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Multimedia system: X
Select Vehicle { System Set‐
tings { Activate Bluetooth .X
Activate Bluetooth ®
s .
Mobile phone: X
Activate Bluetooth ®
and, if necessary, Blue-
tooth ®
visibility for other devices (see the
manufacturer's operating instructions).
The Bluetooth ®
device names for all of one man-
ufacturer's products might be identical. To
make it possible to clearly identify your mobile
phone, change the device name (see the man-
ufacturer's operating instructions).
If the mobile phone supports the PBAP ( P hone
B ook A ccess P rofile) and MAP ( M essage
A ccess P rofile) Bluetooth ®
profiles, the follow-
ing information will be transmitted after you
connect: R
Phone book R
Call lists R
Text messages and e-mail
i Further information on suitable mobile
phones can be found at: http://
www.mercedes-benz.com/connect
i In the USA, you can get in touch with the
Mercedes-Benz Customer Assistance Center
on 1-800-FOR-MERCedes (1-800-367-6372).
In Canada, you can get in touch with the Cus-
tomer Relations Center on 1-800-387-0100.
Searching for and authorizing (connect-
ing) a mobile phone Before using your mobile phone with the multi-
media system for the first time, you will need to
search for the phone and then authorize (con-
nect) it. Depending on the mobile phone, author-
ization either takes place by means of Secure
Simple Pairing or by entering a passkey. The
multimedia system automatically makes the
procedure that is relevant for your mobile phone
available. The mobile phone is always connec-
ted automatically after authorization. Further
information on using a mobile phone with the
multimedia system (see the Digital Operator's
Manual).
If the multimedia system does not detect your
mobile phone, this may be due to particular
security settings on your mobile phone (see the
manufacturer's operating instructions). Only one mobile phone can be connected to the
multimedia system at any one time.
Searching for a mobile phone
Multimedia system: X
Select Tel/

tem and for the PBAP and MAP Bluetooth ®
profiles. The prompt to confirm may take up
to two minutes to be displayed (see the man-
ufacturer's operating instructions).
Switching between mobile phones If you have authorized more than one mobile
phone, you can switch between the individual
phones.
Multimedia system: X
Select Connect Device .X
Select a mobile phone from the device list.
Media mode
General notes If you wish to play external media sources, the
default display must already be turned on. Fur-
ther information on media mode (see the Digital
Operator's Manual).
The following external media sources can be
used: R
Apple ®
devices (e.g. iPhone ®
)R
USB devices (e.g. USB stick, MP3 player)
( Y
page 292)R
CD R
DVD (COMAND) R
SD cards R
via devices connected by Bluetooth ®
i Information on single CD/DVD drive or DVD
changer (see the Digital Operator's Manual).
Using the device list Multimedia system: X
Select Media { Devices .
The available media sources will be shown.
The ; dot indicates the current setting.X
Select the media source.
Playable files are played. Inserting/removing an SD card Important safety notes
G WARNING
SD cards are small parts. They can be swal-
lowed and cause choking. This poses an
increased risk of injury or even fatal injury.
Keep the SD card out of the reach of children.
If a SD card is swallowed, seek medical atten-
tion immediately.
! If you are no longer using the SD card, you
should remove it and store it outside the vehi-
cle. High temperatures can damage the card.
Inserting an SD card The SD card slot is on the control panel. X
Insert the SD card into the SD card slot until
the SD card engages. The side with the con-
tacts must face downwards.
Removing an SD card X
Press the SD card.
The SD card is ejected. X
Remove the SD card.
Connecting USB devices
There are two USB ports in the stowage space
under the armrest. X
Connect the USB device to the USB port. X
Select the media source ( Y
page 292).292
Operating system
Multimedia system

DEF
Important safet y notesComply wit h th e important safet y note s fo r ser -
vic e products when handlin g DE F ( Y
page 378).
DE F is a water-soluble flui d fo r th e exhaus t gas
aftertreatmen t of diesel engines. It is:R
no t poisonousR
colorles s and odorlessR
no t flammable
Whe n you ope n th e DE F container, small
amount s of ammonia vapor may be released.
Ammoni a vapor s hav e a pungen t odo r and are
particularly irritatin g to th e skin , to mucous
membrane s and to th e eyes . You may experi-
ence a burning sensation in your eyes , nose and
throat . Coughin g and watering of th e eyes are
possible.
Do no t inhale ammonia vapors. Fil l th e DE F tank
only in well-ventilated areas.
Low outsid e temperaturesDE F freezes at a temperature of approximately
12 ‡ (-11 †). The vehicle is delivered from th e
factory equipped wit h a DE F preheatin g system.
Winte r operation can thus be guaranteed eve n
at temperature s belo w 12 ‡ (-11 †).
Additives
! Only use DE F in accordance wit h IS O
22241. Do no t use additive s wit h DE F and do
no t dilut e DE F wit h water. Thi s may destroy
th e BlueTE C exhaus t gas aftertreatmen t sys -
tem.
Purity
! Impurities in DE F (e.g. due to other servic e
products , cleanin g agents or dust ) lead to :R
increase d emission valuesR
damage to th e catalytic converterR
engin e damageR
malfunction s in th e BlueTE C exhaus t gas
aftertreatmen t syste m
Assurin g th e purit y of DE F is particularly impor -
tant wit h respec t to avoidin g malfunction s in th e
BlueTE C exhaus t gas aftertreatmen t system.
If DE F is pumped out of th e DE F tank , e.g. durin g
repair work, it mus t no t be returned to th e tank . The purit y of th e flui d can no longer be guaran-
teed.
Filling capacities Model Tota l capacity
GLS 350 d 4MATIC
10.2 US gal
(38.7 l)
Engin e oil
General notes
! Never use engin e oil or an oil filte r of a spec-
ification other than is necessary to fulfill th e
prescribed servic e intervals. Do no t chang e
th e engin e oil or oil filte r in order to achiev e
longer replacement intervals than those pre -
scribed. You could otherwise cause engin e
damage or damage to th e exhaus t gas after-
treatment.
Follow th e instruction s in th e servic e interval
display regardin g th e oil change. Otherwise ,
you may damage th e engin e and th e exhaus t
gas aftertreatment.
Whe n handlin g engin e oil, observ e th e important
safet y note s on servic e products ( Y
page 378).
The engin e oils are matched to th e performanc e
of Mercedes-Ben z engines and servic e intervals.
You should therefore only use engin e oils and oil
filters that are approved fo r vehicles wit h main -
tenance systems .
Fo r a list of approved engin e oils and oil filters ,
consult an authorized Mercedes-Ben z Center.
Or visit th e websit e
http://bevo.mercedes-benz.co m.
The table shows which engine oils have been
approved for your vehicle.Service products and filling capacities 381
Technical data Z