Page 77 of 769

76 Safety and SecurityDriving safety systems
When the distance to the forward vehicle is 
too small, the distance warning lampl 
comes on in the instrument cluster. If you 
approach the forward vehicle very quickly, 
you will hear a warning tone.
If you do not apply the brakes yourself or 
maneuver around a sensed obstacle, the 
vehicle will automatically initiate light 
braking. PRE-SAFE
® (page 56) is activat-
ed when the distance to the vehicle ahead 
at your current speed is so close that 
PRE-SAFE
® Brake will not be capable of 
slowing the vehicle sufficiently.
i
Canada only:
This device complies with RSS-210 of Industry 
Canada. Operation is subject to the following 
two conditions:
(1) This device may not cause interference, and
(2) this device must accept any interference re-
ceived, including interference that may 
cause undesired operation of the device.
Removal, tampering, or altering of the device will 
void any warranties, and is not permitted. Do not 
tamper with, alter, or use in any non-approved 
way.
Any unauthorized modification to this device 
could void the user’s authority to operate the 
equipment.
Warning!
G
PRE-SAFE
® Brake will only respond with 
brake assistance if it has clearly detected an 
object. Detection can be impeded by
dirty or covered sensors
snowfall or heavy rain
disturbance from other radar sources
strong radar reflection such as in park-
ing garages
PRE-SAFE
® Brake uses radar signals that 
are not reflected well by narrow objects and 
absorptive materials. For this reason BAS 
Plus will not react to
persons and animals
approaching traffic or cross-traffic
PRE-SAFE
® Brake may not detect narrow ve-
hicles driving in front of you, such as motor-
cycles and vehicles driving offset from your 
vehicle center. 
     
        
        Page 79 of 769

78 Safety and SecurityDriving safety systemsPRE-SAFE
® Brake can react to stationary 
obstacles such as standing or parked vehi-
c le s a t roa d s pe eds  of  up to ap proxim a tel y 
40 mph (70 km/h).
Activating and deactivating: Activate 
or deactivate PRE-SAFE
® Brake using 
the instrument cluster control system 
(
page 298).
After the function has been activated, 
indicator : appears on the 
left-hand side of the multifunction dis-
play.PRE-SAFE
® Brake does not always clearly 
interpret complex traffic situations. If a vi-
sual and/or acoustic warning is issued in 
an uncritical driving situation, or if the ve-
hicle brakes lightly, you can interrupt the 
PRE-SAFE® Brake maneuver by
pressing down all the way on the accel-
erator or using kickdown
releasing the brake pedal
The PRE-SAFE
® Brake maneuver is termi-
nated immediately when
you avoid the obstacle by evasive 
steering
you drive less than 9 mph (15 km/h)
an obstacle can no longer be identified 
ahead of you
the system no longer senses the risk of 
a collisionAfter a hard collision or damage to the 
front of the vehicle from an accident, have 
the settings and operation of the radar 
sensors checked by an authorized 
Mercedes-Benz Center.
Warning!
G
If you do not receive visual or acoustic warn-
ing signals, PRE-SAFE
® Brake has either not 
recognized the collision risk, has been deac-
tivated or is malfunctioning. Apply the 
brakes yourself to avoid a collision.
i
PRE-SAFE
® Brake will remain passive while 
DISTRONIC Plus* is switched on (
page 443). 
     
        
        Page 90 of 769
89 Control systems
COMAND introduction
Video DVD
Page
Vehicle
Page
Commands/menusVideo DVD
128
Exterior Lighting Delayed Switch-off
260
Submenu overview
130
Locator Lighting
261
Switching to video DVD mode
130
Exterior Mirror Convenience Settings
262
Pause playback
132
Automatic Locking
263
DVD menu
134
Easy Entry/Exit Feature
264
Video AUX
126
Interior Lighting Delayed Switch-off
266
Interior Ambient Light
265
Rear Window Sunshade
267
Trunk Opening-height Restriction*
268 
     
        
        Page 117 of 769

116 Control systemsCOMAND audio CD/audio DVD/MP3Notes about handling CDs/DVDs 
Only hold discs by the edge.
Handle discs carefully to prevent play-
back problems.
Avoid getting scratches, fingerprints 
and dust on discs.
Clean discs from time to time with a 
commercially-available cleaning cloth. 
Do not wipe them with a circular mo-
tion, but only in straight lines from the 
center outwards.
Only use a pen designed for such a pur-
pose to label discs.
Place discs back in their boxes after 
use.
Protect discs from heat and direct sun-
light.
Inserting CDs and DVDs  Loading the CD/DVD changer
The CD/DVD changer can hold up to a to-
tal of 6 audio CDs or DVDs.
1Disc slot
2Load button (all magazine trays)
3Magazine tray buttons 1 – 6Warning!
G
Only insert a CD or DVD when the vehicle is 
stationary. There is a risk of accident by be-
ing distracted from road and traffic condi-
tions if you load a CD/DVD while the vehicle 
is in motion.
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.i
If the CD/DVD has a printed side, this must 
face upwards when the CD/DVD is inserted. If 
neither side is printed, the side to be played 
should face downwards.
i
Each magazine tray button3 indicates the 
status of the corresponding magazine tray by 
means of an LED.
LED off = magazine tray is empty
LED constantly lit = magazine tray is loaded
LED flashes = CD/DVD changer requesting 
disc to be loaded 
     
        
        Page 130 of 769

129 Control systems
COMAND video DVD
Notes about handling DVDs 
Only hold discs by the edge.
Handle discs carefully to prevent play-
back problems.
Avoid getting scratches, fingerprints 
and dust on discs.
Clean discs from time to time with a 
commercially-available cleaning cloth. 
Do not wipe them with a circular mo-
tion, but only in straight lines from the 
center outwards.
Only use a pen designed for such a pur-
pose to label discs.
Place discs back in their boxes after 
use.
Protect discs from heat and direct sun-
light.
Functional limitations
Depending on the DVD, it is possible that 
certain functions or actions may be tempo-
rarily or permanently unavailable. If you try 
to utilize such functions or carry out such 
actions, you will see the 7 symbol in the 
display.
Inserting or ejecting DVDs
Inserting a DVD (
page 116).
or
Ejecting a DVD (
page 118).
!
Do not affix stickers or labels to the discs. 
These could peel away and damage COMAND.
COMAND is designed to hold discs which com-
ply with the IEC 60908 standard. You can there-
fore only use discs with a maximum thickness of 
1.3 mm.
If you insert thicker discs, e.g. those that contain 
data on both sides (DVD on one side and audio 
data on the other), they cannot be ejected and 
can damage COMAND.
Do not use discs with an 8 cm diameter, even if 
they have an adapter.
Only use round discs with a 12 cm diameter.
Warning!
G
Only insert or eject a DVD when the vehicle 
is stationary. There is a risk of accident by 
being distracted from road and traffic condi-
tions if you load a DVD while the vehicle is in 
motion.
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. 
     
        
        Page 137 of 769

136 Control systemsCOMAND video DVD
Changing the setting: Slide qmr or 
turn ymz, until you reach the desired 
setting.
Saving a setting: Press n.
Exiting the menu: Slide omp.
Subtitles and camera angles
Select “Video”  “Video”  “Video 
DVD”.
Show the menu system, if necessary 
(page 131).
Select “DVD-V”  “DVD Functions”.
Select “Subtitles” or “Camera angle”.
In both cases a selection list will ap-
pear. The dotRin front of an entry 
indicates the current language.
Changing the setting: Slide qmr or 
turn ymz, until you reach the desired 
setting.
Saving a setting: Press n.
Exiting the menu: Slide omp.
Interactive content
Selecting an action: Slide qmr or 
omp, or turn ymz, until you reach the 
desired setting.
Initiating an action: Press n.
A menu appears, the first entry “Se-
lect” is highlighted.
Press n.
i
This function is not available for all DVDs. 
The number of settings you can make is deter-
mined by the content of the DVD. It may also be 
possible to make the settings in the DVD menu 
(
page 134).
i
DVDs may include interactive content (e.g. a 
video game). In a video game you can control the 
play by selecting and initiating actions. The type 
and number of actions depends on the DVD.
 
     
        
        Page 158 of 769

157 Control systems
COMAND telephone*
Closing the COMAND phone book
In the smart speller, select “Back”.
or
Press back button L in the center 
console (
page 84).
Selecting an entry in the COMAND 
phone book
Selecting entries using the smart speller
Switch from the list to the smart speller 
if necessary.
Changing smart speller language: 
Select !.
Select desired language.
Changing smart speller character 
set: Select #.
Depending on the previous setting, you 
will change to letters with special char-
acters or to numbers with special char-
acters.
Entering characters: Select the char-
acters of the entry you are searching 
for one by one.
Deleting individual characters: Se-
lect ) and briefly press n.
Each time you enter or delete a charac-
ter, the closest match will be displayed 
at the top of the list.
Deleting an entire entry: Select ) 
and press and hold n until the entry is 
deleted.
Canceling search: Switch from the 
smart speller to the list.
The entry at the top of the list is auto-
matically highlighted.Selecting using the list
If necessary, switch from the smart 
speller to the list.
Rotate ymz or slide qmr until the de-
sired entry is highlighted.
Selecting subentries
Select an entry with the + symbol and 
press n.
The + symbol changes to / and the 
subentries are displayed.
Rotate ymz or slide qmr until the de-
sired subentry is highlighted. 
     
        
        Page 160 of 769
![MERCEDES-BENZ CL550 2008 C216 Owners Manual 159 Control systems
COMAND telephone*
1Data field
2Input mark (cursor)
3Input characters
Changing data field: Slide qmr re-
peatedly until desired data field is high-
lighted.
or 
Select [ or ] rep MERCEDES-BENZ CL550 2008 C216 Owners Manual 159 Control systems
COMAND telephone*
1Data field
2Input mark (cursor)
3Input characters
Changing data field: Slide qmr re-
peatedly until desired data field is high-
lighted.
or 
Select [ or ] rep](/manual-img/4/3501/w960_3501-159.png)
159 Control systems
COMAND telephone*
1Data field
2Input mark (cursor)
3Input characters
Changing data field: Slide qmr re-
peatedly until desired data field is high-
lighted.
or 
Select [ or ] repeatedly until de-
sired data field is highlighted.
Entering data into a field: Select all 
characters one by one from the input 
characters line 3.
Toggling upper and lower case for 
the input characters: Select & or 
(.
Changing language for the input 
characters: Select !.
Select desired language.
Changing character set for the input 
characters: Select #.
Depending on the previous setting, you 
will change to letters with special char-
acters or to numbers with special char-
acters.
Displaying special characters as in-
put characters: Select !  “Sym-
bols”.
Returning input characters to nor-
mal characters: Select !  the 
desired language.
Moving cursor in the data field: 
SelectY or Z.
Deleting individual characters: 
Select) and briefly press n.
The character to the left of the cursor is 
deleted.
Deleting an entire entry: Select ) 
and press and hold n until the entry is 
deleted. 
Saving an entry: Select ?.
Canceling an entry: Select “Back”.
If one of the data fields contains data, a 
prompt will appear asking whether you 
want to save the entry.
Select “Yes” or “No”.
The entry will either be saved or 
not, depending on your selection.