Page 26 of 514

25 At a glance
Instrument cluster
Item
Page
1
LLeft turn signal indica-
tor lamp
53
2
vESP
® warning lamp
378
3
Speedometer
4
Multifunction display
140
5
lDistance warning 
lamp
Warning lamp without func-
tion. It illuminates with the ig-
nition on. It should go out 
when the engine is running.
6
KRight turn signal indi-
cator lamp
53
7
Coolant temperature indi-
cator with:
137
•Coolant temperature 
warning lamp
377,
398
Item
Page
8
Tachometer with:
138
1Supplemental 
Restraint System 
(SRS) indicator lamp
380,
409
-Antilock Brake Sys-
tem (ABS) indicator 
lamp
374
71,
379
BLow beam headlamp 
indicator lamp
131
AHigh beam headlamp 
indicator lamp
131
9
Main odometer with:
Gear selector lever 
position
140
Program mode
140
Item
Page
a
Clock with:
153
;Brake warning lamp, 
USA only
375
3Brake warning lamp, 
Canada onlyúEngine malfunction in-
dicator lamp, 
USA only
376
±Engine malfunction in-
dicator lamp, 
Canada only
376
CRoll bar warning lamp
b
Fuel display with:AFuel reserve warning 
lamp
379
c
Reset button for:
Resetting trip odometer
136
Adjusting instrument 
cluster illumination
136
Confirming new time set-
tings
153 
     
        
        Page 118 of 514

117 Controls in detail
Locking and unlocking
Close the trunk (
page 110).
Pull the mechanical key out of the 
SmartKey (
page 419).
Insert the mechanical key in the trunk 
lid lock.
Turn the mechanical key clockwise to 
position2 and remove the mechani-
cal key in that position to lock the 
trunk.
The trunk remains locked even when the 
vehicle is centrally unlocked.
Insert the mechanical key in the trunk 
lid lock.
Turn the mechanical key counterclock-
wise to neutral position1 and remove 
the mechanical key in that position to 
unlock the trunk.
You can now open the trunk 
(page 108).
Automatic central locking
The doors and the trunk automatically lock 
when the ignition is switched on and the 
wheels are turning at vehicle speeds of 
approximately 9 mph (15 km/h) or more.
You can open a locked door from the 
inside. Open door only when conditions 
are safe to do so.
You can deactivate the automatic locking 
mode using the control system, see “Set-
ting automatic locking” (
page 159).
iYou can only cancel the separate trunk 
locking mode by means of the 
mechanical key.
iThe doors unlock automatically after an 
accident if the force of the impact 
exceeds a preset threshold.
To prevent the vehicle door locks from 
locking, deactivate the automatic 
central locking when the vehicle
is pushed or towed
is on a test stand 
     
        
        Page 137 of 514
136 Controls in detailInstrument clusterFor a full view illustration of the instrument 
cluster, see “Instrument cluster” 
(page 24).
1Reset button
The instrument cluster is activated when 
you
open a door
switch on the ignition (
page 36)
press reset button1
switch on the exterior lamps
You can change the instrument cluster 
settings in the Instrument cluster submenu 
of the control system (
page 151).
Instrument cluster illumination
Use the reset button1 to adjust the 
illumination brightness for the instrument 
cluster.To brighten illumination
Turn reset button1 clockwise.
The instrument cluster illumination will 
brighten.
To dim illumination
Turn reset button1 counterclock-
wise.
The instrument cluster illumination will 
dim.
iThe instrument cluster illumination is 
dimmed or brightened automatically to 
suit ambient light conditions.
The instrument cluster illumination will 
also be adjusted automatically when 
you switch on the vehicle’s exterior 
lamps. 
     
        
        Page 154 of 514
153 Controls in detail
Control system
Time/Date submenu
Access the 
Time/Date
 submenu via the 
Settings
 menu. Use the 
Time/Date
 
submenu to change the instrument cluster 
display settings.
The following functions are available:Setting time (hours)
This function can only be seen in vehicles 
with audio system.
Move the selection marker with 
buttonæ orç to the 
Time
/Date 
submenu.
Press buttonj ork repeatedly 
until the message 
Clock, hours 
Confirm by press. R
 appears in the 
multifunction display.
The selection marker is on the hour 
setting.
Press buttonæ orç to set the 
hour.
Press the reset button in the instru-
ment cluster (
page 136) to confirm.
The hour is set and stored.
Function
Page
Setting the time (hours)
153
Setting the time (minutes)
154
Setting the date (month)
154
Setting the date (day)
155
Setting the date (year)
155
iVehicles with COMAND*:
For information on setting the time in 
COMAND, refer to the separate 
COMAND operating instructions. 
     
        
        Page 155 of 514

154 Controls in detailControl systemSetting time (minutes)
This function can only be seen in vehicles 
with audio system.
Move the selection marker with 
buttonæ orç to the 
Time/Date
 
submenu.
Press buttonj ork repeatedly 
until the message 
Clock, minutes 
Confirm by press. R
 appears in the 
multifunction display.
The selection marker is on the minutes 
setting.
Press buttonæ orç to set the 
minutes.
Press the reset button in the instru-
ment cluster (
page 136) to confirm.
The minutes are set and stored.
Setting the date (month)
This function can only be seen in vehicles 
with audio system.
Move the selection marker with 
buttonæ orç to the 
Time/Date
 
submenu.
Press buttonj ork repeatedly 
until the message 
Set date month
 
appears in the multifunction display.
The selection marker is on the month 
setting.
Press buttonæ orç to set the 
month.
iVehicles with COMAND*:
For information on setting the time in 
COMAND, refer to the separate 
COMAND operating instructions.
iVehicles with COMAND*:
For information on setting the date in 
COMAND, refer to the separate 
COMAND operating instructions. 
     
        
        Page 496 of 514

495 Index
Carpets, cleaning 371
Catalytic converter 316
CD changer* 227
CD player 146, 227
Center console 27
Lower part 28
Upper part 27
Central locking
Automatic 117, 159
Locking/unlocking from inside 118
Central locking switch 118
Certification label 468
Charcoal filter 204
Children in the vehicle 75
Air bags 64
Blocking rear 
side window operation 85
Front passenger front 
air bag off indicator lamp 81
Infant and 
child restraint systems 69, 75
LATCH-type child seat anchors 83
LATCH-type 
child seat anchors design A 84
LATCH-type 
child seat anchors design B 84Occupant Classification System 
(OCS) 78
Cigarette lighter 286
Climate control see 
climate control system 186
Climate control system
Air conditioning refrigerant 481
Air conditioning, Cooling 194, 206
Air distribution 190, 200
Air recirculation mode 192, 203
Air vents 195, 208
Air volume 190, 191, 201
Charcoal filter 204
Control panel, 
Automatic climate control 197
Control panel, Climate control 187
Deactivating/Reactivating 189, 199
Defogging 202
Defrosting 201
Defrosting, Rear window 185
Front defroster 191
MAXCOOL 202
Residual engine heat 
and ventilation* (REST*) 207
REST* 490
Temperature 190, 200Clock 25, 153, 154
Setting time 153, 154
Cockpit 22, 487
Cockpit Management and Data System 
see COMAND*
Cold tire inflation pressure 355
Collapsible wheel chock 413, 416
COMAND* 487
COMAND* see separate 
COMAND operating instructions
Combination switch 52, 131
Control system 139, 487
Functions 143
Multifunction display 140
Multifunction steering wheel 140
Resetting to factory default 148
Control system menus 142, 143, 489
AUDIO 145
NAV* 146
Settings 148
Settings, Submenus 149
Standard display 144
Submenus 141
TEL* 163
Trip computer 161
Vehicle status message memory 146