2006 MERCEDES-BENZ CLK500 torque

358 OperationTires and wheelsRotating 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 333).
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 333).
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 413) and
(
page 446).
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.

451 Practical hints
Flat tire
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,
following the diagonal sequence
illustrated (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 415).

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

470 Technical dataEngineModel
CLK 350 (209.456)
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
272
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
3.66 in (92.90 mm)
3.82 in (97.00 mm)
3.82 in (97.00 mm)
Stroke
3.39 in (86.00 mm)
3.31 in (84.00 mm)
3.62 in (92.00 mm)
Total piston displacement
213.5cuin (3498cm
3)
303.0 cu in (4 966 cm
3)
331.8 cu in (5 439 cm
3)
Compression ratio
10.5:1
10:1
11:1
Output acc. to SAE J 1349
268 hp / 6 000 rpm
2
(200 kW / 6 000 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
258lb-ft/2400-5000rpm
(350 Nm / 2 400 - 5 000 rpm)
339 lb-ft / 2 700 - 4 250 rpm
(460 Nm /2 700 - 4 250 rpm)
376lb-ft/4000rpm
(510 Nm / 4 000 rpm)
Maximum engine speed
6 300 rpm
6 300 rpm
6 700 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
2 404 mm
2 380 mm
2 380 mm

477 Technical data
Electrical system
Electrical system
Model
CLK 350
CLK 500
CLK 55 AMG
Generator (alternator)
14 V/150 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 Platin Y 7 MPP 33
NGK PLKR 6A
Bosch F8 DPP 332
NGK PFR 5R-11
NGK ILFR 6A
Electrode gap
0.031 in (0.80 mm)
0.039 in (1.00 mm)
0.031 in (0.8 mm)
Tightening torque
15 - 22 lb-ft (20 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)
18.5 - 22 lb-ft (25 - 30 Nm)

490 Technical termsMOE
(M
ercedes-Benz O
riginal E
xtended
equipment tires)
Tires with limited run-flat characteris-
tics. The MOExtended system allows
you to continue driving your vehicle
even if there is a total loss of pressure
in one or more tires.
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.
Normal occupant weight
(
page 356)
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.
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/axlesProduction options weight
(
page 356)
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
(Pounds per S
quare I
nch)
(
page 356)
Recommended tire inflation pressure
(page 356)
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.

492 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 357)
Tire load rating
(page 357)
Tire ply composition and material used
(page 357)
Tire speed rating
(page 357)
Traction
(page 357)
Tread
(page 357)
Treadwear indicators
(page 357)
Uniform Tire Quality Grading Standards
(page 357)Vehicle capacity weight
(
page 357)
Vehicle maximum load on the tire
(page 357)
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.

509 Index
Roadside Assistance 292
SOS button 291
Stolen Vehicle
Recovery services 296
System self-check 290
Tele Aid System 289
Telematics* 492
Telephone* 26, 163, 288
Answering/ending a call 164
Hands-free microphone 29
Messages in display 411
Operation 163, 233
Phone book* 164
Redialing 165
TEL menu* 163
Temperature
Interior temperature 190, 200
Tightening torque, Wheel bolts 451, 492
Time 153
Time, Setting 153, 154
TIN 357
Tire and Loading Information
Placard 334
Terminology 355
Tire inflation pressure
Checking 339Tire inflation pressure see
the placard on the fuel filler flap
Tires 330, 471
Air pressure 355
Care and maintenance 331
Chains 360
Cleaning 332
Direction of rotation, Spinning 333
Driving instructions 311
Important notes,
Tire inflation pressure 340
Inflation pressure 320, 339, 341
Inflation pressure,
Information placard 339
Inspection 331
Load rating 357
MOExtended system* 452
Ply composition
and material used 357
Problems under-/overinflated 344
Retreads 330
Rims and tires 471
Rotation 358
Run Flat Indicator 342
Service life 331
Sizes 473Snow 359
Spare wheel 416, 447, 476
Speed rating 312, 348, 357
Storing 332
Temperature 354
Terminology 355
Tire Identification Number see TIN
Traction 312, 357
Tread 357
Tread depth 332, 359
Treadwear indicators 357
Wear pattern 358
Winter 359
Tools 413
Tow-away alarm 27, 94
Towing eye bolt 460
CLK 500, CLK 55 AMG 461
Towing the vehicle 458
Traction 312, 357
Transmission gear selector lever see
Gear selector lever
Transmission see Automatic transmission
Traveling abroad 315
Tread 357
Tread depth 332, 359
Treadwear indicators 357

511 Index
Vehicle loading
Instructions 277, 333
Load limit 333
Terminology 355
Vehicle maximum load on the tire 357
Vehicle recovery services,
Stolen (Tele Aid) 296
Vehicle status message memory 146
Vehicle status messages 383
Vehicle system settings,
Control system 139
Vehicle tool kit 413
Vehicle washing 366
VIN 468, 492W
Warning indicators
Parktronic system*
(Canada only) 271
Warning sounds
Parking brake 51
Parktronic system*
(Canada only) 271, 272
Seat belt telltale 71
Warranty coverage 10, 467
Washer fluid see Windshield washer fluid
Washer reservoir level 480
Washing the vehicle 366
Wear pattern, Tires 358
Weights, Vehicle 478
Wheel
Bolts 418
Change 447
Collapsible wheel chock 416
Removing 449
Spare 416
Tightening torque 451
Wrench 448
Wheels, Sizes 473
Wheels, Tires and 330
Wind screen 263, 492Windows see Power windows
Windshield
Cleaning 55, 370
Defogging 192, 202
Windshield washer fluid 329, 486
Message in display 412
Mixing ratio 486
Refilling 329
Reservoir level 480
Wiping 55
Windshield washer system 480, 486
Windshield wipers 53
Cleaning wiper blades 370
Replacing wiper blades 444
Winter driving 359
Block heater (Canada only) 360
Snow chains 360
Tires 359
Winter driving instructions 313
Winter tires 359
Wood trims, cleaning 372
X
Xenon headlamps* see Headlamps