2005 MERCEDES-BENZ CLK320 CABRIOLET torque

339 Operation
Tires and wheels
Rotating tires
Tire rotation can be performed on vehicles
with tires of the same dimension all
around. If your vehicle is equipped with
tires of the same dimension all around,
tires can be rotated, observing a a
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 316).
In some cases, such as when your vehicle
is equipped with mixed-size tires (different
tire dimension front vs. rear), tire rotation
is not possible.If applicable to your vehicle’s tire configu-
ration, tires can be rotated according to
the tire manufacturer’s recommended in-
tervals in the tire manufacturer’s warranty
pamphlet located in your vehicle literature
portfolio. If none is available, tires should
be rotated every 3 000 to 6 000 miles
(5 000 to 10 000 km), or sooner if neces-
sary, according to the degree of tire wear.
The same rotation (spinning) direction
must be maintained (
page 316).
Rotate tires before the characteristic tire
wear pattern becomes visible (shoulder
wear on front tires and tread center wear
on rear tires).
Thoroughly clean the mounting face of
wheels and brake disks, i.e. the inner side
of the wheels/tires, during each rotation.
Check for and ensure proper tire inflation
pressure.For information on wheel change, see the
“Practical hints” section (
page 391) and
(
page 422).
Warning!
G
Rotate front and rear wheels only if the tires
are of the same dimension.
If your vehicle is equipped with mixed-size
tires (different tire dimensions front vs.
rear), tire rotation is not possible.
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.

426 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, it should be fully
collapsed, with handle folded in (storage
position) (
page 393).

Store the jack and the other vehicle
tools in the trunk.
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
fall off the jack.
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).

444 Technical dataEngineModel
CLK 320 (209.465)
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 (209.475)
1
CLK 55 AMG (209.476)
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)
3.62 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
2
(160 kW / 5 700 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
302 hp / 5 600 rpm
2
(225 kW / 5 600 rpm)
362 hp / 5 750 rpm
2
(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
6000 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
2380 mm
2380 mm

450 Technical dataElectrical systemModel
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)

464 Technical termsMultifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 337)
OCS
(Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
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
parking maneuvers.Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including


engine


clutch/torque converter


transmission


transfer case


drive shaft


differential


axle shafts/axles
Production options weight
(
page 337)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.
PSI
(P
ounds per S
quare I
nch)
(
page 337)
Recommended tire inflation pressure
(page 337)
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.

466 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.TIN
(T
ire I
dentification N
umber)
(
page 338)
Tire load rating
(page 338)
Tire ply composition and material used
(page 338)
Tire speed rating
(page 338)
Traction
(page 338)
Tread
(page 338)
Treadwear indicators
(page 338)
Uniform Tire Quality Grading Standards
(page 338)Vehicle capacity weight
(
page 338)
Vehicle maximum load on the tire
(page 338)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Wind screen
Screen for deflecting wind from the ve-
hicle interior when the soft top is
lowered.

492 IndexTele Aid 277
Emergency calls 278
Information 281
Initiating an
emergency call manually 279
Messages in display 388
Remote door unlock 283
Roadside Assistance 280
Stolen vehicle tracking services 283
System self-check 277
Tele Aid System 277
Upgrade signals 282
Tele Aid System 466
Telematics* 466
Telephone* 26, 276
Answering a call 161
Dialing a number
from the phone book 161
Ending a call 161
Hands-free microphone 29
Loading phone book* 161
Messages in display 390
Operating 160
Operation 224
Redialing 162Temperature
Display mode 145
Setting interior temperature 183
Setting units in display 145
Tires 323
Tightening torque 466
Tightening torque (Wheel bolts) 426
Time
Setting hours 147
Setting minutes 148
TIN 338
Tire
Vehicle maximum load on 338
Tire and Loading Information 317
Tire and loading terminology 335
Tire care and maintenance 314
Tire Identification Number see TIN
Tire inflation pressure
Checking 304, 322, 324
Tire inspection 314
Tire load rating 338
Tire ply composition
and material used 338
Tire speed rating 296, 328, 338
Tire terminology 335
Tire traction 296Tires 313, 445
Direction of rotation 316
Driving instructions 295
Retreads 313
Rims and tires 445
Rotating 339
Service life 314
Temperature 323, 334
Tread depth 315, 340
Wear pattern 339
Winter 340
Tools 391
Tow-away alarm 27, 91
Disarming 92
Disarming for transport 91
Towing eye bolt (vehicle tool kit)
CLK 320/CLK 500 434
CLK 55 AMG 435
Installing 434
Installing (CLK 55 AMG) 435
Towing the vehicle 432
Tracking services
For stolen vehicle 283
Traction 169, 338
Transmission see Automatic transmission
Traveling abroad 299

495 Index
Collapsible wheel chock 391
Fuse Extractor 391
Gloves 391
Hex wrench (in trunk) 391
Removing 391
Spare fuses 391
Straps for
soft top emergency operation 391
Towing eye bolt 391
Vehicle jack 391
Wheel bolts 391
Wheel wrench 391
Vehicle washing 347
VIN (Vehicle Identification Number) 466
W
Warning indicators
Parktronic system* 262
Warning sounds
Drivers seat belts 67
Parking brake 49
Parktronic system* 262, 263
Warranty coverage 441
Washer fluid see Windshield washer fluid
Washing the vehicle 345
Wear pattern (tires) 339
Weights 452Wheel bolts
For Minispare wheel 396
Wheel change
Tightening torque 426
Wheels
Tires and wheels 313
Wind screen 253, 466
Installing 253
Removing 254
Windows see Side windows
Windshield
Defogging 185, 194
Refilling washer fluid 312
Replacing wiper blades 421
Washer fluid 312, 460
Washer system 460
Windshield washer fluid 460
Message in display 390
Mixing ratio 460
Refilling 312
Wiping with 53
Windshield washer system 460
Windshield wipers 52
Fast wiper speed 52
Intermittent wipe 53
Intermittent wiping 52Replacing wiper blades 421
Single wipe 53
Switching on 52
Wiping with
windshield washer fluid 53
Winter driving 340
Block heater* 341
Snow chains 341
Tires 340
Winter driving instructions 297
Winter tires 340
Wiper blades
Cleaning 349
Installing 421
Removing 421
Replacing 421
Wiping
And washing simultaneously 53
Interval 52
With windshield washer fluid 53
Wood trims
Cleaning 352
X
Xenon headlamps
Bi-Xenon 461