2016 MERCEDES-BENZ C-Class SEDAN Hybrid battery

Problems with the charging proc-
ess .................................................175
Terms of use .................................. 170
Vehicle fire ....................................... 45
Hill start assist .................................. 150
HOLD function
Activating ....................................... 195
Activation conditions ..................... 194
Deactivating ................................... 195
Display message ............................ 277
Function/notes .............................1 94
General notes ................................ 194
Home address
see also Digital Operator's Man-
ual ..................................................2 98
Hood
Closing ...........................................3 31
Display message ............................ 284
Important safety notes .................. 330
Opening ......................................... 330
Horn ...................................................... 35
HUD
see Head-up display
Hybrid drive system
Automatic switch off ........................ 44
Danger of electric shock .................. 44
Display message ............................ 272
General notes .................................. 44
High-voltage battery ........................ 45
Important safety notes .................... 44
Manual switch off ............................ 44
Opening the hood ............................ 45
Warning lamp ................................. 288
Hybrid vehicles
Important safety notes .................... 44
Hydroplaning ..................................... 184
I
Ignition lock
see Key positions
Immobilizer .......................................... 79
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 295
Indicator lamps
see Warning and indicator lamps Indicators
see Turn signals
Insect protection on the radiator .... 331
Instrument cluster
Overview .......................................... 36
Warning and indicator lamps ........... 36
Instrument cluster lighting .............. 235
Interior lighting ................................. 121
Control ...........................................1 22
Overview ........................................ 121
Reading lamp ................................. 121
iPod
®
see also Digital Operator's Man-
ual ..................................................2 98
J
Jack
Using ............................................. 381
Jump starting (engine) ......................352
K
Key positions
SmartKey ....................................... 146
Start/Stop button .......................... 146
KEYLESS-GO
Convenience closing feature ............ 97
Deactivation ..................................... 82
Locking ............................................ 82
Removing the Start/Stop button ... 147
Start function ................................... 83
Unlocking ......................................... 82
Kickdown
Driving tips ....................................1 59
Manual gearshifting ....................... 163
Knee bag .............................................. 53
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating ................. 219
Activating/deactivating (on-
board computer) ............................ 248
Display message ............................ 275
Function/information .................... 218
see Active Lane Keeping Assist
12Index

Parking lampsSwitching on/off ........................... 119
PARKTRONIC
Deactivating/activating ................. 201
Driving system ...............................1 99
Function/notes .............................1 99
Important safety notes .................. 199
Problem (malfunction) ................... 202
Range of the sensors ..................... 199
Warning display ............................. 200
PASSENGER AIR BAG
Display message ............................ 265
Indicator lamps ................................ 47
Problems (malfunction) .................. 265
Perfume atomizer
Operating ....................................... 138
Problem (malfunction) ................... 140
Setting the perfume intensity
(multimedia system) ...................... 303
Vial ................................................ 138
Pets in the vehicle ............................... 67
Phone book
see also Digital Operator's Man-
ual .................................................. 298
Plastic trim (cleaning instruc-
tions) .................................................. 340
PLUG-IN HYBRID operating
Electrical energy generated ........... 228
PLUG-IN HYBRID operation
Automatic engine start (ECO
start/stop function) ....................... 232
Automatic engine switch-off (ECO
start/stop function) ....................... 231
Charge level of the high-voltage
battery ........................................... 227
Displaying the total range and
electric range ................................. 228
Driving tips .................................... 230
DYNAMIC SELECT switch .............. 229
ECO start/stop function ................ 231
Electric motor (power display) ....... 225
Electrical energy generated
(Audio 20) ...................................... 228
Electrical energy generated
(COMAND) ..................................... 228
Energy flow display ........................ 227
Fuel consumption .......................... 228
Fuel consumption (Audio 20) ......... 228 Fuel consumption (COMAND) ........ 228
General notes ................................ 224
Haptic accelerator pedal ................ 230
High-voltage battery (condition of
cha
rge) .......................................... 227
HY

BRID menu ................................ 248
Important safety notes .................. 225
Instrument cluster (power dis-
play) ............................................... 225
Noiseless start ............................... 228
Operating (on-board computer) ..... 227
Operating mode ............................. 226
Overrun mode ................................ 232
Parking .......................................... 232
Power display (electric motor) ....... 225
Problems with SRS (supplemental
restraint system) ............................ 234
Problems with the combustion
engine ............................................ 233
Problems with the hybrid drive
system ........................................... 234
Problems with the Recuperative
Brake System ................................ 233
Pulling away ................................... 228
READY display ............................... 228
Recuperative Brake System ........... 225
Resetting the values (Audio 20) ..... 228
Resetting the values (COMAND) .... 228
Route-based operating strategy ..... 232
Shifting manually ........................... 229
Starting .......................................... 228
When the vehicle is stationary ....... 230
Power washers .................................. 336
Power windows
see Side windows
Pre-entry climate control (via
SmartKey)
Problems (malfunctions) ................ 142
Pre-entry climate control at depar-
ture time
General notes ................................ 142
Pre-entry climate control at time of
departure
Setting departure time ................... 143
Pre-entry climate control via key
General notes ................................ 141
16Index

the vehicle's high-voltage electrical system
checked by a qualified specialist workshop.
The components of the vehicle's high-voltage
electrical system are marked with yellow warn-
ing stickers. The cables of the vehicle's high-
voltage electrical system are orange in color.
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.
Declarations of conformity
Vehicle components which receive
and/or transmit radio waves
USA: "The wireless devices of this vehicle com-
ply with Part 15 of the FCC Rules. Operation is
subject to the two following two conditions: 1)
These devices may not cause harmful interfer-
ence, and 2) These devices must accept any
interference received, including interference
that may cause undesired operation. Changes
or modifications not expressly approved by the
party responsible for compliance could void the
user’s authority to operate the equipment."
Canada: "The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the fol-
lowing two conditions: (1) These devices may
not cause interference, and (2) These devices
must accept any interference, including inter-
ference that may cause undesired operation of
the device."
Diagnostics connection
The diagnostics connection is only intended for
the connection of diagnostic equipment at a
qualified specialist workshop.
GWARNING
If you connect equipment to the diagnostics
connection in the vehicle, it may affect the
operation of the vehicle systems. As a result,
the operating safety of the vehicle could be
affected. There is a risk of an accident.
Do not connect any equipment to a diagnos-
tics connection in the vehicle.
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use
loose floormats and do not place floormats on
top of one another.
!If the engine is switched off and equipment
on the diagnostics connection is used, the
starter battery may discharge.
Connecting equipment to the diagnostics con-
nection can lead to emissions monitoring infor-
mation being reset, for example. This may lead
to the vehicle failing to meet the requirements of
the next emissions test during the main inspec-
tion.
Qualified specialist workshop
An authorized Mercedes-Benz Center is a quali-
fied specialist workshop. It has the necessary
specialist knowledge, tools and qualifications to
correctly carry out the work required on your
vehicle. This is especially the case for work rel-
evant to safety.
Observe the notes in the Maintenance Booklet.
Always have the following work carried out at an
authorized Mercedes-Benz Center:
Rwork relevant to safety
Rservice and maintenance work
Rrepair work
Ralterations, installation work and modifica-
tions
Rwork on electronic components
Rwork on the hybrid drive system
Operating safety31
Introduction
Z

XIf possible, move the vehicle out of the
danger zone:shift the transmission into posi-
tion N.
XRelease the electric parking brake.
XRoll 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.
XSwitch the ignition off.
XShift the transmission to position P.
Depress the electric parking brake
(
Ypage 178).
Secure the vehicle against rolling away
(
Ypage 380).
XTo use the high-voltage switch-off device:
open the hood.
XPress release clip :in the direction of the
arrow and pull it out.
XPull the high voltage switch-off device ;
apart until it engages in the stop position.
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
GWARNING
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.
GWARNING
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.
PLUG-IN HYBRID vehicles: charging the high-
voltage battery (
Ypage 168).
Engine compartment
Before opening the hood:
XApply the electric parking brake.
XShift the transmission to position P.
XSwitch the ignition off.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
XRemove the Start/Stop button from the igni-
tion lock.
XObserve the warning notes on the risk of elec-
tric shock (Ypage 44).
XObserve the warning notices about the hood
(Ypage 330).
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
Brake System (
Ypage 225).
Hybrid vehicles45
Safety
Z

Pre-entry climate control via SmartKey
General notes
The "Pre-entry climate control via SmartKey" function is only available in PLUG-IN HYBRID vehicles.
Before getting in, the driver's seat area or the whole interior can be briefly warmed or ventilated in
advance with the air from the air vents being pre-cooled.
The high-voltage battery must be sufficiently charged before "Pre-entry climate control via Smart-
Key" can be activated.
When the vehicle is pre-cooled, the following functions are activated if required:
RClimate control system
RBlower
RSeat ventilation
When the vehicle is pre-heated, the following functions are activated if required:
RClimate control system
RBlower
RSeat heating
RSteering wheel heating
RExterior mirror heating
RRear window defroster
If you have switched on the perfume atomizer or ionization using the multimedia system, these will be activated together with pre-entry climate control.
Activate the perfume atomizer (
Ypage 303).
Activate ionization (
Ypage 303).
Activating or deactivating "Pre-entry climate control via SmartKey"
Before "Pre-entry climate control via SmartKey" can be activated, you must activate the function via
the multimedia system (Ypage 303).
XTo activate pre-entry climate control via SmartKey: unlock the vehicle with the SmartKey or
KEYLESS-GO.
The climate control functions are activated for up to 5 minutes for pre-heating and pre-cooling.
To deactivate "Pre-entry climate control via SmartKey": "Pre-entry climate control via Smart-
Key" switches off automatically when the engine is started.
The following functions remain active after the engine is started:
RSeat heating (heating)
RSeat ventilation (ventilation)
RPerfume atomizer
RIonization
An activated "Pre-entry climate control via SmartKey" function can be deactivated using the rocker
switch (
Ypage 143).
Operating the climate control systems141
Climate control
Z

Problems with "Pre-entry climate control via SmartKey"
ProblemPossible causes/consequences andMSolutions
"Pre-entry climate con-
trol via SmartKey" can-
not be switched on or
has switched itself off.The condition of charge of the high-voltage battery is under the speci-
fied minimum condition of charge.
XStart the engine when the vehicle is at a standstill.
The engine powers the electric motor. The electric motor operates
as a generator. The high-voltage battery is being charged.
Further information on charging the high-voltage battery via:
Ra mains socket (Ypage 171)
Ra charging station (Ypage 174)
Ra wallbox (Ypage 173)
"Pre-entry climate control via SmartKey" has been started more than
twice with the engine switched off.
XSwitch on the engine and let it run for more than ten seconds.
XTry again to switch on "Pre-entry climate control via SmartKey".
Pre-entry climate control at time of
departure
Important safety notes
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
General notes
The "Pre-entry climate control at departure
time" function is only available in PLUG-IN
HYBRID vehicles.
You can use the "Pre-entry climate control at
departure time" function to cool or heat the
vehicle interior if the engine is not running.
The "Pre-entry climate control at departure
time" function can be activated regardless of
whether or not the vehicle is connected to an
electric power supply. The condition of charge of
the high-voltage battery must be higher than the
specified minimum condition of charge, how-
ever.
When the vehicle is connected to an electric
power supply, priority is given to charging the
high-voltage battery to the specified minimum charge. "Pre-entry climate control at departure
time" is only activated subsequently.
The running time of the "Pre-entry climate con-
trol at departure time" function may be reduced
if:
Rthe vehicle is not connected to an electric
power supply and
Rthe high-voltage battery is not fully charged
With active "Pre-entry climate control at depar-
ture time" the condition of charge of the high-
voltage battery can be reduced, even if the
charge cable connector is connected.
When the vehicle is cooled, the following func-
tions are activated if required:
RClimate control system
RBlower
RSeat ventilation
When the vehicle is heated, the following func-
tions are activated if required:
RClimate control system
RBlower
RSeat heating
RSteering wheel heating
RExterior mirror heating
RRear window defroster
If you have switched on the perfume atomizer or
the ionization using the multimedia system,
these will be activated together with the "Pre-
entry climate control at departure time".
142Operating the climate control systems
Climate control

Hill start assist
Hill start assist helps you when pulling away for-
wards or in reverse on an uphill gradient. It holds
the vehicle for a short time after you have
removed your foot from the brake pedal. This
gives you enough time to move your foot from
the brake pedal to the accelerator pedal and to
depress it before the vehicle begins to roll.
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling away on a level road or on a
downhill gradient.
Rthe transmission is in position N.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
ECO start/stop function (all vehicles
except PLUG‑IN HYBRID)
Introduction
This section describes the ECO start/stop func- tion for all vehicles except PLUG-IN HYBRID
vehicles. Information on the ECO start/stop
function on PLUG-IN HYBRID vehicles
(
Ypage 231).
The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
The engine starts automatically when the driver
wants to pull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
Important safety notes
GWARNING
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.
General notes
:ECO start/stop display
The ECO start/stop function is activated when- ever you start the engine using the SmartKey or
the Start/Stop button.
If the engine has been switched off automati-
cally by the ECO start/stop function, the è
ECO symbol is shown in the multifunction dis-
play.
Mercedes-AMG vehicles: the ECO start/stop
function is only available in drive program C.
Automatic engine switch-off
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range
that is suitable for the system.
Rthe engine is at normal operating tempera-
ture.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is not
fogged up when the air-conditioning system is switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active when
the engine is stopped automatically.
150Driving
Driving and parking

Problems with fuel and the fuel tank
ProblemPossible causes/consequences andMSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
XApply the electric parking brake.
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function or KEYLESS ‑GO
XOpen the driver's door.
The on-board electronics now have status0. This is the same as the
SmartKey having been removed.
XDo not restart the engine under any circumstances.
XConsult a qualified specialist workshop.
The fuel filler flap cannot
be opened.The fuel filler flap is not unlocked.
XUnlock the vehicle (Ypage 81).
XPLUG-IN HYBRID Vehicles: depressurize the fuel tank
(Ypage 165).
The SmartKey battery is discharged or nearly discharged.
XUnlock the vehicle using the mechanical key (Ypage 83).
The fuel filler flap is unlocked, but the opening mechanism is jammed.
XConsult a qualified specialist workshop.
Charging the high-voltage battery
(PLUG-IN HYBRID vehicles)
Important safety notes
GDANGER
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.
GWARNING
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.
GDANGER
If you use incorrectly installed mains sockets or adapters, extension cables or similar to
connect the charging cable to a mains socket,
168Charging the high-voltage battery (PLUG-IN HYBRID vehicles)
Driving and parking