2004 MERCEDES-BENZ CLK55AMG COUPE torque

293 Operation
Tires and wheels
Rotating wheels
On vehicles with the same wheel size all
around, wheels can be rotated every 3 000
to 6 000 miles (5 000 to 10 000 km), or
sooner if necessary, according to the de-
gree of tire wear. The same direction of tire
rotation must be retained.
Rotate the wheels before the characteris-
tic tire wear pattern becomes visible
(shoulder wear on front wheels and tread
center wear on rear wheels).
Thoroughly clean the inner side of the
wheels after each rotation. Check and en-
sure proper tire inflation pressure.Warning!
G
Rotate front and rear wheels only if they are
of the same size.
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
80 lb-ft (110 Nm).
Only use genuine Mercedes-Benz wheel
bolts specified for your vehicle's rims.

362 Practical hintsFlat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.Lowering the vehicle

Lower vehicle by turning crank coun-
terclockwise until the full weight of the
vehicle is resting on the ground.

Remove the jack.
1 - 5 Wheel bolts

Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of 80 lb-ft
(110 Nm).

Before storing the jack in the trunk, it
should be fully collapsed, with handle
folded in.
Warning!
G
Only use genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.
Warning!
G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
80 lb-ft (110 Nm).


380 Technical dataEngine
EngineModel
CLK 320 (209.365)
1
1The quoted data apply only to the standard vehicle. See an authorized Mercedes-Benz Center for the corresponding data of all special bodies and special equipment.
CLK 500 (209.375)
1
CLK 55 AMG (209.376)
1
Engine
112
113
113
Mode of operation
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
4-stroke engine, gasoline injec-
tion
No. of cylinders
6
8
8
Bore
3.54 in (89.90 mm)
3.82 in (97.00 mm)
3.82 in (97.00 mm)
Stroke
3.31 in (84.00 mm)
3.31 in (84.00 mm)
3.60 in (92.00 mm)
Total piston displacement
195.2 cu in (3 199 cm
3)
303.0 cu in (4 966 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
10:1
10:1
11:1
Output acc. to SAE J 1349
215 hp / 5 700 rpm
(160 kW / 5 700 rpm)
302 hp / 5 600 rpm
(225 kW / 5 600 rpm)
362 hp / 5 750 rpm
(270 kW / 5 750 rpm)
Maximum torque acc. to SAE J
1349
229 lb-ft/ 3 000-4 600 rpm
(310 Nm / 3 000-4 600 rpm)
339 lb-ft / 2 700-4 250 rpm
(460 Nm / 2 700-4 250 rpm)
376 lb-ft / 4 000 rpm
(510 Nm / 4 000 rpm)
Maximum engine speed
6000 rpm
6 000 rpm
6700 rpm
Firing order
1-4-3-6-2-5
1-5-4-2-6-3-7-8
1-5-4-2-6-3-7-8
Poly-V-belt
2380 mm
2 380 mm
2380 mm

385 Technical data
Electrical system
Electrical system
Model
CLK 320
CLK 500
CLK 55 AMG
Generator (alternator)
14 V/120 A
14 V/150 A
14 V/150 A
Starter motor
14 V/1.4 KW
14 V/1.7 KW
14 V/1.7 KW
Battery
12 V/100 Ah
12 V/100 Ah
12 V/100 Ah
Spark plugs
Bosch F8 DPP 332
NGK PFR 5R-11
Bosch F8 DPP 332
NGK PFR 5R-11
NGK ILFR 6A
Electrode gap
0.039 in (1.00 mm)
0.039 in (1.00 mm)
0.031 in (0.8 mm)
Tightening torque
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)

400 Technical termsMemory 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.
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
gine speed range, as it may result in 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/axles
Program 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.

402 Technical termsTele 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.).

430 IndexTele Aid 251
Emergency calls 252
Information 256
Initiating an
emergency call manually 254
Messages in display 334
Remote door unlock 258
Roadside Assistance 254
Stolen vehicle tracking services 259
System self-check 252
Tele Aid System 251
Upgrade signals 257
Tele Aid System 402
Telematics* 402
Telephone* 24, 250
Answering a call 155
Dialing a number
from the phone book 155
Emergency call 208
Ending a call 155
Hands-free microphone 27
Loading phone book* 155
Messages in display 336
Operating 154
Operation 203
Redialing 156Temperature
Display mode 142
Grades of tires 396
Setting interior temperature 175
Setting units in display 142
Tires 292
Tie-down rings (Trunk) 243
Tightening torque 402
Tightening torque (Wheel bolts) 362
Time
Setting hours 144
Setting minutes 145
Tire inflation pressure
Checking 280, 292
Tire speed rating 272, 402
Tire traction 271Tires 381
Consumer information 395
Direction of rotation 291
Driving instructions 270
Retreads 290
Rims and tires 381
Service life 291
Temperature 292
Temperature grades 396
Tires and wheels 290
Tread depth 294
Wear pattern 293
Winter 294
Tools 337
Tow-away alarm 25, 83
Arming 83
Disarming 83
Disarming for transport 83
Towing eye bolt (vehicle tool kit)
CLK 320/CLK 500 370
CLK 55 AMG 371
Installing 370
Installing (CLK 55 AMG) 371
Towing the vehicle 368

433 Index
Vehicle jack 339
Vehicle lighting
Checking 280
Vehicle tool kit 337
Alignment bolt 337
Removing 337
Spare fuses 337
Towing eye bolt 337
Vehicle jack 337
Wheel bolts 337
Wheel wrench 337
Vehicle washing 300
VIN (Vehicle Identification Number) 402
Voice control system* 402
Hands-free microphone 27W
Warning sounds
Distance warning function* 229
Distronic* 223
Drivers seat belts 64
Parking brake 46
Warranty coverage 377
Washer fluid see
Windshield washer fluid
Washing the vehicle 298
Wear pattern (tires) 293
Weights 387
Wheel bolts
For Minispare wheel 342
Wheel change
Tightening torque 362
Wheels
Rotating 293
Tires and wheels 290
Window curtain airbags 64
Windows see Side windowsWindshield
Defogging 176
Refilling washer fluid 289
Replacing wiper blades 357
Washer fluid 289, 394
Washer system 394
Windshield washer fluid 394
Message in display 336
Mixing ratio 394
Refilling 289
Wiping with 49
Windshield washer system 394
Windshield wipers 48, 166
Fast wiper speed 49
Intermittent wiping 49
Replacing wiper blades 357
Single wipe 49
Switching on 48
Wiping with
windshield washer fluid 49
Winter driving 294
Block heater* 295
Snow chains 295
Tires 294