Notes On Plug-In Hybrid Operation - Mercedes-Benz GLC 2020 Operator's Manual

Notes on plug-in hybrid operation

& WARNING Risk of chemical burns and
poisoning from damaged high-voltage
battery
If the housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out.
Avoid contact with the skin, eyes or
#
clothing.
Immediately rinse electrolyte splashes
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off with water and seek medical atten‐
tion straight away.
& DANGER Risk of explosion from exces‐
sive internal pressure of the high-voltage
battery
In the event of a vehicle fire, the internal
pressure of the high-voltage battery could
exceed a critical value. In this case, flamma‐
ble gas escapes through a bleed valve in the
vehicle's underbody.
The gas can ignite.
Stop the charging process immediately
#
in case of unusual odors, smoke or burn
marks.
Leave the danger zone immediately.
#
Secure the danger zone at a sufficient
distance.
Call the fire service.
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The hybrid system combines a combustion
engine with an electric motor.
Characteristics when the vehicle is at a stand‐
still:
The combustion engine is generally switched
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off.
Engine idling only occurs in certain instan‐
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ces.
Characteristics when starting the vehicle:
If the high-voltage battery is sufficiently
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charged, the vehicle can be started with the
electric drive without the combustion engine
(noiseless start).
If the high-voltage battery for the electrical
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drive is not sufficiently charged or the oper‐
General notes
ating temperature of the combustion engine
has not been reached, the vehicle can start
with the combustion engine.
Characteristics with moderate power output
requests:
The combustion engine is switched off as
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often as possible during the journey.
The vehicle can, depending on the drive pro‐
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gram selected and the battery charge level,
be accelerated electrically up to speeds of
approximately 87 mph (140 km/h).
Characteristics with high power output requests:
The electric motor supports the combustion
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engine (boost effect), e.g. when pulling away
or accelerating.
The high-voltage battery is discharging.
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Characteristics when releasing the accelerator
pedal during the journey:
The electric motor is operated as a alternator
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when in overrun mode and during braking.
The high-voltage battery is charging.
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