Page 224 of 521

223 Controls in detail
4-zone automatic climate control*
Adjusting air volume
Use buttonsU (
page 216) or
(
page 217) for automatic mode or air
volume buttons orQ
(page 216) or (
page 217) to adjust air
volume manually.
Nine blower speeds are available.
Press button to decrease or
buttonQ to increase air volume to
the desired level.
The indicator lamps on the
buttonsU go out.
AUTO
disappears
in the display4 (
page 216) or
(
page 217) and the automatic mode
is switched off. The selected blower
speed is shown in the display4.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.
Activating
Press buttonP or 0
(page 216) or (
page 217).
The indicator lamp on the button
comes on. Display4 (
page 216) or
(
page 217) is cleared.The air conditioning switches
automatically to the following functions:
cooling on to dehumidify
maximum blowing and heating
power (depends on cooling
temperature)
air flows onto the windshield and
the front side windows
the air recirculation mode is
switched off
Deactivating
Press buttonPor 0
(page 216) or (
page 217) again.
The indicator lamp on the button goes
out. Defrosting is turned off.
The previous settings are once again in
effect.
iKeep this setting selected only until the
windshield or the side windows are
clear again.
iThe cooling remains switched on.
Page 390 of 521
389 Practical hints
What to do if …
Display
Display message
Possible cause/consequence
Possible solution
Low
Battery
Conven. functions
temporarily
unavailable
The battery has insufficient voltage
and can no longer supply conve-
nience functions such as the rear
window defroster.
As soon as the on-board voltage is sufficient,
the consumers will switch on again.
Please note:
Conven. functions
available again
On-board voltage is sufficient; the
consumers will switch on again.
Cruise control
Drive to workshop
Cruise control or Distronic* is
malfunctioning.
Have the cruise control or Distronic*
checked by an authorized Mercedes-Benz
Center.
Distronic
External interference
Reactivate
The Distronic* is switched off and is
temporarily unavailable.
Try activating the Distronic* again later.
Drive to workshop
The Distronic* is malfunctioning or
the display is malfunctioning.
Visit an authorized Mercedes-Benz Center
as soon as possible.
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 514 of 521

513 Index
Problems
While driving 58
With vehicle 17
Product information 9
Production options weight 355
Program mode selector switch 497
Automatic transmission 189
Manual shift program E 55 AMG, auto-
matic transmission 193
PSI 355
PULSE function (Massage function) see
Drive-Dynamic seat* with multicontour
features
R
Radio
Selecting stations 159
Selecting stations (satellite*) 160
Radio transmitters 311
Range (distance to empty) 179
Reading lamp, front 148
Reading lamp, rear 149
Rear bench seat*, foldable 271
Rear door window
Blocking operation 89
Rear fog lamp see Fog lamps 145
Rear lamps see Tail lampsRear seat ashtray see Ashtray
Rear seat head restraints see Head re-
straints
Rear view mirrors see Mirrors
Rear window defroster 201
Rear window sunshade* 200
Recommended tire inflation
pressure 355
Recovery services, Stolen vehicle (Tele
Aid) 293
Refrigerant, Air conditioning 487
Refueling 315
Regular checks 317
Reminder, Seat belt see Seat belts,
Telltale 380
Remote control, SmartKey 106
Remote door unlock (Tele Aid) 292
Replacing bulbs
Additional turn signals 437
Brake lamps 435
Headlamps 436
High beam headlamps 434
High mounted brake lamp 434
License plate lamps 434, 438
Low beam headlamps 434, 436
Parking lamps 434, 437Side marker lamps 433
Side marker lamps, front 437
Tail lamps 434, 438
Turn signal lamps 433, 434, 437
Reporting safety defects 18
Research Octane Number see RON
Reset button, In instrument cluster 25,
150, 164
Rest tool
Depository 430
Restraint system see Children in the vehi-
cle
Restraint system see SRS
Reverse gear position 185
Rims 355, 473
Roadside Assistance 12
Roller sunblind* 201
RON 316, 497
Roof rack* 268
Rubber parts, cleaning 370
S
Safety
Driving safety systems 92
Occupant 66
Reporting defects 18
Safety belts see Seat belts 47