2015 MERCEDES-BENZ C-Class SEDAN battery location

Display messages
Possible causes/consequences and
0050
0050Solutions 00AF
Replace Replace
Key
KeyBattery
Battery The SmartKey batteries are discharged.
X Change the batteries (Y page 84).00AF
Don't Forget Your Don't Forget Your
Key Key The SmartKey is not in the ignition lock. You have opened the
driver's door with the engine switched off.
This display message is displayed for a maximum of 60 seconds
and is simply a reminder.
X Take the SmartKey with you when you leave the vehicle. 00AF
Key Not Detected Key Not Detected
(white display mes-
sage) The SmartKey is currently undetected.
X Change the location of the SmartKey in the vehicle.
If the SmartKey still cannot be detected:
X Insert the SmartKey into the ignition lock and turn it to the
desired position. 00AF
Key Not Detected Key Not Detected
(red display message) The SmartKey is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 174).
X Locate the SmartKey.
X Press 0076on the steering wheel to confirm the display mes-
sage. Because there is interference from a strong source of radio waves,
the SmartKey is not detected whilst the engine is running.
A warning tone also sounds.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 174).
X Operate the vehicle with the SmartKey in the ignition lock. 00AF
Remove Remove
'Start'
'Start' But‐
But‐
ton and Insert Key
ton and Insert Key The SmartKey is continually undetected.
The SmartKey detection function has a temporary malfunction or
is faulty. A warning tone also sounds.
X Insert the SmartKey into the ignition lock and turn it to the
desired position.
X Visit a qualified specialist workshop. Display
messages
283On-board computer and displays Z

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 hot-
lines:
Mercedes-Benz Customer Assistance Center
at 1-800-FOR-MERCede s (1-800-367-6372)
or 1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will
be sent to you by mail. You can use this pass-
word to log onto the mbrace area under "Own- ers 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 Cus-
tomer Center
R a service subscription is available
R the starter battery is sufficiently charged
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.
The mbrace system To adjust the volume during a call, proceed as
follows:
X Press the 0081or0082 button on the mul-
tifunction steering wheel.
or
X Use the COMAND/Audio 20 volume con-
trol.
The system offers various services, e.g.: R Automatic and manual emergency call
R Roadside Assistance call
R MB Info call
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.
A malfunction in the system has been detec-
ted if one of the following occurs:
R The indicator lamp in the SOS button does
not come on during the system self-test.
R The indicator lamp in the 0052Roadside
Assistance button does not light up during
self-diagnosis of the system.
R The indicator lamp in the 00D9MB Info call
button does not light up during self-diag-
nosis 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
- 0052 Roadside Assistance call button
- 00D9 MB Info call button
R The Inoperative
Inoperative or theService Not Service Not
Activated
Activated message appears in the multi-
function display after the system self-diag-
nosis.
If a malfunction is indicated as outlined
above, the system may not operate as expec-
ted. 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:
Mercedes-Benz Customer Assistance Center
at 1-800-FOR-MERCedes (1-800-367-6372)
or 1-866-990-9007 Features
311Stowage an d features Z

As soon as the vehicle has been loaded:
X Prevent the vehicle from rolling away by
applying the electric parking brake.
X Shift the automatic transmission to posi-
tion P.
X Turn the SmartKey to position 0in the igni-
tion lock and remove it.
X Secure the vehicle. Notes on 4MATIC vehicles
! Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised,
as doing so will damage the transmission.
Vehicles with 4MATIC may either be towed
away with both axles on the ground or be loa- ded up and transported.
If the vehicle's transmission, front, or rear
axle is damaged, have the vehicle transported
on a truck or trailer.
In the event of damage to the electrical
system: if the battery is defective, the auto-
matic transmission will be locked in position
P. To shift the automatic transmission to posi-
tion N, you must provide power to the vehi-
cle's electrical system in the same way as
when jump-starting (Y page 349).
Have the vehicle transported on a transporter
or trailer. Tow-starting (emergency engine
starting)
! Vehicles with automatic transmission
must not be tow-started. You could other-
wise damage the automatic transmission.
i You can find information on "Jump-start-
ing" under (Y page 349). Fuses
Important safety notes
G
WARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper- age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specified
new fuses having the correct amperage.
Blown fuses must be replaced with fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist workshop, e.g. an authorized
Mercedes-Benz Center.
! Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse rating for the system
concerned. Otherwise, components or sys-
tems could be damaged.
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the compo- nents on the circuit and their functions stop
operating. Before changing a fuse
X Secure the vehicle against rolling away
(Y page 174).
X Switch off all electrical consumers.
X Make sure that the ignition is switched off
(Y page 157).
or
X When using the SmartKey, turn the Smart-
Key to position 0in the ignition lock and
remove it (Y page 157).
All indicator lamps in the instrument cluster
must be off. 354
FusesRoadside Assistance