117 Controls in detail
Control system
Control system
The control system is activated as soon as
the SmartKey in the starter switch is
turned to position1. The control system
enables you to
call up information about your vehicle
change vehicle settings
For example, you can use the control sys-
tem to find out when your vehicle is next
due for service, to set the language for
messages in the instrument cluster
display, and much more.
The control system relays information to
the multifunction display.
Multifunction display
The multifunction display consists of the
display fields in the speedometer and the
tachometer. In its default state, the left
display field shows the outside tempera-
ture and main odometer, while the trip
odometer and the clock appears in the
right display field. This default setting is
referred to as the standard display.
Standard display
1Main odometer
2Outside temperature (
page 132)
3Current gear selector lever
position/gear range
4Trip odometer
5Automatic transmission shift program
mode
6Clock
Warning!G
A driver’s attention to the road and traffic
conditions must always be his/her primary
focus when driving.
For your safety and the safety of others, se-
lecting features through the multifunction
steering wheel should only be done by the
driver when traffic and road conditions
permit it to be done safely.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approximate-
ly 14 m) every second.
124 Controls in detail
Control system
RACETIMER
The RACETIMER allows you to time and
save driving stretches in hours, minutes
and seconds.
Press button è or ÿ repeatedly
until you see the 722 Edition menu.
Press button j repeatedly until you
see the RACETIMER.1Lap
2RACETIMER
3Gear indicatorStarting the RACETIMER
Press button æ.
The timer starts.
Displaying intermediate time
Press button ç while the timer is
running.
The intermediate time is shown for
5 seconds.
Stopping the RACETIMER
Press button æ.
The timer stops.
Warning!G
The RACETIMER feature is only for use on
roads and in conditions where high speed
driving is permitted. Racing on public roads
is prohibited under all circumstances and
the driver is and must always remain
responsible for following posted speed
limits.
iYou can start the RACETIMER when the
engine is running or the starter switch is in
position2 (
page 40).
iWhile the RACETIMER is being displayed,
you cannot adjust the volume using
buttonsæ or ç.
iWhen you stop the vehicle and turn the
SmartKey to position 1 (
page 40), the RACE-
TIMER stops timing. Timing is resumed when you
switch the ignition back on (
page 40) or
restart the engine (
page 47) and then press
the æbutton.
128 Controls in detail
Control system
Vehicle status message memory menu
Use the vehicle status message memory
menu to scan malfunction and warning
messages that may be stored in the
system. Such messages appear in the
multifunction display and are based on
conditions or system status the vehicle’s
system has recorded.
The vehicle status message memory menu
only appears if there are any messages
stored.
Press buttonè orÿ repeatedly
until the vehicle status message
memory appears in the right multi-
function display.
If the vehicle status message memory
menu does not appear, no messages
have been stored.
If conditions have occurred causing status
messages to be recorded, the number of
messages appears in the right multi-
function display:
1Number of recorded status messages
Press button k or j.
The stored messages will now be
displayed in the order in which they
have occurred. For malfunction and
warning messages, see “Vehicle status
messages in the multifunction display”
(
page 314).
Should the vehicle’s system record any
conditions while driving, the number of
messages will reappear in the multifunc-
tion display when the SmartKey in the
starter switch is turned to position0 or
removed from the starter switch.
Warning!G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and/or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Center to address the malfunction and
warning messages (
page 314).
iThe vehicle status message memory will be
cleared when you turn the SmartKey in the start-
er switch to position1 or2. You will then only
see high-priority messages (
page 314).
141 Controls in detail
Control system
TEL menu
You can use the functions in the
TEL menu
to operate your telephone, provided it is
connected to a hands-free system and
switched on.
Switch on the telephone and the radio.
Press button ÿ or è on the
steering wheel repeatedly until you see
the
TEL menu in the left multifunction
display.Which messages will appear in the right
multifunction display field depends on
whether your telephone is switched on or
off:
If the telephone is off, the message in
the multifunction display is:
TEL OFF.
If the telephone is on:
The telephone will then search for a
network. During this time the right
multifunction display is empty.
As soon as the telephone has found a
network,
READY is indicated in the right
multifunction display.
1Signal strength
This standby message indicates that your
telephone is ready for use and you can
operate it using the control system.
Warning!G
A driver’s attention to the road must always
be his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call. If you choose to use the tele-
phone while driving, please use the
hands-free device and only use the tele-
phone when weather, road, and traffic con-
ditions permit.
Some jurisdictions prohibit the driver from
using a mobile telephone while driving a
vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
145 Controls in detail
Audio system
Audio system
Audio and telephone, operation
These instructions are intended to help
you become familiar with your
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description
of the user functions.Operating safetyLocation of the audio system
The audio system control panel is located
behind a cover in the upper part of the cen-
ter console.
1Cover
Briefly press on the lower part of
cover1.
The cover opens automatically.
Warning!G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still and operate the system only when road
and traffic conditions permit. Always pay full
attention to traffic conditions first before
operating system controls while driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car is cover-
ing a distance of 44 feet (approximately
14 m) every second.
Warning!G
Any alterations made to electronic compo-
nents can cause malfunctions.
The radio, amplifier, CD changer and
telephone are interconnected. When one of
the components is not operational or has
not been removed/replaced properly, the
function of other components may be im-
paired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.
155 Controls in detail
Audio system
Track selection
Press theTRK key.
The current track will be displayed as
SIDE 1 or SIDE 2.
You can switch sides at any time.
The side will be changed automatically
at the end of the tape.Cassette eject
Press eject button3.
The display folds down and the cas-
sette is ejected. The system will switch
back to radio mode automatically.
Fold display panel back up and press
gently on the display panel frame to
lock it.Track search
Track search forward
Pressf button.
SEEK FWD will appear in the display.
Track search will run the tape forward
to the start of the next track and switch
to Play.
iA warning signal will sound after 20 seconds
if the display panel is left in the down position.
Fold display panel back up. If the display panel is
not closed, a warning signal will sound and the
radio will be muted.
!Do not press directly on the display face.
Otherwise the display will be damaged.
iThe cassette will not be ejected when the
system is switched off or switched to another
operating mode.
iThe beginning of a track can only be found if
there is pause of at least 4 seconds between
tracks.
158 Controls in detail
Audio system
CD changer operation
General notes
Should excessively high temperatures oc-
cur while in CD mode,
CD TEMP HIGH will
appear in the display and the CD will be
muted. The unit will then switch back to
the last operating mode used until the tem-
perature has decreased to a safe operating
level.
Should excessively low temperatures
occur while in CD mode,
CD TEMP LOW will
appear in the display, but the CD will
continue to play.
Handle CDs carefully to prevent interfer-
ence during playback. Avoid fingerprints
and dust on CDs. Do not write on CDs or
apply any labels or other material to them.Only use original CDs. Using copied CDs
may create problems during playback.
Clean CDs from time to time with a com-
mercially available cleaning cloth. Do not
use solvents, anti-static sprays, etc. for
cleaning. Replace the CD in its case after
use. Protect CDs from heat and direct
sunlight.
Only use CDs, which bear the label shown
and that conform to the compact disc
digital audio standard (IEC 60908). You
can therefore only use CDs with a
maximum thickness of 1.3 mm.
iUse of CDs which do not meet this standard
may cause damage to the CD changer. Do not
play single-CDs (80 mm) with an adapter.
Your CD drive has been designed to play CDs
which correspond to the IEC 60908 standard.
If you insert thicker data carriers, e.g. ones that
have data on both sides (one side with DVD data,
the other side with audio data), they cannot be
ejected and will damage the drive.
Warning!G
The CD changer is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.
162 Controls in detail
Audio system
Telephone operationVarious car telephone functions and oper-
ating steps for the car telephone can be
performed and displayed via the audio
system.
Further operating instructions not covered
here can be found in the operating
instructions for the multifunction steering
wheel and the telephone.
Switching on the telephone
Pressh button.
If you have programmed an unlock
code for the telephone, you must enter
the code now.
Enter the code using buttons4
toM.
If necessary, correct number entered
with the
CLR key. Press key briefly to
delete the last digit entered; press key
and hold to delete the complete
number.
Press theOK key after entering correct
code.
The telephone is unlocked. If you have
entered the wrong code, you must re-
peat the entering procedure with the
correct code.
Switching off the telephone
Pressh button repeatedly until
PHONE OFF appears in the display.
The receiving symbol in the display
disappears.
Adjusting the volume
Turn control knoba during tele-
phone operation.
The volume increases or decreases de-
pending on the direction in which the
knob is turned.
Warning!G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his/her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a
telephone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
mobile telephone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet
(approximately 14 m) every second.
1Observe all legal requirements.
iThe volume can be adjusted separately for
the telephone and radio.