Page 420 of 464

420 Technical termsCAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.COMAND
(C
ockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other op-
tional equipment (CD changer, tele-
phone, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Distronic*
A driving convenience cruise control
system which helps the driver maintain
a pre-selected speed:
If there is no vehicle directly ahead,
the system operates in the same
way as conventional ->cruise con-
trol.
If a slower moving vehicle is ahead,
Distronic will reduce your vehicle
speed to the extent permitted by re-
duced throttle and up to 20% brak-
ing power to maintain the preset
minimum following distance.
Page 422 of 464

422 Technical termsLine of fall
The direct line that an object moves
downhill when influenced by the force
of gravity alone.
Lock button
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.Memory function*
Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey or, if so equipped,
KEYLESS-GO* feature.
Menu
The control system displays are ar-
ranged in menus. Each menu contains
a number of commands for particular
systems. In the Audio menu, for exam-
ple, you will find the commands
Select
radio station
or Operate CD player
.
Using commands, you can directly
change the settings for your vehicle.MON
(M
otor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Multifunction display
Display field in the speedometer used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Page 425 of 464

425 Technical terms
Tele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Tire speed rating
Part of tire designation; indicates the
speed range for which a tire is ap-
proved.
Traction
Force exerted by the vehicle on the
road via the tires.VIN
(V
ehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).
Wind screen
Screen for deflecting wind from the ve-
hicle interior when the soft top is
lowered.
Page 428 of 464

428 IndexAir pressure see Tire inflation pressure
Air recirculation mode 178
Activating 178
Deactivating 179
Air vents, rear passenger compartment
Adjustable 182
Air volume
Adjusting 177
Airbags 59
BabySmart
TM airbag
deactivation system 71, 419
Children 60
Front 63
Head-thorax 63
Passenger 63
Rear side-impact 64
Safety guidelines 62
Alarm
Audible 75, 84, 86
Canceling 84, 86
Visual 83
Alarm system
Anti-theft 83
Alignment bolt 382
Alignment bolt (vehicle tool kit) 419Anticorrosion/antifreeze 415
Antiglare
Automatic 168
Antilock brake system (ABS) 419
Anti-theft alarm system
Arming 83
Canceling alarm 84, 86
Disarming 84
Anti-theft systems 82
Anti-theft alarm system 83
Immobilizer 82
Tow-away alarm 84
Aquaplaning see Hydroplaning
Armrest
Storage spaces 251
Ashtray (Center console) 253
Opening 253
Reinstalling 254
Removing 253
Ashtray (Rear seat) 254
Opening 254
Reinstalling 254
Removing 254At the gas station 284
ATF (automatic transmission fluid) 291
AUDIO menu 134
Selecting radio station 135
Selecting satellite radio* station 135
Audio system 183
Audio and telephone, operation 183
Button and soft key operation 186
Cassette operation 196
CD operation 199
Operating and display elements 184
Operating safety 183
Operation 186
Radio operation 189
Sound system 183
Switching off 186
Switching on 186
Telephone operation 203
Automatic antiglare for
rear view mirror 168
Automatic central locking
Activating/deactivating
(control system) 149
Locking/unlocking
(central locking switch) 108
Page 432 of 464

432 IndexClosing
Cup holder 251
Glove box 250
Hood 288
Side windows 211
Side windows
with KEYLESS-GO* 96, 214
Ski sack roller blind* 217, 248
Soft top 215
Soft top (SmartKey) 223
Soft top (switch) 219
Soft top in an emergency 355
Soft top in an emergency
(with add. locking mechanism) 364
Soft top in an emergency (without
add. locking mechanism) 357
Soft top with KEYLESS-GO* 96
Trunk 100
Windows 210
Windows with KEYLESS-GO* 214
Windows with SmartKey 213
Windows with soft top switch 212
Closing from the inside
Trunk 101Cockpit 20, 420
Cockpit management
and data system (COMAND*) 420
COMAND* 420
COMAND* see separate
operating instructions
Combination switch 123
High beam flasher 48, 123
Turn signals 48
Windshield wipers 48
Comfort driving
Transmission program
mode C (Comfort) 163, 164
Consumer information 417
Control and operation
of radio transmitters 281Control system 129, 420
AUDIO menu 134
Convenience submenu 149
Display digital speedometer 134
Distronic* menu 137
Functions 130, 133
Instrument cluster
submenu 142, 144
Lighting submenu 145
Malfunction memory menu 138
Menus 132, 133, 422
Multifunction display 129
Multifunction steering wheel 130
NAV menu 137
Selecting radio system 135
Selecting satellite radio* system 135
Settings menu 139
Standard display menu 134
Submenus 131, 133
TEL* menu 154
Trip computer menu 152
Vehicle submenu 148
Page 444 of 464

444 IndexOpening from the inside
Trunk 100
Operating
Audio system 183
Cassette player 136
CD player 136
COMAND* see
separate operating instructions
Navigation system 137
Radio 135
Radio transmitters 281
Telephone* 154, 183, 203
Vehicle outside the
USA and Canada 13
Operating roll bar manually 353
Operating safety
Audio system 183
Operator’s Manual 10
Ornamental moldings 307
Outside temperature indicator 128
Overdue service 302
Overhead control panel 27
Overspeed range 423P
Paintwork 305
Panic alarm 75
Panic button on SmartKey 75
Parcel net in
front passenger footwell 253
Parking 52, 275
Parking assist* see Parktronic*
Parking brake 46, 53
Engaging 53
Message in display 327
Releasing 46
Parking lamps
Replacing bulbs 373, 375, 377
Switching on 119
Parking position
Exterior rear
view mirrors 118, 151, 169
Parktronic* 241, 423
Sensor 308
Parts see Spare parts service
PASS. AIRBAG OFF indicator lamp 319
Passenger airbags 63Passenger compartment 280
Fuse box in 394
Interior lighting 124
Interior rear view mirror 38
Parcel net in
front passenger footwell 253
Storage bags,
rear side of the front seats 252
Passenger safety see Occupant safety
Pedals 273
Phone book*
Loading 155
Quick search 156
Phone number*
Dialing 155
Redialing 156
Plastic and rubber parts
Cleaning 310
Playing
CDs 201
Poly-V-belt drive 423
Layout 401
Page 445 of 464

445 Index
Positions (Memory function)
Recalling from memory 117
Storing into memory 117
Power assistance 273
Power seat
Adjusting backrest tilt 36
Adjusting head restraint height 36
Adjusting head restraint tilt 36
Adjusting seat cushion tilt 36
Adjusting seat height 36
Front seat head restraints 110
Seat fore and aft adjustment 35
Power train 423
Power washer 305
Power windows 210
Blocking of rear window operation 74
Side windows 210
Synchronizing 214Practical hints
First aid kit 343
Fuses 394
Lamp in center console 319
Lamps in instrument cluster 312
Messages in the display 320
Minispare wheel 346
Minispare wheel bolts 347
Towing the vehicle 390
Unlocking/locking
in an emergency 348
Vehicle jack 345
Vehicle tool kit 343
Premium unleaded gasoline 413
Problems
While driving 51
With vehicle 17
Product information 9
Program mode selector switch 423
Automatic transmission 163
Automatic transmission,
CLK 55 AMG 164Q
Quick search
Phone book* 156
R
Radio
Selecting stations 135
Station search 135
Station selection setting 149
Radio operation 189
Radio see Radio operation
Radio transmitters,
control and operation 281
Radio*
Selecting stations (satellite) 135
Range (distance to empty)
Calling up 153
Reading lamp 27
Rear fog lamp 373
Bulb 373
Switching on 122
Rear lamp bulbs
Replacing 378
Rear lamps see Tail lamps
Page 447 of 464
447 Index
Reporting
Safety defects 18
Reset button in the
instrument cluster 139
Resetting
All functions (control system) 139
All functions of a submenu 140
Fuel consumption 153
Last stored speed ("Resume" function)
in Distronic* 235
Service indicator (FSS) 303
Trip odometer 127
Residual heat utilization 181, 424
Residual ventilation 181
REST
(Residual engine heat utilization) 424
Restraint system see
Infant and child restraint systemsRims 403
Roadside assistance 12
Tele Aid* 260
Roll bar 68, 424
Lowering manually 354
Messages in display 338
Operating manually 353
Warning lamp 317
RON 285
RON (Research Octane Number) 424
Rotating wheels 299
Rubber parts
Cleaning 310S
Safety
Occupant 58
Safety belts see Seat belts
Safety defects
Reporting 18
Safety systems
Driving 76
Searching
Radio station 135
Seat belt force limiter 67
Seat belts 64
Cleaning 310
Fastening 40
Proper use of 42, 66
Safety guidelines 62
Warning lamp 318
Seat cushion depth
Adjusting 112