Mercedes-Benz S-Class 2013 Owner's Manual page 281

Hybrid operation
278
you have switched on the turn signals. In
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this event, the warnings are suppressed
for a certain period of time.
a driving safety system intervenes, such
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as ABS, BAS or ESP
you accelerate hard, e.g. kickdown.
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you brake hard.
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you steer actively, e.g. swerve to avoid
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an obstacle or change lane quickly.
you cut the corner on a sharp bend.
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In order that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system recognises certain con-
ditions and warns you accordingly.
The warning vibration occurs earlier if:
you approach the outer lane marking on a
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bend.
the road has very wide lanes, e.g. a motor-
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way.
the system recognises solid lane markings.
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The warning vibration occurs later if:
the road has narrow lanes.
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you cut the corner on a bend.
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Towing a trailer
If you attach a trailer, make sure that you have
correctly established the electrical connec-
tion. This can be accomplished by checking
the trailer lighting.
Hybrid operation
Points to remember
General notes
Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor. The hybrid system automati-
cally selects the most efficient operating
mode for every driving situation. Drive the
vehicle in the usual manner.
To save fuel, the hybrid system switches off
the combustion engine as often as possible
during the journey when power output
®
.
requirements are low. When power output
requirements are low, the electric motor pow-
ers the vehicle. When power output require-
ments are high, the combustion engine is
switched on, even during a journey. When the
vehicle is stationary, the combustion engine
is usually switched off. Consequently, there
is usually no engine idling as with combustion
engine vehicles.
For pulling away and accelerating, the electric
motor supports the internal combustion
engine using the power stored in the high-
voltage battery. In addition, the power is used
for partially electric driving, operation of the
electric coolant compressor and to support
the 12 V on-board electrical system. In this
way the hybrid drive helps to reduce your
vehicle's fuel consumption.
Observe the driving tips on hybrid operation
( page 288).
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RBS (Recuperative Brake System)
If you release the accelerator pedal when the
vehicle is in motion, overrun recuperation is
initiated. The electric motor is operated as a
generator when in overrun mode and when
you brake. Hybrid technology converts the
kinetic energy of the vehicle into electricity
and stores it in the high-voltage battery.
Observe the "Important safety notes" on the
RBS ( page 46).
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Important safety notes
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WARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
If the green READY indicator is lit in the instru-
ment cluster when the vehicle is stationary,
the internal combustion engine has been