421 Technical terms
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.Head-thorax airbag
Installed in the driver and the front pas-
senger seat, these airbags protect oc-
cupants during side impact collisions
exceeding a preset threshold. Unlike
normal side airbags, head-thorax air-
bags are also designed to provide pro-
tection for the head area.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
engine temperature and fuel gauge.
KEYLESS-GO*
System for entering and operating the
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
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423 Technical terms
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
g ine s pe ed r ang e, a s it ma y r es ult i n se -
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic (Parking assist)*
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/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between regular operationS and
comfort operationC.
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.
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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.
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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
ProCarManuals.com
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
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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
ProCarManuals.com
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
ProCarManuals.com
441 Index
Low beam headlamps
Messages in display 336
Replacing bulbs (Bi-Xenon*) 373
Replacing bulbs (Halogen) 373, 375
Lowering
Roll bar manually 354
Vehicle 384
Lubricants
Technical data 410
Luggage cover 216
Folding back 216, 245
Latch 216M
Main dimensions 408
Maintenance 12, 302
Malfunction
Displaying 138
Malfunction memory 138
Calling up 138
Manual gear shifting
Transmission program
mode M (Manual) 164
Manual headlamp mode 120
Manual operations
Fuel filler flap 352
Interior lighting control 125
Locking the vehicle 349
Roll bar 353
Soft top 355
Soft top with
add. locking mechanism 364
Soft top without
add. locking mechanism 357
Unlocking gear selector lever 352
Unlocking the driver’s door 348Manual shift program mode (CLK 55 AMG)
Downshifting 165
Upshifting 165
Manual shift programm CLK 55 AMG
Activating 164
Deactivating 165
Manual shift programm mode
CLK 55 AMG 164
MAXCOOL maximum cooling 177
Mechanical key 348
Memory function 116, 422
Recalling positions
from memory 117
Storing exterior rear view
mirror parking positions 118
Storing key-dependent settings 117
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