Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 7).Batteries
Important safety notes
G
WARNING
The electrolyte of the high-voltage battery is
poisonous and corrosive. Avoid contact with
the skin, eyes or clothing, e.g. in the even tof
an accident.
Immediately rinse electrolyte splashes off
thoroughly with plenty of clean water. Consult
a docto rimmediately.
! 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, run
it for a few minutes once every six weeks
to charge up the high-voltage battery.
During the charging process, switch off all
electrical consumers, e.g. the automatic
climate control or the seat heating.
Yourv ehicle is equipped with two 12V
batteries and one high-voltage battery. The
high-voltage battery stores the energy for the
electric motor. The engine can be started
using the electric motor.
Have any work on the batteries carried out at
a qualified specialist workshop.
i Observe the safety information
(Y page 14) and information about the 12V battery (see the vehicle Operator's
Manual).
Installation locations of the 12V and high-
voltage batteries (Y page 10).
Consult an authorized Mercedes-BenzC enter
if you wish to leave your vehicle parked for a
long period of time. High-voltage battery
G
WARNING
Never leave the engine running in enclosed
spaces. The exhaust gases contain toxic
carbon monoxide. Breathing in exhaust fumes
is a health hazard and can lead to
unconsciousness or death.
! Charge the high-voltage battery only in
"Charging while stationary" mode. Do not
connecta ny battery chargers to the high-
voltage battery .This could damage the
vehicle’s high-voltage electrical system.
X Bring the vehicle to a stop with the engine
running.
The engine powers the electric motor. The
electric motor operates as a generator. The
high-voltage battery is being charged.
i In the "Charging when stationary"
operating mode, the high-voltage battery
can be charged to a maximum of 70%. You
can monitor the condition of charge of the
high-voltage battery in the COMAND
display and in the multifunction display
(Y page 29). Charging the 12 V battery
i Observe the safety information and
information on charging the 12 Vbattery in
the vehicle Operator's Manual. 38
BatteriesBreakdown assistance
Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Read the information on qualified
specialist workshops: (Y page 7).Information on the technical data
i The data stated here specifically refers to
a vehicle with standard equipment .Consult
an authorized Mercedes-Benz Center for
the data for all vehicle variants and trim
levels. Service products and filling
capacities Engine oil
Points to remember Only engine oils approved by Mercedes-Benz
may be used in Mercedes-Benz engines (for
further information see the vehicle
Operator's Manual).
Model Engine
model MB
Approval
E 400 HYBRID
276 229.5
Filling capacities
The following values refer to an oil change
including the oil filter.
Engine with oil filter
Capacity
6.9 US qt (6.5 l) Climate control system refrigerant
Important safety notes !
Only the refrigerant R-134a and the PAG
oil approved by Mercedes-Benz may be
used. The approved PAG oil may not be
mixed with any other PAG oil that is not
approved for R-134a refrigerant.
Otherwise, the climate control system may
be damaged.
Service work, such as topping-up refrigerant
or replacing components, may only be carried
out by a qualified specialist workshop. All
applicable regulations must be adhered to,
SAE standard J639 included.
Always have work on the climate control
system carried out at a qualified specialist
workshop.
Refrigerant instruction label Example: refrigerant instruction label
:
Warning symbol
; Refrigerant filling capacity
= Applicable SAE standards
? PAG oil part number
A Type of refrigerant
Warning symbols :indicate:
R possible dangers
R that it is necessary to have maintenance
work carried out at a qualified specialist
workshop 46
Service products and filling capacitiesTechnical data
