Page 364 of 394

364 Technical termsMemory function*
Used to store three individual seat,
steering wheel and mirror positions for
each key or, if so equipped, KEY-
LESS-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 AN-
TI-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.
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gi ne sp ee d ra nge , a s it m ay re su lt i n s e-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axles
Program mode selector switch
Used to switch the automatic transmis-
sion between regular operationS and
winter operationW.
CLK 55 AMG with steering wheel gear-
shift control and manual shift program.
In addition toS andC (for regularS or
comfortC operation, see above) you
can use theM for manual shift
program.
Page 365 of 394

365 Technical terms
Remote 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.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 transmission selector le-
ver from being inadvertently moved out
of positionP without key turned and
brake pedal depressed.
Speedshift
Steering wheel gearshift control and
manual shift program. In the manual
shift program mode you can change
the gears yourself on the steering
wheel or by using the selector lever.
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 370 of 394

370 IndexBulbs, replacing 316
Additional turn signals 317
Backup lamps 317
Brake lamps 317
Fog lamps 317
Front lamps 317
High beam 317
High mounted brake lamp 317
License plate lamps 317, 322
Low beam 317
Parking lamps 317, 319, 321
Rear fog lamp 317
Rear fog lamps 322
Side marker lamps 317, 321
Standing lamps 317, 319, 321
Tail lamp assemblies 317, 322
Turn signal lamps 317
Button
Audio system 168C
CAC (Customer Assistance Center) 362
Calling up
Distronic* settings 121
Range (distance to empty) 137
Service indicator 267
CAN system 362
Capacities
Fuels, coolants, lubricants, etc. 351
Cargo tie-down rings 218
Casette mode
Playing cassettes 174
Cassette player
Operating 121
Catalytic converter 248
CD changer* 178
CD mode 178
CD player
Operating 120
Center console 25
AIRBAG OFF indicator lamp 282
Lower part 26
Upper part 25
Centigrade
Setting temperature units 126Central locking
Automatic 95
From inside 95
Switch 95
Switching on/off (control system) 133
Unlocking from inside 95
Central locking switch 95
Changing
Batteries (SmartKey with KEY-
LESS-GO*) 312
Batteries (SmartKey) 312
Key setting 133
Changing CDs 178
Charcoal filter 161
Activating 161
Deactivating 161
Charging
Vehicle battery 330
CHECK ENGINE malfunction indicator
lamp 280
Checking
Coolant level 256
Oil level 252, 254
Tire inflate pressure 252
Vehicle lighting 252
Page 372 of 394

372 IndexCombination switch 107
High beam flasher 47, 108
Turn signals 47
Windshield wipers 47
Consumer information 358
Control and operation of radio transmitters
248
Control system 114, 362
AUDIO menu 119
Convenience submenu 133
Display digital speedometer 119
Distronic* menu 121
Functions 115, 118
Instrument cluster submenu 126, 128
Lighting submenu 129
Malfunction memory menu 122
Menus 117, 118, 364
Multifunction display 114
Multifunction steering wheel 115
NAVI menu 121
Selecting radio system 120
Settings menu 123
Standard display menu 119
Submenus 116, 118
TEL* menu 138
Trip computer menu 136Vehicle submenu 132
Convenience submenu 133
Activating easy-entry/exit feature 133
Setting key dependency 135
Setting parking position for exterior
rear view mirror 135
Coolant 256, 355
Adding 257
Anticorrosion/antifreeze quantity 355
Capacities 351
Checking level 256
Messages in display 289, 290
Temperature 250
Temperature display 112
Warning lamp 281, 290
Coolant level
Checking 256
Cruise control 193, 362
Canceling 194
Driving downhill 194
Driving uphill 194
Fine adjustment 195
Lever 200
Saving current speed 194
Setting speeds 195
Cruise control lever 193Cup holder
Cleaning 273
Closing 220, 221
In rear seat armrest 220
In the dashboard 220
Opening 220, 221
Customer Assistance Center (CAC) 362
D
Daytime running lamp mode 106
Setting 129, 130
Deactivating
Air conditioning (cooling) 163
Air recirculation mode 160
Alarm 80
Anti-theft alarm system 80
Automatic climate control 155
Central locking (control system) 133
Cruise control 194
Defrost 159
Distance warning function* 205
Distronic* 203
Engine with KEYLESS-GO* 52
Engine with the key 51
ESP 78
Exterior lamps 106
Hazard warning flasher 108
Page 389 of 394

389 Index
Switching on
Audio system 168
Automatic central locking (control sys-
tem) 133
ESP 78
Front fog lamps 107
Front lamps 105
Hazard warning flasher 108
Headlamps 46
High beams 108
Parking lamps 105
Rapid seat heating* 101
Rear fog lamp 107
Seat heating* 101
Windshield wipers 47
Symbol (Distronic*)
Distance warning function* 122
Synchronizing
Power windows 189
Sliding/pop-up roof 192, 315T
Tachometer 23, 113
Overspeed range 113
Tail lamps
Cleaning 271
Replacing bulbs 317, 322
Tar stains 269
Technical data 353
Brake fluid 353
Coolant 351
Coolants 355
Electrical system 348
Engine 344
Engine oil 353
Engine oil additives 353
Fuel requirements 354
Fuels 351
Gasoline additives 354
Lubricants 351
Main dimensions 349
Premium unleaded gasoline 354
Rims and tires 345Weights 350
Windshield and headlamp washer sys-
tem 357
Windshield and headlamp* washer sys-
tem 352
Tele Aid
Information 232
Initiating an emergency call manually
230
Messages in display 301
Roadside assistance 231
Tele Aid System 227
Tele Aid System 366
Tele Aid* 227
Emergency calls 228
Remote door unlock 234
Stolen vehicle tracking services 235
System self-check 228
Upgrade signals 233
Telematics* 366
Telephone
Emergency call 185