Page 188 of 506

186 Controls in detailGood visibilityFor information on windshield wipers, see
“Windshield wipers” (
page 51).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on the ignition (
page 33).
Press button1.
The headlamps are cleaned with a
high-pressure water jet.For more information on filling up the
washer reservoir, see the “Operation” sec-
tion (
page 310).
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 40).
Auto-dimming 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 mir-
ror.
The rear view mirrors will not react if
reverse gear is engaged
the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at sen-
sors 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 sun-
shade* 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 al-
low 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.
Page 200 of 506

198 Controls in detailDual-zone automatic climate controlAdjusting air distribution
Adjusting manually
Use air distribution control4
(page 194) or (
page 195) to adjust the
air distribution.
Press air distribution rocker switch4
(page 194) or (
page 195) until the
display shows the desired setting.
The indicator lamp on the buttonU
goes out and the current air distribu-
tion appears in the air distribution
display9 (
page 194) or 8
(
page 195).Adjusting automatically
Press button U(
page 194) or
(
page 195).
The indicator lamp on the button
comes on. The air distribution is adjust-
ed automatically.
Adjusting center air vents:
The thumbwheels for left2 and right6
(
page 192) center air vents are automat-
ically positioned for optimum interior air-
flow. In this position, center air vent4
(page 192) and adjustable left and right
center vents3 and5 (
page 192) are
fully opened.
Windshield fogged on the outside
Switch the windshield wipers on
(page 52).
Press button U(
page 194) or
(
page 195).
The indicator lamp on the button
comes on.
Adjusting air volume
Adjusting manually
Five blower speeds are available.
Press to decrease orQ to in-
crease air volume (
page 194) or
(
page 195) to the desired level.
The indicator lamp on the Ubutton
(page 194) or (
page 195) goes
out. The selected blower speed is
shown in the display.
Adjusting automatically
Press the U button (
page 194) or
(
page 195).
The indicator lamp on the Ubutton
comes on. The air volume is adjusted
automatically.
Symbol
Function
a
Directs air through the center,
side and rear passenger com-
partment air vents
Z
Directs air to the windows
X
Directs air into the entire
vehicle interior
Y
Directs air to the footwells
Page 483 of 506

481 Index
Checking
Coolant level 308
Oil level 301, 304
Tire inflation pressure 301
Vehicle lighting 301
Child safety 71
Airbags 62
Infant and child restraint systems 67,
71
LATCH child seat anchors 81
Child safety switch see Blocking of rear
window operation 83
Cigarette lighter 269
Cleaning
Headlamps 186, 350
Light alloy wheels 351
Parktronic* system sensor 351
side markers 350
tail lamps 350
turn signal lenses 350
Windshield 52
Wood trims 354
Cleaning tires 313Clock 160
Closing
Glove box 262
Panorama sliding/pop-up roof 227
Roller sunblinds 226
Side windows 219
Sliding/pop-up roof* 223
Trunk
Vehicle with KEYLESS-GO* 115,
116
Trunk lid 112
Windows 218
Closing the trunk lid 115, 116
Cockpit 22, 471
Cockpit management and data system
(COMAND) 472
Cold tire inflation pressure 337
Collapsible tire 457
Tire inflation pressure 429
COMAND 472
COMAND* see separate operating instruc-
tionsCombination switch 137
Turn signals 51
Windshield wipers 51
Control system 145, 472
AUDIO menu 150
Convenience submenu 167
Display digital speedometer 150
Distronic* menu 152
Functions 149
Instrument cluster submenu 157,
159
Lighting submenu 162
Menus 148, 149
Multifunction display 145
Multifunction steering wheel 146
Selecting radio system 150
Selecting satellite radio* system 151
Settings menu 154
Standard display menu 150
Submenus 147, 149
TEL* menu 171
Trip computer menu 170
Vehicle status message memory
menu 153
Vehicle submenu 166
Page 489 of 506

487 Index
Good visibility 186
GPS 473
GPS see COMAND 272
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVW
GVW 337
GVWR 338
H
Hand-held transmitter
Programming integrated remote
control 281
Reprogramming integrated remote
control 284
Hazard warning flasher 138
Switching off 138
Switching on 138Headlamps
Automatic control 134
Bi-Xenon* 471
Cleaning system* 186
Switching off 56
Switching on 50
Heated seats* 127
Heated steering wheel* 270
Heater booster system 203, 473
Height adjustment
Head restraints 39
Steering wheel 39
Vehicle level 248
High beam flasher 50, 137
High beam headlamps
Messages in display 394
Replacing bulbs 418
Switching on 50, 137
High mounted brake lamp 418
Hood 303
Closing 303
Message in display 389
Opening 303
Hydroplaning 291I
Identification labels 448
Ignition 34, 36
Switching on 46, 47
Immobilizer 94
Activating 94
Deactivating 94
Indicator lamps see Lamps, indicator and
warning
Infant and child restraint systems 71
Installing 80
LATCH child seat anchors 81
Information
About service and warranty 10
Button for Tele Aid* 276
Inside rear view mirror
Antiglare 186
Installing
Infant and child restraint systems 80
Towing eye bolt 442
Wiper blades 424
Page 500 of 506

498 IndexSwitching off
Automatic central locking (control
system) 166
Engine 56
ESP 89
Hazard warning flasher 138
Headlamps 56
Seat heating* 128
Switching on
Automatic central locking (control
system) 166
ESP 90
Front fog lamps 136
Hazard warning flasher 138
Headlamps 50
High beams 137
Parking lamps 133
Rear fog lamp 137
Seat heating* 128
Windshield wipers 51
Symbol (Distronic*)
Distance warning function* 152Synchronizing
ESP 372
Panorama sliding/pop-up roof* 229
Power windows 220
Sliding/pop-up roof* 225
Time 160
T
Tachometer 144
Displaying gear range 177
Overspeed range 144
Tail lamps 422
Tar stains 349
Tele Aid
Messages in display 403, 404
Tele Aid System 475Tele Aid* 271
Emergency calls 273
Information 276
Initiating an emergency call
manually 274
Remote door unlock 278
Roadside Assistance 275
Stolen vehicle tracking services 279
System self-check 272
Tele Aid System 271
Upgrade signals 277
Telematics* 475
Telephone* 26, 270
Answering a call 172
Dialing a number from the phone
book 172
Ending a call 172
Loading phone book* 172
Messages in the display 405
Operating 171
Redialing 173