service indicator MERCEDES-BENZ C-Class COUPE 2014 CL204 Owner's Manual

1, 2, 3 ...
115 Vsocket ...................................... 253
12 Vsocket
see Sockets
4MATIC (permanent four-wheel
drive) .................................................. 169A
ABS (Anti-lock Braking System) Display message ............................ 207
Function/notes ................................ 62
Important safety notes ....................62
Warning lamp ................................. 234
Activating/deactivating cooling
with air dehumidification .................123
Active Blin dSpot Assist
Activating/deactivating (on-
board computer) ............................ 198
Display message ............................ 222
Function/informatio n.................... 180
Active Driving Assistance package .180
Active Lane Keeping Assist Activating/deactivating (on-
board computer) ............................ 198
Display message ............................ 221
Function/informatio n.................... 183
ADAPTIVE BRAKE ................................. 67
Adaptive Highbeam Assist Display message ............................ 217
Function/notes ............................. 110
Switching on/off ...................110, 111
Switching on/off (on-board
computer) ...................................... 200
Additives (engine oil) ........................336
Airb ags
Display message ............................ 213
Front air bag (driver, front
passenger )....................................... 42
Important safety notes ....................40
Knee bag .......................................... 42
PASSENGER AIR BAG OFF
indicator lamp .................................. 45
Pelvis airb ag................................... 44
Safety guidelines ............................. 39
Side impact airb ag.......................... 43
Windo wcurtain air bag .................... 44Air-conditioning system
see Climate control
Airv ents
Glove box ....................................... 128
Important safet ynotes .................. 127
Rea r............................................... 128
Setting ........................................... 127
Setting the center air vents ...........128
Setting the side air vents ...............128
Alarm system
see ATA (Anti-Theft Alarm system)
AMG menu (on-board computer) .....203
Anti-loc kbraking system
see ABS (Anti-lock Braking System)
Anti-theft alarm system
see ATA (Anti-Theft Alarm system)
Ashtray ............................................... 252
Assistance display (on-board
computer) .......................................... 197
Assistance menu (on-board
computer) .......................................... 197
ASSYST PLUS Displaying a service message ........268
Hiding a service message ..............268
Notes ............................................. 268
Resetting the service interval
displa y........................................... 268
Service message ............................ 268
Special service requirements ......... 269
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................69
Function .......................................... .69
Switching off the alarm ....................69
ATTENTIO NASSIST
Activating/deactivating .................198
Display message ............................ 220
Function/notes ............................. 176
Audio menu (on-board
computer) .......................................... 194
Audio system see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop 4
Index

To ensure that the vehicle is secured against
rolling away unintentionally:
R the parking brake must be applied.
R the transmission must be in position Pand
the SmartKey must be removed from the
ignition lock.
R on uphill or downhill gradients, the front
wheels must be turned towards the curb. Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to
neutral position Nwhen you switch off the
engine. The vehicle may roll away.T here is a
risk of an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle from rolling away by applying the
parking brake.
Vehicles with automatic transmission X
Apply the parking brake firmly.
X Shift the transmission to position P.
Using the SmartKey
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
i The SmartKey can only be removed if the
transmission is in position P.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 132).
The engine stops and all the indicator
lamps in the instrumentc lustergo out.
i When the driver's door is closed, this
corresponds to key position 1. When the
driver's door is open, this corresponds to
key position 0:"key removed".
If you try to switch off the engine when the
transmission is not in position P, a messageappears in the multifunctio
ndisplay. Asignal
sounds. Parking brake
G
WARNING
If you must brake the vehicle with the parking
brake, the braking distanc eis considerably
longer and the wheels could lock. There is an
increased danger of skidding and accidents.
Only use the parking brake to brake the
vehicle when the service brake is faulty. Do
not apply the parking brake too firmly. If the
wheels lock, release the parking brake until
the wheels begin turning again. G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's
equipment. There is a risk of an accident and
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
If you brake the vehicle with the parking
brake, the brake lamps will not light up. Parking
149Driving and parking Z

X
To apply: depress parking brake 0003firmly.
Whe nthe engine is running, the 000B(USA
only) or 0005(Canada only) indicator lamp
lights up in the instrumentc luster.
X To release: depress the brake pedal and
keep it depressed.
X Pull release handle 0002.
When the ignition is switched on or the
engine is running, the 000B(USA only) or
0005 (Canada only) indicator lamp goes out
in the instrument cluster. Parking the vehicle for
along period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharging.
X Connecting a trickle charger.
i You can obtain information about trickle
chargers from a qualified specialist
workshop.
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. Driving tips
General driving tips
Important safety notes G
WARNING
If you switch off the ignitio nwhile driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.Y ou will require considerably
more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving. G
WARNING
If you operate mobile communication
equipment 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 this equipment when the vehicle
is stationary.
Observe the legal requirements for the
country in which you are driving. Some
jurisdictions prohibit the driver from using a
mobile phone while driving a vehicle.
If you make a call while driving, always use
hands-free mode. Only operate the telephone
when the traffic situation permits. If you are
unsure, pull over to a safe location and stop
before operating the telephone.
Bear in mind that at a speed of only 30 mph
(approximately 50 km/h), the vehicle covers
a distance of 44 ft (approximately 14 m) per
second.
Drive sensibly –save fuel Observe the following tips to save fuel:
X
The tires should always be inflated to the
recommended tire pressure.
X Remove unnecessary loads.
X Remove roof racks whe nthey are not
needed.
X Warm up the engine at low engine speeds.
X Avoid frequent acceleration or braking.
X Have all maintenance work carried out as
indicated by the service intervals in the
Maintenance Booklet or by the service
interval display.
Fuel consumption also increases when
driving in cold weather, in stop-start traffic
and in hilly terrain.
Drinking and driving G
WARNING
Drinking and driving and/or taking drugs and
driving are very dangerous combinations. 150
Driving tipsDriving and parking

Problems with the 115
Vpower socket Problem Possible causes/consequences and
0001 Solutions
The warning lamp on
the 11
5Vpower socket
is not lit. The on-board voltage is too low because the battery is too weak.
X
Start the engine.
or
X Charge the battery (Y page 286).
If the indicator lamp still does not light up:
X Visit a qualified specialist workshop. The temperature of the DC/AC converter is temporarily too high.
X Remove the electronic device connector from the 115 V socket.
X Let the DC/AC converter cool down.
If the indicator lamp still does not light up after cooling down the
converter:
X Visit a qualified specialist workshop. You have connected a small electronic device that has a constant
nominal power of less than 150 W, but a very high switch-on
current. This device will not work. If you connect such a device,
the 115
Vpower socket will not supply it with power.
X Connect a suitable device. mbrace
General notes You must have a license agreement to
activate the mbrace service. Make sure that
your system is activated and operational. To
log in, press the 0009MB Info call button. If
any of the steps mentioned are not carried
out, the system may not be activated.
If you have questions about the activation,
contact one of the following telephone
hotlines:
R USA: Mercedes-Benz Customer Assistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367 Shortly after successfully registering with the
service, a user ID and password will be sent
to you by post.
USA only: you can use this password to log
onto the mbrace area under "Owners Online"
at http://www.mbusa.com.
The system is available if:
R it has been activated and is operational
R the corresponding mobile phone network
is available for transmitting data to the
Customer Center
R a service subscription is available
R the starter battery is sufficiently charged
i Determining the location of the vehicle on
a map is only possible if:
R GPS reception is available.
R the vehicle position can be forwarded to
the Customer Assistance Center. Features
255Stowage and features Z

The mbrace system
To adjus
tthe volume during a call, proceed
as follows:
X Press the 0009or000A button on the
multifunction steering wheel.
or
X Use the volume controller of the audio
system/COMAND.
The system offers various services, e.g:
R Automatic and manual emergency call
R Roadside Assistance call
R MB Info call
USA only: you can find information and a
description of all available features under
"Owners Online" at http://www.mbusa.com.
System self-test After you have switched on the ignition, the
system carries out a self-diagnosis.
Am
alfunction in the system has been
detected if one of the following occurs:
R The indicator lamp in the SO Sbutton does
not come on during the system self-test.
R The indicator lamp in the 0007Roadside
Assistance butto ndoes not light up during
self-diagnosis of the system.
R The indicator lamp in the 0009MB Info call
button does not light up during self-
diagnosis of the system.
R The indicator lamp in one or more of the
following buttons continues to light up red
after the system self-diagnosis:
- SOS button
- 0007 Roadside Assistance call button
- 0009 MB Info call button
R After the system self-diagnosis, the
Inoperative or
Service Not Activated message appears in the
multifunction display.
If a malfunction is indicated as outlined
above, the system may not operate as expected. In the event of an emergency, help
will have to be summoned by other means.
Have the system checked at the nearest
authorized Mercedes-Benz Center or contact
the following service hotlines:
R USA: Mercedes-Benz Customer Assistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
Emergency call Important safety notes
G
WARNING
It can be dangerous to remain in the vehicle,
even if you have pressed the SOS button in an
emergency if:
R you see smoke inside or outside of the
vehicle, e.g. if there is a fire after an
accident
R the vehicle is on a dangerous section of
road
R the vehicle is not visible or cannot easily be
seen by other road users, particularly when
dark or in poor visibility conditions
There is a risk of an accident and injury.
Leave the vehicle immediately in this or
similar situations as soon as it is safe to do
so. Move to a safe location along with other
vehicle occupants. In such situations, secure
the vehicle in accordance with national
regulations, e. g. with a warning triangle.
You must have a license agreement to
activate the mbrace service. Make sure that
your system is activated and operational. To
register, press the 0009MB Info call button.
If any of the steps mentioned are not carried
out, the system may not be activated. 256
FeaturesStowage and features

If you have questions aboutt
he activation,
contact one of the following telephone
hotlines:
R USA: Mercedes-Ben zCustome rAssistance
Center at
1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007
R Canada: Customer Service at
1-888-923-8367
General notes
An emergency call is dialed automatically if
an air bag or Emergency Tensioning Device is
triggered.
i You cannot end an automatically
triggered emergency call yourself.
An emergency call can also be initiated
manually.
As soon as the emergency call has been
initiated, the indicator lamp in the SOS button
flashes. The multifunction display shows the
Connecting Call message.
The audio output is muted.
Once the connection has been made, the
Call Connected message appears in the
multifunction display.
All important information on the emergency
is transmitted, for example:
R Current location of the vehicle (as
determined by the GPS system)
R Vehicle identification number
R Information on the severity of the accident
Shortly after the emergency call has been
initiated, a voice connection is automatically
established between the Customer
Assistance Center and the vehicle occupants.
R If the vehicle occupants respond, the
Mercedes-Benz Customer Assistance
Center attempts to get more information
on the emergency.
R If there is no response from the vehicle
occupants, an ambulance is immediately
sent to the vehicle. If no voice connection can be established to
the Mercedes-Benz Customer Assistance
Center, the system has been unable to initiate
an emergency call.
This can occur, for example, if the relevant
mobile phone network is not available. The
indicator lamp in the SOS button flashes
continuously.
The
Call Failed message appears in the
multifunction display and must be confirmed.
In this case, summon assistance by other
means.
Making an emergency call X
To initiate an emergency call
manually: press cover 0002briefly to open.
X Press SOS button 0003briefly.
The indicator lamp in SOS button 0003
flashes until the emergency call is
concluded.
X Wait for a voice connection to the
Mercedes-Benz Customer Assistance
Center.
X After the emergency call, close cover 0002.
i If the mobile phone network is
unavailable, mbrace will not be able to
make the emergency call. If you leave the
vehicle immediately after pressing the SOS
button, you will not know whether mbrace
placed the emergency call. In this case,
always summon assistance by other
means. Features
257Stowage and features Z

Roadside Assistance button
X
Press Roadside Assistance button 0002.
This initiates a call to the Mercedes-Benz
Custome rAssistance Center.
The indicator lamp in Roadside Assistance
button 0002flashes while the call is active.
The multifunction display shows the
Connecting Call message. The audio
output is muted.
If a connection can be made, the CallConnected message appears in the
multifunction display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
R Current location of the vehicle
R Vehicle identification number
i The audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
Av oice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
From the vehicle remote malfunction
diagnosis, the Mercedes-Benz Customer
Assistance Center can ascertain the nature of
the problem (Y page 261).
The Mercedes-Benz Customer Assistance
Center either sends a qualified Mercedes- Benz technician or makes arrangements for
your vehicle to be transported to the nearest
authorized Mercedes-Benz Center.
You may be charged for services such as
repair work and/or towing.
Further details are available in your mbrace
manual.
i
The system has not been able to initiate
a roadside assistance call, if:
R the indicator lamp for Roadside
Assistance call button 0002is flashing
continuously.
R no voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone
network is not available, for example.
The Call Failed message appears in the
multifunction display.
X To end acall: press the 000Abutton on the
multifunctio nsteering wheel.
or
X Press the corresponding button for ending
a phone call on the audio syste moron
COMAND.
MB Info call button X
Press MB Info call button 0002.
This initiates a call to the Mercedes-Benz
Custome rAssistance Center.
The indicator lamp in MB Info call
button 0002flashes while the connection is
being made. The multifunction display 258
FeaturesStowage and features

shows the
Connecting Call message.
The audio system is muted.
If a connection can be made, the CallConnected message appears in the
multifunction display.
If a mobile phone network and GPS reception
are available, the system transfers data to the
Mercedes-Benz Customer Assistance Center,
for example:
R Current location of the vehicle
R Vehicle identification number
i The audio system or COMAND display
indicates that a call is active. During the
call, you can change to the navigation menu
by pressing the NAVI button on COMAND,
for example.
Voice output is not available.
Av oice connection is established between
the Mercedes-Benz Customer Assistance
Center and the vehicle occupants.
You receive information about operating your
vehicle, about the nearest authorized
Mercedes-Benz Center and about other
products and services from Mercedes-Benz.
USA only: you can find further information on
the mbrace system under "Owners Online" at
http://www.mbusa.com.
i The system has not been able to initiate
an MB Info call, if:
R the indicator lamp in MB Info call
button 0002is flashing continuously.
R no voice connection to the Mercedes-
Benz Customer Assistance Center was
established.
This can occur if the relevant mobile phone
network is not available, for example.
The Call Failed message appears in the
multifunction display. X
To end acall: press the 000Abutton on the
multifunctio nsteering wheel.
or
X Press the corresponding button for ending
a phone call on the audio syste moron
COMAND.
Call priority When service calls are active, e.g. Roadside
Assistance or MB Info calls, an emergency
call can still be initiated. In this case, an
emergency call will take priority and override
all other active calls.
The indicator lamp of the respective button
flashes until the call is ended.
An emergency call can only be terminated by
the Mercedes-Ben zCustome rAssistance
Center.
All other calls can be ended by pressing:
R the 000A button on the multifunction
steering wheel
R the corresponding button on the audio
system or on COMAND for ending a
telephone call
i When a call is initiated, the audio system
is muted. The mobile phone is no longer
connected to COMAND. However, if you
want to use your mobile phone, do so only
when the vehicle is stationary and in a safe
location.
Downloading destinations in COMAND Downloading destinations
Destination Download gives you access to a
data bank with over 15 millionP
oints of
Interest (POIs). These can be downloaded on
the navigation system in your vehicle. If you
know the destination, the address can be
downloaded. Alternatively, you can obtain the
location of Points of Interest (POIs)/
important destinations in the vicinity.
You are prompted to confirm route guidance
to the address entered. Features
259Stowage and features Z

Always make sure tha
tneither you nor the
battery is electrostatically charged. Abuild-
up of electrostati ccharge can be caused, for
example:
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
carpet or other synthetic materials
R if you wipe the battery with a cloth G
WARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with
water and seek medical attention. G
WARNING
During the charging process, a battery
produces 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
contact with vehicle parts.
R Never place metal objects or tools on a
battery.
R It is important that you observe the
described 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
disconnecting the jumper cables.
R Never connect or disconnect the battery
terminals while the engine is running. 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. 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
specialist workshop or a
special collection point for
used batteries.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the
Maintenance Booklet or contact a qualified
specialist workshop for more information.
! You should have all work involving the
battery carried out at aqualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery
yourself, make sure that:
R you switch off the engine and remove the
SmartKey. On vehicles with KEYLESS-
GO, ensure that the ignition is switched
off .C heck that all the indicator lamps in
the instrumentc luster are off.Otherwise,
electroni ccomponents, such as the
alternator, may be damaged.
R you first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps. Battery (vehicle)
285Breakdown assistance Z

recommended tire pressure for yourv
ehicle
when adjusting the tire pressure
(Y page 300). 0002
Example: maximum permissible tire
pressure
i The actual values for tires are vehicle-
specific and may deviate from the values in
the illustration. Checking the tire pressures
Important safety notes Observe the "tire pressure information"
section (Y
page 300).
Information on air pressure for the tires on
your vehicle can be found:
R on the vehicle's Tire and Loading
Information placard on the B-pillar
R on the tire pressure label on the fuel filler
flap
R in the "Tire pressure information" section
Checking tire pressures manually To determine and set the correct tire
pressure, proceed as follows:
X Remove the valve cap of the tire that is to
be checked.
X Press the tire pressure gauge securely onto
the valve.
X Read the tire pressure and compare it with
the recommended value on the Tire and
Loading Information placard on the
B-pillar on the driver's side of your vehicle. X
If necessary, increase the tire pressure to
the recommended value (Y page 300).
X If the tire pressure is too high, release air
by pressing down the metal pin in the valve
using the tip of a pen, for example. Then,
chec kthe tire pressure again using the tire
pressure gauge.
X Screw the valve cap onto the valve.
X Repeatt hese steps for the other tires. Tire pressure loss warning system
(Canada only)
General notes While the vehicle is in motion, the tire
pressure loss warning system monitors the
set tire pressure using the rotational speed of
the wheels. This enables the system to detect
significant pressure loss in a tire. If the speed
of rotation of a wheel changes as a result of
a loss of pressure, a corresponding warning
message will appearint
he multifunction
display.
You can recognize the tire pressure loss
warning by the Run Flat Indicator Active Press 'OK' to Restart message
which appears in the Service menu of the
multifunction display. Information on the
message display can be found in the
"Restarting the tire pressure loss warning
system" section (Y page 304).
Important safety notes The tire pressure warning system does not
warn you of an incorrectly set tire pressure.
Observe the notes on the recommended tire
pressure (Y
page 300).
The tire pressure loss warning does not
replace the need to regularly check the tire
pressure. An even loss of pressure on several
tires at the same time cannot be detected by
the tire pressure loss warning system.
The tire pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tire is penetrated by a foreign object. In the Tire pressure
303Wheels and tires Z