Page 220 of 521

219 Controls in detail
4-zone automatic climate control*
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 A/Cmode (
page 227) is
deactivated.Deactivating the climate control
system
Deactivating
Press button´ (
page 216) or
(
page 217) until the display4
(page 216) or (
page 217) is
cleared.
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 pollu-
tion) may require replacement of the fil-
ter 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
“Summer opening feature”
(page 234). The climate control will
then adjust the interior temperature to
the set value much faster.
Keep the air intake grille in front of the
windshield free of snow and debris.
Do not obstruct air flow by placing ob-
jects on the air flow-through exhaust
slots below the rear window.
iWhen the climate control system is de-
activated, the outside air supply and
circulation are also deactivated. Only
choose this setting for a short time.
Otherwise the windows could fog up.
Page 296 of 521

295 Controls in detail
Useful features
Step 2:
If you have previously programmed an
signal transmitter button and wish to
retain its programming, proceed to
step 3.
If you are programming the integrated
remote control for the first time, press
and hold the two outer signal transmit-
ter buttons2 and4 and release
them only when the indicator lamp1
begins to flash after approximately
20 seconds (do not hold the button for
longer than 30 seconds). This proce-
dure erases any previous settings for
all three channels and initializes the
memory.
If you later wish to program a second
and/or third hand-held transmitter to
the remaining two signal transmitter
buttons, do not repeat this step and be-
gin directly with step 3.Step 3:
Hold the end of the hand-held remote
control5 of the device you wish to
train approximately 2 to 5 in
(5 to 12 cm) away from the signal
transmitter button (2, 3 or4) to be
programmed, while keeping the indica-
tor lamp1 in view.
Step 4:
Using both hands, simultaneously
press the hand-held remote control
button6 and the desired signal trans-
mitter button (2, 3 or4). Do not
release the buttons until step 5 is com-
pleted.
The indicator lamp1 will flash, first
slowly and then rapidly.Step 5:
After the indicator lamp1 changes
from a slow to a rapidly flashing light,
release the hand-held remote control
button and the signal transmitter but-
ton.
Step 6:
Press and hold the just-trained signal
transmitter button (2, 3 or4) and
observe the indicator lamp1.iThe indicator lamp1 flashes immedi-
ately the first time the signal transmit-
ter button is programmed. If this button
has already been programmed, the in-
dicator lamp will only start flashing af-
ter 20 seconds.
Page 504 of 521

503 Index
Center console
Lower part 28
PASS AIR BAG OFF indicator
lamp 384
Upper part 27
Centigrate see Temperature display mode
Central locking
Automatic 129, 174
Locking/unlocking from inside 129
Central locking switch 129
Certification label 468
Checking
Oil level 320
Children in the vehicle 78
Air bags 68
Blocking of rear window operation 89
Indicator lamp, front passenger front
air bag
Infant and child restraint systems 78
LATCH-type child seat anchors 88
Occupant Classification System (OCS)
Cigarette lighter 282Climate control system
4-zone automatic climate
control 214
Air conditioning refrigerant 487
Air conditioning, Cooling 212, 227
Air distribution 208, 222
Air recirculation mode 210, 224
Air volume 209, 223
Automatic mode 206, 220
Control panel, Rear 213, 229
Deactivating system 206, 219
Dual-zone automatic climate
control 202
Front defroster 209, 223
Maximum cooling MAX COOL 224
Rear climate control 229
Residual engine heat (REST) 228
Clock 25, 168
Setting time 169
Cockpit 22, 493
Cockpit Management and Data System
see COMAND
Cold tire inflation pressure 354
Collapsible tire 480
Collapsible wheel chock 424
COMAND 494COMAND see separate COMAND operat-
ing instructions
Combination switch 55, 145
Control system 153, 494
Multifunction display 153
Multifunction steering wheel 154
Resetting to factory default 164
Control system menus 156, 157
AUDIO 159
Distronic* 161
NAV* 161
Settings 163
Standard display 159
TEL* 180
Trip computer 178
Vehicle status message memory 162
Control system submenus 155
Convenience 175
Instrument cluster 166
Lighting 170
Time/Date 168
Vehicle 174
Controller Area Network see CAN system
Convenience submenu
Setting parking position for exterior
rear view mirror 176
Page 505 of 521

504 IndexCoolant
Anticorrosion/antifreeze mixing ratio
and quantity 491
Capacities 485
Checking coolant level 325
Messages in display 403, 404, 405
Temperature 314
Temperature indicator 151
Warning lamp 379
Cruise control 243, 494
Message in display 389
Cup holders 278
Cleaning 370
Curb weight 354
Customer Assistance Center see CAC
D
Date display, setting 169, 170
Daytime running lamp mode 142
Setting 170, 171
Deep water see Standing water
Defogging windshield 209, 224
Defrosting, Front 209, 223
Defrosting, Rear 201
Delayed shut-off
Exterior lamps 172
Interior lighting 173Department of Transportation see DOT
Diesel fuel 316
Diesel see Fuel
Difficulties
While driving 58
With starting 52
Digital clock see Clock
Digital speedometer 159
Dimensions, vehicle 482
Direction of rotation (tires) 331
Displays
Digital speedometer 159
Distronic* 249
Maintenance service indicator 360
Messages in display 398
Multifunction display 153
Outside temperature 153, 167
Symbol messages 398
Text messages 388
Vehicle status message memory 163
Vehicle system settings, Control
system 153
Distance to empty (Range), Trip
computer 178Distronic* 247, 494
Activating/deactivating 252
Cleaning system sensor 368
Control system 161
Distance warning function 256
Driving hints 257
Menu 251
Messages in display 389
Sensor cover 368
Warning and indicator lamps 250
Door
Entry lamps 148
Locking/unlocking, SmartKey 34,
108
Locking/unlocking, SmartKey with
KEYLESS-GO* 35, 114
Message in display 406
Opening from inside/outside 119
Remote door unlock (Tele Aid) 292
Unlocking, Mechanical key 426
Door control panel 32
Door handle 32
DOT 354, 494
Drinking and driving 303
Page 515 of 521

514 IndexSatellite radio* 160
Seat belt force limiter 76
Seat belts 73
Children in the vehicle
Cleaning 371
Fastening 47
Height adjustment 49
Message in display 417
Proper use of 49, 75
Safety guidelines 70
Telltale 25, 380
Warning lamp 380
Seating capacity 333
Seats 40, 131
Drive-Dynamic seat* with multicontour
features 134
Easy-entry/exit feature 43
Heater* 135
Memory function 138
Ventilation 136
Seats, Rear bench seat* 271
Securing cargo
Cargo tie-down rings 275
Selector lever see Gear selector leverSelf-test
OCS 86
Tele Aid 286
Service and warranty information 10
Service intervals see Maintenance, Service
indicator
Service life, Tires 329
Service see Maintenance
Service system see FSS (Canada vehicles)
or Maintenance System (US vehicles)
Service, Parts 466
Settings 114
Control system menus 155
Control system submenus 155
Date 169, 170
Factory, SmartKey 108
Individual, Vehicle 163
Memory function 139
Resetting all, Control system 164
Selective, SmartKey 108
Selective, SmartKey with
KEYLESS-GO* 115
Time 169
Shelf below rear window, cleaning 371
Shift lock 497
Shift program mode 189Shifting
Into optimal gear range (automatic
transmission) 190
Side impact air bags 72
Side marker lamps
Cleaning lenses 367
Side windows see Power windows
Sidewall 355
Ski sack* 268, 270, 271
SmartKey see Key, SmartKey
Snow chains 359
Snow tires 358
Spare fuses 461
Spare wheel 422
Mounting 441
Speed settings
Cruise control 246
Distronic* 253
Speedometer 25, 249
SRS 66, 497
Indicator lamp 25, 383
Message in display 418
Standing lamps 141
Standing water, Driving through 310
Starter switch 36
Positions 36