358 Controls in detailPower windowsVehicles with KEYLESS-GO*
1Sensor surface on door handle
The SmartKey with KEYLESS-GO must be
located outside the vehicle within approxi-
mately 3 ft. (1 m) of a door.
Close all doors.Vehicles with tilt/sliding sunroof
Touch and hold sensor surface1 until
the windows and the tilt/sliding sun-
roof are completely closed.
Release sensor surface1 to interrupt
procedure.Vehicles with panorama roof* and/or
rear side window sunshades*
Touch and hold sensor surface1 until
the windows and the tilt/sliding panel
are completely closed.
Touch and hold sensor surface1
again.
The roller sunblinds and/or rear side
window sunshades* close.
Release sensor surface1 to interrupt
procedure.
i
Make sure that you are only touching the
sensor surface.
i
Make sure that you are only touching the
sensor surface.
i
If you touch the sensor surface while one of
the front side windows is open and one of the
rear side windows is closed, for example, the
front side window will be closed as well as the
rear side window sunshade*.
429 Controls in detail
Automatic climate control
Setting temperature
Use temperature controls %$
2anda (
page 426) in the center con-
sole or COMAND (
page 230) to sepa-
rately adjust the air temperature on each
side of the passenger compartment. You
should raise or lower the temperature set-
ting in small increments, preferably start-
ing at 72°F (22°C). The automatic climate
control will adjust to the set temperature
as fast as possible.
Press temperature control %$
2and/ora (
page 426) upward or
downward.
The climate control system will corre-
spondingly adjust the interior air tem-
perature.
Adjusting air volume
Use buttonsQ (
page 426) in the cen-
ter console or COMAND to separately ad-
just the air volume on each side of the
passenger compartment.
Press buttonQ up to increase or
down to decrease air volume.
The indicator lamps on buttonsU
(page 426) goes out.
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 button; (
page 426) up or
down.
The indicator lamp on the button
comes on.
The air conditioning switches to the follow-
ing functions automatically:
increased blowing and heating power
air flows onto the windshield and the
front side windows
the air conditioning compressor
switches on at outside temperatures
above approximately 41°F (5°C) for
dehumidifying the air
the air recirculation mode is switched
off
i
When you change the air volume, the auto-
matic function of the climate control system is
switched off.
i
Keep this setting selected only until the
windshield is clear again.
430 Controls in detailAutomatic climate controlDeactivating
Press button; (
page 426) up or
down.
The indicator lamp on the button goes
out.
The previous settings are once again in
effect, except air recirculation mode
stays off.
Windshield fogged on the outside
Switch the windshield wipers on
(page 351).
Press buttonU (
page 426) up or
down.
The indicator lamp on the button
comes on.
Rear window defroster
Activating
Switch on the ignition (
page 315).
Press button< (
page 426) up or
down.
The indicator lamp on the button
comes on.
Deactivating
Press button< (
page 426) up or
down.
The indicator lamp on the button goes
out.
Maximum cooling MAXCOOL (USA only)
If U is selected on both the left and
right side and there is a high demand for
cooling, the display “MAXCOOL” appears
in the COMAND display.
This provides the fastest possible cooling
of the vehicle interior (when windows and
tilt/sliding sunroof or tilt/sliding panel*
are closed).
!
The rear window defroster uses a large
amount of power. To keep battery drain to a min-
imum, switch off the defroster as soon as the
rear window is clear.
i
The defroster is automatically deactivated
after some time of operation depending on the
outside temperature.Warning!
G
Any accumulation of snow and ice should be
removed from the rear window before driv-
ing. Visibility could otherwise be impaired,
endangering you and others.
i
If the rear window defroster switches off too
soon and the indicator lamp goes out, this indi-
cates that too many electrical consumers are op-
erating simultaneously and the load on the
battery is reducing available voltage. The system
responds automatically by deactivating the rear
window defroster.
i
Maximum cooling MAXCOOL is only avail-
able when the engine is running.
526 OperationTires and wheelsTire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
Certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the Certification label
located on the driver’s door B-pillar.
693 Index
Power folding exterior rear view
mirrors 333
Power outlet 458
Power tilt/sliding sunroof 441
Emergency operations 617
Opening/closing 441
Opening/closing in an
emergency 617
Synchronizing 442
Power train 676
Power washer 535
Power windows 353
Blocking of rear window operation 67
Cleaning 540
Opening/closing 353
Practical hints 557, 611
Premium unleaded gasoline 490, 662,
664
PRE-SAFE
®
60
Message in display 567
Messages in display 572
Preventive occupant safety see PRE-SAFE
®
Problems
While driving 362
With vehicle 20
Product information 13Production options weight 527
Program mode see Automatic transmis-
sion, Automatic shift program
Program mode selector switch 676
Automatic shift program 374
Proper use of the vehicle 19
PSI 527
Push-start see Tow-start
R
Radio
FM/AM operation (COMAND) 93
Saving stations, FM/AM
(COMAND) 96
Selecting satellite radio* channel (In-
strument cluster control
system) 248
Selecting stations 248
Submenu overview, FM/AM
(COMAND) 93
Switching wavebands, FM/AM
(COMAND) 94
Tuning in stations/channels 94
Voice Control* 282
Radio transmitters, control and
operation 486Range (distance to empty) 246
Reading lamps in the front 349
Reading lamps in the rear 350
Rear door window
Blocking operation 67
Rear fog lamp
Replacing bulbs 622
Rear lamps see Tail lamps
Rear passenger compartment
Adjustable air vents 434
Rear seats
Adjustment 318
Folding back and placing upright rear
head restraints 325
Head restraints 324
Heating* 322
Multicontour* 327
Setting front passenger seat position
from rear 321
Ventilation* 323
Rear view mirrors see Mirrors
Rear window defroster 430
Activating 430
Deactivating 430
Recommended inflation pressure 527,
676
696 IndexShelf below rear window, Cleaning and
care of 542
Shift program mode, Automatic
transmission 374
Shifting, Automatic transmission 367
Side impact air bags 49
Side marker lamps
Cleaning lenses 537
Messages in display 599
Side windows see Power windows
Sidewall 527, 677
Sirius satellite radio* (COMAND) 98
SmartKey see Key, SmartKey
SmartKey with KEYLESS-GO* see Key,
SmartKey with KEYLESS-GO*
SMS messages 137
Snow chains 531
Spare fuses 646
Spare wheel see Minispare wheel
Speed
Setting current 381
Setting to last stored speed in DIS-
TRONIC Plus* (“Resume”
function) 395Speed settings
Cruise control 383
DISTRONIC Plus* 393, 394
To last stored speed (“Resume” func-
tion) in Cruise control 384
Speedometer
Displays 387
SRS 57, 677
Indicator lamp 552
Messages in display 605
Standing water, Driving through 485
Starter battery 636
Starter switch 315
Positions 315
Starting difficulties, Engine 360
Starting, Engine 359
Steering column 330
Steering wheel
Adjustment 330
Cleaning 542
Easy entry/exit feature 328
Heated steering wheel* 331
Power steering fluid 661
Steering wheel gearshift control
Automatic transmission 375Stolen Vehicle Recovery services 469
Storage compartments 448
Cup holder 452
Front armrest 448
Parcel net 449
Rear armrest 450
Ruffled storage pockets 451
Storage compartment in front of
armrest 448
Under the front seats 449
Storing tires 502
Summer opening feature 355
Sun visors 455
Sunroof see Power tilt/sliding sunroof
Sunshades
Extending or retracting rear window
sunshade (COMAND) 227
Extending/retracting rear window
sunshade 456
Opening or closing rear side window
sunshades 355
Supplemental Restraint System see SRS
Suspension tuning
Setting (ABC*) 403
700 IndexVehicle loading 447, 503
Cargo tie-down hooks 453
Instructions 447
Load limit 504
Roof rack* 447
Terminology 526
Vehicle maximum load on the tire 528
Vehicle Recovery services, Stolen (Tele
Aid) 469
Vehicle tool kit 611
VIN 652, 678
Voice control system* 678
Voice Control*
Address book 279
Command list 288
DVD changer 286
Individualization 302
Individualization (COMAND) 215
Introduction 258
Navigation 269
Operating safety 257
Operation via the multifunction steer-
ing wheel 260
Radio 282
Switching help window on or off
(COMAND) 215Telephone 262
Troubleshooting 299
W
Warning indicators
Park Assist* 411
Parktronic* 407
Warning lamps see Lamps, indicator and
warning
Warning sounds
Distance warning function* 397
DISTRONIC Plus* 388
Drivers seat belts 55
Parking brake 365
Warranty coverage 651
Washing the vehicle 534
Wear pattern, Tires 529
Weights, Vehicle 660
Wheels
Change 629
Collapsible wheel chock 613
Minispare wheel 613, 658
Removing 631
Rims and Tires 655
Sizes 655
Tightening torque 633, 678
Tires and wheels 500Window curtain air bags 49, 50
Windows see Power windows
Windshield
Cleaning 540
Cleaning wiper blades 540
Infrared reflecting 475
Windshield washer fluid 662, 668
Mixing ratio 668
Refilling 498
Wiping with 352
Windshield wipers 351
Cleaning wiper blades 540
Replacing wiper blades 627
Single wipe 352
Winter driving 530
Snow chains 531
Tires 530
Winter driving instructions 484
Winter tires 530
Wood trims, Cleaning 542
Wrench, wheel (vehicle tool kit) 611
X
Xenon headlamp see Headlamps