Page 118 of 442

116 Controls in detailLightingSwitching rear interior lights on and off
Press buttonV.
The lights in the rear passenger 
compartment come on.
Press buttonV again.
The lights in the rear passenger 
compartment go out.
Switching right front reading lamp on 
and off
Press right buttonX.
The right reading lamp comes on.
Press right buttonX again.
The right reading lamp goes out.
Switching left front reading lamp on and 
off
Press left buttonX.
The left reading lamp comes on.
Press left buttonX again.
The left reading lamp goes out.
Door entry lamps
The appropriate door entry lamp switches 
on if a door is opened in darkness and if 
the interior lighting is switched to auto-
matic function.
The entry lamp switches off automatically 
when the door is closed.
Trunk lamp
The trunk lamp switches on if the trunk lid 
is opened.
If you leave the trunk open for an extended 
period of time, the trunk lamp will switch 
off automatically after approximately ten 
minutes.
iIf you turn the SmartKey in the starter 
switch to position0 and switch off the 
exterior headlamps, the door entry 
lamps will remain lit for approximately 
five minutes. 
     
        
        Page 136 of 442

134 Controls in detailControl systemThe table below shows what settings can 
be changed within the various menus. Detailed instructions on making individual 
settings can be found on the following 
pages.Instrument cluster
Time/Date
Lighting
Vehicle
Convenience
Selecting temperature 
display mode
Time synchronization with head 
unit*
Setting daytime running 
lamp mode (USA only)
Setting automatic 
locking
Activating 
easy-entry/exit feature
Selecting speedometer 
display mode
Setting the time (hours)
Setting locator lighting
Setting key-dependency
Selecting language
Setting the time (minutes)
Setting night security 
illumination 
Setting parking position 
for exterior rear view 
mirror
Selecting display (speed 
display or outside 
temperature) for status 
indicator
Selecting time display mode
Setting interior lighting 
delayed shut-off
Selecting automatic time 
change (Daylight Saving Time 
(DST) summer/Standard time 
winter)Setting the date (month)Setting the date (day)Setting the date (year) 
     
        
        Page 143 of 442
141 Controls in detail
Control system
Setting the date (year)
This function can only be seen with audio 
system.
Move the selection marker with 
buttonæ orç to the 
Time/Date
 
submenu.
Press buttonj ork repeatedly 
until the message 
Date Set YY
 appears 
in the multifunction display.The selection marker is on the year 
setting.
Press buttonæ orç to set the 
year.Lighting submenu
Access the 
Lighting
 submenu via the 
Settings
 menu. Use the 
Lighting 
submenu to change the lamp and lighting 
settings on your vehicle.
The following functions are available:
iVehicles with COMAND*:
For information on setting the date, 
refer to the separate COMAND 
operating instructions.
Function
Page
Setting daytime running lamp 
mode (USA only)
142
Setting locator lighting
143
Setting night security 
illumination
143
Setting interior lighting delayed 
shut-off
145 
     
        
        Page 147 of 442

145 Controls in detail
Control system
Setting interior lighting delayed shut-off
Use this function to set whether and how 
long you would like the interior lighting to 
remain lit during darkness after you have 
removed the SmartKey from the starter 
switch.
Move the selection marker with 
buttonæ orç to the 
Lighting 
submenu.
Press buttonj ork repeatedly 
until the message 
Int. light delay 
off
 appears in the multifunction 
display.
The selection marker is on the current 
setting.
Press buttonæ orç to select 
the desired lamp-on period.
You can select:
0 sec.
, the delayed shut-off feature 
is deactivated.
5 sec.
, 10 sec.
, 15 sec.
 
or
20 sec.
, the interior lighting de-
layed shut-off feature is activated 
with the desired lamp-on period.
Vehicle submenu
Access the 
Vehicle
 submenu via the 
Settings
 menu. Use the 
Vehicle
 submenu 
to make general vehicle settings.
The following function is available:Setting automatic locking
Use this function to activate or deactivate 
the automatic central locking. With the 
automatic central locking system 
activated, the vehicle is centrally locked at 
vehicle speeds of approximately 9 mph 
(15 km/h).
Move the selection marker with 
buttonæ orç to the 
Vehicle
 
submenu.
Press buttonj ork repeatedly 
until the message 
Automatic door lk.
 
appears in the multifunction display.
Function
Page
Setting automatic locking
145
 
     
        
        Page 170 of 442
168 Controls in detailGood visibilityFor information on the windshield wipers, 
see “Windshield wipers” (
page 51).
Headlamp cleaning system*
The switch is located on the left side of the 
dashboard.
1Headlamp washer switch
Switch on ignition (
page 33). 
Press switch1.
The headlamps are cleaned with a 
high-pressure water jet.
For information on filling up the washer 
reservoir, see “Windshield washer system 
and headlamp cleaning system*” 
(
page 285).
Rear view mirrors
For more information on setting the rear 
view mirrors, see “Mirrors” (
page 41).
Interior rear view mirror, antiglare 
position
1Lever
Tilt the mirror to the antiglare night 
position by moving lever1 towards 
the windshield.
The interior rear view mirror is dimmed. 
     
        
        Page 171 of 442

169 Controls in detail
Good visibility
Automatic antiglare rear view mirrors*
The reflection brightness of the exterior 
rear view mirror on the driver’s side and 
the interior rear view mirror will respond 
automatically to glare when
the ignition is switched on
and
incoming light from headlamps falls on 
the sensor in the interior rear view 
mirror.
The rear view mirror will not react if
reverse gearR is engaged
the interior lighting is turned on
Warning!
G
The automatic antiglare function does not 
react if incoming light is not aimed directly 
at sensors in the interior rear view mirror.
The interior rear view mirror and the exterior 
rear view mirror on the driver’s side do not 
react, for example, if the rear window 
sunshade* is in raised position.
Glare can endanger you and others.Warning!
G
In the case of an accident liquid electrolyte 
may escape from the mirror housing if the 
mirror glass breaks.
Electrolyte has an irritating effect. Do not 
allow the liquid to come into contact with 
eyes, skin, clothing, or respiratory system. 
In case it does, immediately flush affected 
area with water, and seek medical help if 
necessary.
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror 
surface is convex (outwardly curved surface 
for a wider field of view). Objects in mirror 
are closer than they appear. Check your 
interior rear view mirror or glance over your 
shoulder before changing lanes.!Electrolyte drops coming into contact 
with the vehicle paint finish can be 
completely removed only while in the 
liquid state and by applying plenty of 
water. 
     
        
        Page 178 of 442

176 Controls in detailClimate controlThe climate control is operational when-
ever the engine is running. You can oper-
ate the climate control system in either the 
automatic or manual mode. The system 
cools or heats the interior depending on 
the selected interior temperature and the 
current outside temperature.Nearly all dust particles, pollutants and 
odors are filtered out before outside air en-
ters the passenger compartment through 
the air distribution system.
The air conditioning will not engage (no 
cooling) if the modeAC
OFF
 is selected 
(
page 181).
Warning!
G
When operating the climate control, the air 
that enters the passenger compartment 
through the air vents in the footwell can be 
very hot or very cold (depending on the set 
temperature). This may cause burns or frost-
bite on unprotected skin in the immediate 
area of the air vents. Always keep sufficient 
distance between unprotected parts of the 
body and the footwell air vents. If necessary, 
change the air flow using the air distribution 
controls to direct the air away from the foot-
well air vents (
page 178).
Warning!
G
Follow the recommended settings for heat-
ing and cooling given on the following pag-
es. Otherwise the windows could fog up, 
impairing visibility and endangering you and 
others.
iSevere conditions (e.g. strong air 
pollution) may require replacement of 
the filter before its scheduled interval. 
A clogged filter will reduce the air 
volume to the interior.
If the vehicle interior is hot, ventilate 
the interior before driving off, see 
“Opening (Summer opening feature)” 
(page 229).
Keep the air intake grille in front of the 
windshield free of snow and debris.
Do not obstruct air flow by placing 
objects on the air flow-through exhaust 
slots below the rear window. 
     
        
        Page 179 of 442

177 Controls in detail
Climate control
Deactivating the climate control system
Deactivating
Set air volume control1 (
page 175) 
to position0. 
Reactivating
Set air volume control1 (
page 175) 
to any speed.
Setting the temperature
Use temperature controls2 and3 
(page 175) to separately adjust the air 
temperature on each side of the passenger 
compartment. You should raise or lower 
the temperature setting in small incre-
ments, preferably starting at 72°F (22°C).Increasing
Turn temperature control2 or3 
slightly to the right.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Decreasing
Turn temperature control2 or3 
slightly to the left.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
iWhen the air conditioning is switched 
off, the outside air supply and circula-
tion are also switched off. Only choose 
this setting for a short time. Otherwise 
the windows could fog up.
iWhen operating the climate control 
system in automatic mode, you will 
only rarely need to adjust the tempera-
ture, air volume and air distribution.