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 424 of 464

424 Technical termsRemote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to Tele Aid service.
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.Roll bars
Occupant protection system which
consists of tubular steel, integrated in
the rear head restraints. The roll bars
are lowered into the car body during
normal driving conditions and raised
automatically in an accident or in a crit-
ical driving situation.
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (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.Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being inadvertently moved out of
positionP without SmartKey turned
and brake pedal depressed.
Soft top
Soft top roof that can be opened by
pulling and closed by pressing a switch
and stored in the soft top compartment
in the trunk area.
Speedshift (CLK 55 AMG)
Steering wheel gearshift control. You
can change the gears yourself with the
steering wheel gearshift buttons.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.
Page 427 of 464

427 Index
A
ABS 23, 77, 419
Malfunction indicator lamp 312
Messages in display 321
Accelerator position,
automatic transmission 163
Accident
In case of 51
Activating
Air conditioning (cooling) 181
Air recirculation mode 178
Anti-theft alarm system 83
Automatic climate control 173
Central locking (control system) 149
Charcoal filter 179
Distance warning function* 238
Distronic* 233, 234
Easy-entry/exit feature 150
ESP 81
Exterior headlamps 47
Exterior lamps 120
Exterior rear view
mirror parking position 169
Front and rear fog lamp 121, 122
Hazard warning flasher 123
Headlamps 47High beams 123
Ignition 31
Ignition with KEYLESS-GO* 33
Immobilizer 54, 82
Manual shift programm
CLK 55 AMG 164
Rear window defroster 171
Residual heat 181
Seat ventilation* 113
Steering wheel gearshift
control (CLK 55 AMG) 164
Tow-away alarm 85
Windshield wipers 49
Adding
Coolant 292
Engine oil 291
Additional turn signals 373
Adjustable air vents,
rear passenger compartment 182Adjusting 34
Air distribution 176
Air volume 177
Backrest tilt 36
Exterior rear view mirror 39
Head restraint height 36
Head restraint tilt 36
Instrument cluster illumination 126
Interior rear view mirror 38
Mirrors 38
Multicontour seat* 112
Seat cushion depth 112
Seat cushion tilt 36
Seat fore and aft adjustment 35
Seat height 36
Seats 34
Steering column in/out 38
Steering column up/down 38
Steering wheel 37
Air conditioning (cooling)
Turning off 181
Turning on 181
Air conditioning refrigerant 412
Air distribution
Adjusting 176
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 429 of 464

429 Index
Automatic climate control 172
Adjusting air distribution 176
Air recirculation mode 178
Defrosting 177
Rear window defroster 171
Setting the temperature 175
Automatic headlamp mode 120
Automatic lighting control
Activating 124
Deactivating 125
Automatic locking when driving 107Automatic transmission 157
Accelerator position 163
Comfort (C) program mode 163, 164
Emergency operation
(Limp Home Mode) 166
Fluid level 291
Gear ranges 159
Gear selector lever position 157, 160
Gear shifting malfunctions 166
Kickdown 163
Manual (M) program mode 164
Manual shift program
mode (CLK 55 AMG) 164
One-touch gearshifting 158
Program mode selector switch 163
Program mode selector
switch CLK 55 AMG 164
Speedshift (CLK 55 AMG) 161
Sport (S) program mode 163, 164
Starting the engine 44
Steering wheel gearshift
control (CLK 55 AMG) 161
Transmission fluid 291
Auxiliary fuse box 396B
BabySmart
TM
Airbag deactivation system 71, 419
Compatible child seats 71, 419
Self-test 72
Backup lamps 373, 378
Bulbs 373
BAS 78, 419
Messages in display 322, 323
Batteries, SmartKey
Changing 350
Check lamp 89, 94
Checking 90, 95
Batteries, SmartKey with KEYLESS-GO*
Changing 351
Check lamp 89, 94
Checking 90, 95
Battery discharged
Jump starting 388
Battery, vehicle 294, 385
Charging 386
Disconnecting 386
Messages in display 326
Reconnecting 387
Reinstalling 386
Removing 386
Page 431 of 464

431 Index
Centigrade
Setting temperature units 142
Central locking
Automatic 107
From inside 108
Locking from inside 108
Switch 108
Switching on/off
(control system) 149
Unlocking from inside 108
Central locking switch 108
Changing
Batteries (SmartKey with
KEYLESS-GO*) 351
Batteries (SmartKey) 350
Key setting 149
Changing CDs 199
Charcoal filter 179
Activating 179
Deactivating 180
Charging
Vehicle battery 386
CHECK ENGINE
malfunction indicator lamp 314Checking
Coolant level 292
Oil level 286, 289
Tire inflate pressure 286
Vehicle lighting 286
Child safety 69
Airbags 60
Infant and child
restraint systems 64, 69
LATCH child seat anchors 73
Child safety switch see
Blocking of rear window operation
Child seat anchors see
LATCH child seat anchors
Cigarette lighter 254Cleaning
Cup holder 309
Distronic* system sensor cover 308
Gear selector lever 309
Hard plastic trim items 310
Headlamps 167
Headliner 310
Instrument cluster 309
Leather upholstery 310
Light alloy wheels 309
Nubuck leather upholstery
(CLK 55 AMG) 310
Parktronic* system sensor 308
Plastic and rubber parts 310
Seat belts 310
Soft top 306
Steering wheel 309
Upholstery 310
Windows 309
Windshield 50
Wiper blades 308
Wood trims 310
CLK 55 AMG
Manual shift program mode 164
Clock 23, 144
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 433 of 464

433 Index
Convenience submenu 149
Activating
easy-entry/exit feature 150
Setting key-dependency 151
Setting parking position
for exterior rear view mirror 151
Coolant 292, 414
Adding 292
Anticorrosion/antifreeze
quantity 414
Capacities 410
Checking level 292
Messages in display 328
Temperature 283
Temperature indicator 127
Warning lamp 315, 329
Coolant level
Checking 292Cruise control 226, 420
Canceling 227
Driving downhill 227
Driving uphill 227
Fine adjustment 228
Lever 233
Messages in display 323
Setting current speed 227
Setting to last stored speed
("Resume" function) 228
Cruise control lever 226
Cup holder
Cleaning 309
Closing 251
In the dashboard 251
Opening 251
Customer Assistance Center (CAC) 420D
Daytime running lamp mode 121
Setting 145, 146
Deactivating
Air conditioning (cooling) 181
Air recirculation mode 179
Alarm 84
Anti-theft alarm system 84
Automatic climate control 173
Central locking (control system) 149
Charcoal filter 180
Defrost 177
Distance warning function* 238
Distronic* 233, 236
Engine with KEYLESS-GO* 55
Engine with the SmartKey 54
ESP 80
Exterior lamps 120
Hazard warning flasher 124
Headlamps 54
Immobilizer 82
Interior lighting
delayed switch-off 148
Manual shift programm
CLK 55 AMG 165
Rear window defroster 171