2016 MERCEDES-BENZ C CLASS charging

Problems with the charging process Problem
Possible causes/consequences and P Solutions
The charge socket flap
cannot be opened. The charge socket flap is not unlocked. X
Unlock the vehicle ( Y
page 81).
If the key battery is discharged: X
Unlock the driver's door using the mechanical key ( Y
page 83).
or X
Unlock the vehicle centrally from the inside ( Y
page 88).
The charge socket flap is unlocked, but the opening mechanism is
jammed. X
Lock the vehicle and unlock it again.
If, after that, the opening mechanism is still jammed: X
Consult a qualified specialist workshop.
The high-voltage battery
is not being charged. The indicator lamp on the vehicle socket does not light up or flashes
red.
A malfunction has occurred during the initialization of the charging
process or during charging. X
Disconnect the charging cable connector from the vehicle socket
and plug it back into the vehicle socket.
If the problem persists: X
Use a different charging station.
or X
Consult a qualified specialist workshop.
The high-voltage battery
is not charged during the
charging process when
connected to a power
socket. The electrical outlet is faulty. X
Have the electrical outlet checked to test if it is functioning prop-
erly.
or X
Use a different electrical outlet.
The charging cable con-
nector cannot be
removed from the vehi-
cle socket. The snap fastener on the charging cable connector is locked. X
Press and hold the button on the charging cable connector. The
snap fastener on the vehicle socket is unlocked. X
Remove the charging cable connector from the vehicle socket.
If the snap fastener on the charging cable connector is locked: X
Press and hold the button on the charging cable connector and try
to release the lock.Charging the high-voltage battery (PLUG-IN HYBRID vehicles) 175
Driving and parking Z

Online access to the vehicle
General information
G WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle while driving, you will be distracted from
traffic conditions. You could also lose control
of the vehicle. There is a risk of an accident.
Only operate the equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
i Operation of integrated information sys-
tems and communications equipment in
the vehicle: you must observe the legal
requirements for the country in which you are
currently driving.
You can call up remote query and remote con-
figuration functions for your vehicle using online
access to the vehicle. This is possible from an
Internet-enabled computer, as well as many
modern smartphones.
Please call the Mercedes-Benz Customer Assis-
tance Center (USA) at the hotline number
1-800-FOR-MERCedes (1-800-367-6372) to
obtain the relevant Internet address.
Online access to the vehicle is restricted to the
contractual periods of mbrace. Activated
access to the mbrace emergency call system is
required for use.
In order to be able to use online access to the
vehicle, you must agree to the local terms of
use.
Further information on supported devices, avail-
able languages and contractual periods can be
obtained from any authorized Mercedes-Benz
Center.
In order to be able to call up online access to the
vehicle, the vehicle must be connected to the
Internet ( Y
page 176).
Notes on data protection
Remember that online access to the vehicle
offers access to your data.
i Prevent unauthorized persons from
accessing this data. Every person who has access to the informa-
tion stated can use the functions of the online
access to the vehicle.
i Information when selling a vehicle or
buying a used vehicle: R
If you sell your vehicle, you are obliged to
delete the vehicle from your personal area
on the online access to the vehicle. R
If you have bought a used vehicle, it is pos-
sible that the previous owner still has
access to the online access to the vehicle.
Calling up functions The online access to the vehicle allows you
access to your vehicle's information and func-
tions using remote query and remote configu-
ration.
The following functions can be accessed: R
request the current condition of charge of the
high-voltage battery R
program the departure time ( Y
page 249)R
set or activate the "Pre-entry climate control
at departure time" function (see the Digital
Operator's Manual)
Information on additional functions and operat-
ing instructions can be found within the online
access to the vehicle.
Connecting the vehicle to the Internet
i This function is not available in all countries
and requires activated access to the mbrace
emergency call system.
You can use the online access to the vehicle if
the vehicle has a connection to the Internet via a
mobile phone network. The necessary data is
transmitted by radio. The vehicle automatically
recognizes whether a connection to the Internet
is possible or not. No presets are necessary.
i Restrictions in reception are possible if the
vehicle is in an underground car park, for
example. Restrictions may also occur in areas
with poor mobile network coverage.176
Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
Driving and parking

The electric parking brake is also engaged auto-
matically if: R
DISTRONIC PLUS brings the vehicle to a
standstill or R
the HOLD function is keeping the vehicle sta-
tionary R
Active Parking Assist is keeping the vehicle
stationary
In addition, at least one of the following condi-
tions must be fulfilled: R
the engine is switched off R
the driver is not wearing a seat belt and the
driver's door is opened R
there is a system malfunction R
the power supply is insufficient R
the vehicle is stationary for a lengthy period
The red I (USA only) or $ (Canada only)
indicator lamp in the instrument cluster goes
out.
The electric parking brake is not automatically
engaged if the engine is switched off by the ECO
start/stop function.
Releasing automatically Your vehicle's electric parking brake is auto-
matically released if all of the following condi-
tions are met: R
the engine is running. R
the transmission is in position D or R .R
the seat belt has been fastened. R
you depress the accelerator pedal.
If the transmission is in position R , the trunk lid
must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake: R
the driver's door is closed. R
you have shifted out of transmission position
P or you have previously driven faster than
2 mph (3 km/h).
Ensure that you do not depress the accelerator
pedal unintentionally. Otherwise the parking
brake will be released and the vehicle will start
to move. Emergency braking The vehicle can also be braked during an emer-
gency by using the electric parking brake. X
While driving, push handle C of the electric
parking brake ( Y
page 178).
The vehicle is braked as long as you keep
handle C of the electric parking brake
depressed. The longer electric parking brake
handle C is depressed, the greater the brak-
ing force.
During braking: R
a warning tone sounds R
the Please Release Parking Brake mes-
sage appears R
the red I (USA only) or $ (Canada
only) indicator lamp in the instrument cluster
flashes
When the vehicle has been braked to a stand-
still, the electric parking brake is engaged.
Parking the vehicle for a long period If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
If you leave the vehicle parked for longer than six
weeks, the vehicle may suffer damage as a
result of lack of use. X
Visit a qualified specialist workshop and seek
advice.
i You can obtain information about trickle
chargers from a qualified specialist work-
shop.
PLUG-IN HYBRID vehicles: observe the impor-
tant safety notes for the high-voltage battery
( Y
page 349).
Driving tips
General driving tips
Important safety notes
G WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect, Driving tips 179
Driving and parking Z

E-SAVE R
Electric mode or driving
with the internal combus-
tion engine is possible R
Automatic selection of
drive mode with electric
mode as often as possi-
ble R
The current condition of
charge of the high-volt-
age battery is maintained
so the electrical energy
can be used at a later
time
CHARGE R
Electric drive is not pos-
sible R
Charging the high-volt-
age battery while driving
using the combustion
engine
In automatic drive program S ( Y
page 229) and
during manual gearshifting ( Y
page 229), only
HYBRID operating mode is available.
If you switch from automatic drive program S to
automatic drive program E , HYBRID operating
mode continues to be selected.
If manual drive program M is deactivated, the
automatic transmission shifts: R
into the automatic drive program that was last
selected R
into the driving mode that was last selected
Each time the engine is started, HYBRID mode
is automatically selected.
Operating the on-board computer You can display the current operating condition
of the hybrid drive system in the multifunction
display and on the display of the multimedia
system ( Y
page 227).
In the multimedia system display, you can also
call up a graphic display of the fuel consumption
and generated electricity ( Y
page 228). Menus and submenus
Selecting displays in the display of the
multimedia system X
Press the

X
Use d or c to select the Hybrid sub-
menu. X
Press v to confirm.X
Press d or c to select the Max.
Charge Current function.
You will see the selected setting. X
Press the v button to save the setting.
Before charging the high-voltage battery, check
the maximum permissible charge current for the
relevant power socket.
The maximum charge current values in the on-
board computer may deviate from the charging
cable values.
Further information on charging the high-volt-
age battery (PLUG-IN HYBRID vehicles)
( Y
page 169).
Setting the departure time Using the "Setting departure time" function you
can: R
climatize the vehicle interior before depar-
ture. Further information on pre-entry climate
control ( Y
page 142).R
charge the high-voltage battery at minimum
cost before departure at an intelligent charg-
ing station.
The vehicle will calculate an optimal loading
plan. The charging process starts when the elec-
tricity is at the best price possible. As a result,
the high-voltage battery is charged with elec-
tricity at a favorable rate.
Please note that the high-voltage battery may
not be fully charged by the time of departure.
Depending on the condition of charge of the
high-voltage battery and the selected departure
time, the necessary charge time may not be suf-
ficient.
If you would like to charge the high-voltage bat-
tery for a short period of time, please use the
setting "set no departure time and charge imme-
diately".
The charging process will start immediately
when you charge the high-voltage battery at a
normal charging station and have already selec-
ted the departure time. X
Press the

Display messages
Possible causes/consequences and P Solutions
The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning .X
Switc h off th e ignition and tur n it bac k on .X
Apply th e electric parking brake.
If it is no t possibl e to engage th e electric parking brake:X
Shift th e transmission to position P .X
Visit a qualified specialist workshop .
If it is no t possibl e to release th e electric parking brak e manually:X
Releas e th e electric parking brak e automatically ( Y
page 178).
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
The yellow $ warning lamp lights up. If you manually apply or
release th e electric parking brake, th e red I (US A only) or $
(Canada only) indicator lamp flashes .
The electric parking brak e is malfunctioning . It is no t possibl e to apply
th e electric parking brak e manually.X
Shift th e selector lever to P , as th e electric parking brak e is no t
applie d automatically. X
Visit a qualified specialist workshop .
If it is no t possibl e to release th e electric parking brak e manually:X
Releas e th e electric parking brak e automatically ( Y
page 178).
I (USA
only)
$ ( Canada
only)
Parkin g Brake Inop‐
erativ e The yellow $ warning lamp lights up. The red I (US A only)
or $ (Canada only) indicator lamp flashes for about te n seconds
after th e electric parking brak e has been applie d or released. It then
goe s out or remain s lit .
The electric parking brak e is malfunctioning , e.g. because of over-
voltag e or undervoltage. X
Remove th e caus e for th e overvoltage or undervoltage, e.g. by
charging th e battery or restarting th e engine.X
Engage or release th e electric parking brake.
If it remain s impossible to apply or release th e electric parking brake:X
Switc h off th e ignition and tur n it bac k on .X
Engage or release th e electric parking brake.
If th e electric parking brak e still canno t be released:X
Consult a qualified specialist workshop .
If th e electric parking brak e still canno t be applied:X
Visit a qualified specialist workshop .260
Display messages
On-board computer and displays

ESP ®
(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example: R
when braking R
in the event of abrupt steering maneuvers
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci-
dent, contact a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car-
ried out at a qualified specialist workshop.
For further information about ABS and ESP ®
,
see ( Y
page 68) and ( Y
page 73).
All vehicles except vehicles with a lithium-
ion battery:
G WARNING
Electrostatic build-up can lead to the creation
of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle
body to remove any existing electrostatic
build-up.
The highly flammable gas mixture forms when
charging the battery as well as when jump-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. A build-up of
electrostatic charge can be caused, for exam-
ple: R
by wearing clothing made from synthetic
fibers R
due to friction between clothing and seats R
if you push or pull the battery across the car-
pet or other synthetic materials R
if you wipe the battery with a cloth
G WARNING
During the charging process, a battery produ-
ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion. R
Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts. R
Never place metal objects or tools on a bat-
tery. R
It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery. R
When jump-starting, make sure that the
battery poles with identical polarity are
connected. R
It is particularly important to observe the
described order when connecting and dis-
connecting the jumper cables. R
Never connect or disconnect the battery
terminals while the engine is running.
G WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
All vehicles:
H Environmental note
Batteries contain dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment.
Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe-
cialist workshop or a special
collection point for used bat-
teries.
! Have the battery checked regularly at a
qualified specialist workshop.348
Battery (vehicle)
Breakdown assistance

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.
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.
Consult an authorized Mercedes-Benz Center if
you wish to leave your vehicle parked for a long
period of time.
Charging the 12 V battery
Vehicles with a lithium-ion battery:
! Only use battery chargers with a maximum
charging voltage of 14.4 V.
All other vehicles: G WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a
risk of an explosion.
Particularly avoid fire, open flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery.
G WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
G WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases
can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a maximum
charging voltage of 14.8 V.
All vehicles:
! Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment ( Y
page 352).X
Open the hood. X
Connect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure ( Y
page 352).
Keep away from fire and open flames. Do not
lean over a battery. Never charge the battery if it
is still installed in the vehicle, unless you use a
battery charger which has been tested and
approved by Mercedes-Benz. A battery charger
unit specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the350
Battery (vehicle)
Breakdown assistance