Page 410 of 464
410 Technical dataFuels, coolants, lubricants, etc.
Fuels, coolants, lubricants, etc.CapacitiesVehicle components and their respective
lubricants must match. Therefore only use
brands tested and approved by
Mercedes-Benz.Please refer to the Factory Approved Ser-
vice Products pamphlet, or inquire at your
Mercedes-Benz Center.
Model
Capacity
Fuels, coolants, lubricants, etc.
Engine with oil filter
CLK 320
CLK 500
CLK 55 AMG
8.5 US qt (8.0 l)
8.0 US qt (7.5 l)
9.0 US qt (8.5 l)
Approved engine oils
Automatic transmission
CLK 320
CLK 500
CLK 55 AMG
8.0 US qt (7.5 l)
9.3 US qt (8.7 l)
9.3 US qt (8.7 l)
MB Automatic Transmission Oil
Rear axle
CLK 320
CLK 500
CLK 55 AMG
1.28 US qt (1.2 l)
1.5 US qt (1.4 l)
1.5 US qt (1.4 l)
Hypoid gear oil SAE 85 W 90
Power steering
approx. 1.1 US qt (1.0 l)
MB Power Steering Fluid (Pentosin
CHF 11S)
Front wheel hubs
approx. 3.0 oz (85 g) each
High temperature roller bearing grease
Brake system
0.64 US qt (0.6 l)
MB Brake Fluid (DOT 4+)
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 423 of 464

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.
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 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