Page 9 of 58
Protecting the environment
H Environmental note
Have a defective high-voltage battery dis-
posed of in an environmentally-responsible
manner. Contact a qualified specialist work-
shop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use an authorized Mercedes-Benz Center
for this purpose.
Operator's Manual
Vehicle equipment This Supplement provides information on all the
important functions of your hybrid vehicle that
are either not described or differ from the
descriptions in the vehicle's Operator's Manual.
The information supplements or substitutes the
corresponding sections in the vehicle's Opera-
tor's Manual. Under no circumstances does the
supplement replace the Operator's Manual.
This Supplement describes all models, and
standard and optional equipment for your sys-
tem, as available at the time of going to print.
Country-specific differences are possible. Bear
in mind that your vehicle may not feature all
functions described here. This also applies to
safety-relevant systems and functions. The
equipment in your vehicle may therefore differ
from that shown in the descriptions and illus-
trations.
The original purchase contract documentation
for your vehicle contains a list of all the systems
in your vehicle.
Should you have any questions concerning
equipment and operation, please consult an
authorized Mercedes-Benz Center.
The Operator's Manual and Maintenance Book-
let are important documents and should be kept
in the vehicle.
Operating safety
Important safety notes
Hybrid vehicles have a combustion engine and
an electric motor. The voltage supply for oper- ating the vehicle electrically is provided by the
vehicle's high-voltage electrical system on the
hybrid drive system.
G DANGER
The vehicle's high-voltage electrical system is
under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-
voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
All components of the hybrid drive system are
marked with yellow warning stickers that warn
you of the danger of high voltage. The cables of
the vehicle's high-voltage electrical system are
orange in color.
Always have all work on the hybrid drive system
carried out at a qualified specialist workshop.
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop.
Vehicles with an electric motor generate much
less driving noise than vehicles with internal
combustion engines. As a result, your vehicle
may not be heard by other road users in certain
situations. This can happen, for example, when
you are parking and your vehicle is not seen by
other road users. This requires you to adopt a
particularly anticipatory driving style, as it is
necessary to allow for the possibility that other
road users may behave erratically. Introduction 7
Z
Page 10 of 58
Hybrid drive system
C
Battery charger and voltage converter D
Vehicle socket
Page 11 of 58
Instrument cluster
C
Electrical range D
Recuperative Brake Syste m warning lamp ( Y
page 49)
Page 12 of 58
Hybrid drive system
General notes Hybrid technology combines a fuel efficient
internal combustion engine with a powerful
electric motor.
Important safety notes
Danger of electric shock
G DANGER
The vehicle's high-voltage electrical system is
under high voltage. If you modify components
in the vehicle's high-voltage electrical system
or touch damaged components, you may be
electrocuted. The components in the vehi-
cle's high-voltage electrical system may be
damaged in an accident, although the damage
is not visible. There is a risk of fatal injury.
Following an accident, do not touch any high-
voltage components and never modify the
vehicle's high-voltage electrical system. Have
the vehicle towed away after an accident and
the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
When towing a vehicle after an accident, be sure
to observe the following sections in the vehicle
Operator's Manual: R
Transporting the vehicle R
Towing the vehicle with the rear axle raised R
Towing a vehicle with both axles on the
ground
Read the safety instructions on towing and tow-
starting ( Y
page 53). All components of the hybrid drive system are
marked with yellow warning stickers that warn
you of the danger of high voltage. The cables of
the vehicle's high-voltage electrical system are
orange in color.
The ignition must be switched off when carrying
out general tasks, such as changing bulbs or
checking the coolant level.
Automatic switching off of the hybrid
drive system If components of the restraint system are acti-
vated during an accident, the hybrid drive sys-
tem is automatically deactivated.
The hybrid drive system is not activated when
the vehicle is started if: R
an electrical short circuit is detected in the
hybrid drive system R
an electrical connection in the hybrid drive
system is disconnected
This ensures that you do not come into contact
with high voltage.
Manual switching off of the hybrid drive
system The hybrid drive system can be deactivated
manually using the high voltage switch-off
device.
! To prevent damage to the hybrid drive sys-
tem please observe the following instruc-
tions: R
only deactivate the hybrid drive system
manually in the following situations. R
work on the hybrid drive system may only
be carried out at a qualified specialist work-
shop, even when it has been deactivated
manually.
Deactivate the hybrid system manually if: R
the u restraint system warning lamp in the
instrument cluster lights up after an accident R
the vehicle is badly damaged, e.g. after an
accident, and the restraint system compo-
nents were not activated R
the vehicle is badly damaged and has to be
towed or transported10
Hybrid drive system
Safety
Page 13 of 58
X
If possible, move the vehicle out of the
danger zone: shift the automatic transmis-
sion into position N .X
Release the electric parking brake. X
Roll the vehicle to a safe place and park it
safely.
Get assistance from others if necessary.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing. There is therefore a risk of being locked out
if the vehicle is being pushed or tested on a
dynamometer. X
Switch the ignition off. X
Shift the automatic transmission to park posi-
tion P .
Apply the electric parking brake.
Safeguard the vehicle against rolling away
(see the vehicle Operator's Manual). X
To use the high-voltage switch-off device:
open the tailgate. X
Lift the cargo compartment floor upwards
(see the vehicle Operator's Manual). X
Pull off the right-hand paneling in the cargo
compartment.
X
Press release clip C in the direction of the
arrow and pull it out. X
Pull high-voltage switch-off device D apart
until it engages.
If the hybrid drive system has been deactivated
due to reasons mentioned above, have it
checked at a qualified specialist workshop
before reactivation.
High-voltage battery
G WARNING
In the event of a vehicle fire, the internal pres-
sure of the high-voltage battery can exceed a critical value. In this case flammable gas
escapes through a ventilation valve on the
underbody. The gas can ignite. There is a risk
of injury.
Leave the danger zone immediately. Secure
the danger area at a suitable distance, whilst
observing legal requirements.
G WARNING
If the housing of the high-voltage battery has
been damaged, electrolyte and gases may
leak out. These are poisonous and caustic.
There is a risk of injury.
Avoid contact with skin, eyes or clothing.
Immediately rinse electrolyte splashes off
with water and seek medical attention
straight away.
! Exhaustive discharge caused by the vehicle
standing idle for lengthy periods can damage
the high-voltage battery. If the vehicle is idle
for lengthy periods leave the high-voltage bat-
tery connected to a charging station.
Charging the high-voltage battery ( Y
page 29).
Engine compartment Before opening the hood: X
Apply the electric parking brake. X
Shift the transmission to position P .X
Switch the ignition off. X
Observe the warning notes on the risk of elec-
tric shock ( Y
page 10). X
Observe the warning notes on the hood (see
the vehicle Operator's Manual).
RBS driving safety system (Recupera-
tive Brake System) The Recuperative Brake System supports you
when braking with an electronically-controlled
brake boost mode and enables the recovery of
kinetic energy (recuperation).
Further information about the Recuperative
Braking System ( Y
page 20).Hybrid drive system 11
Safety Z
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Occupant safety
Restraint system warning lamp If the restraint system is disrupted, the high-
voltage on-board electrical system may not be
switched off in the event of an accident as inten-
ded.
G DANGER
If the restraint system is malfunctioning,
restraint system components may be trig-
gered unintentionally or may not deploy as
intended during an accident. This can affect
for example the Emergency Tensioning
Device or the air bag. Furthermore, in the
event of an accident, the vehicle's high-volt-
age electrical system may not be deactivated
as intended. You may be electrocuted if you
touch the damaged components of the vehi-
cle's high-voltage electrical system. This
poses an increased risk of injury or even fatal
injury.
Have the restraint system checked and
repaired in a qualified specialist workshop as
soon as possible. After an accident, switch off
the ignition immediately and remove the key
from the ignition lock.
A malfunction has occurred if the u restraint
system warning lamp: R
does not light up after the ignition is switched
on R
does not go out after a few seconds while the
combustion engine or hybrid system is run-
ning R
lights up again while the combustion engine
or hybrid system is running12
Occupant safety
Safety
Page 15 of 58
Overview of climate control systems
General notes Observe the notes and the recommended settings in the vehicle Operator's Manual. The windows
could otherwise fog up.
Climate control regulates the temperature and air humidity in the vehicle interior. Due to the elec-
trical refrigerant compressor, the "Cooling with dehumidification" function is also operational with-
out the combustion engine running. Optimum climate control is only achieved with the side windows
and roof closed.
The residual heat function can only be activated or deactivated with the ignition switched off
( Y
page 17).
The "Pre-entry climate control" function is available. Use this function to briefly preheat or ventilate
the driver's seat area or the entire vehicle interior before entering the vehicle. The air from the air
vents can also be pre-cooled.
Control panel for dual-zone automatic climate control
USA only
Front control panel C
Sets the temperature, left D
Defrosts the windshield
Page 16 of 58
Canada on ly
Front control panel C
Sets the temperature, left D
Defrosts the windshield
