use Adaptive Cruise Control on narrow or winding roads or under poor road condi-tions (snow, ice, streets covered with standing water or gravel, for example) or when visibility is poor, especially when it is foggy.
x Always select a greater following distance to the vehicle ahead on wet roads than on dry roads.
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