torque MERCEDES-BENZ CLK550 2008 C209 Owner's Manual

95 Safety and Security
Driving safety systems
The ESP® switch is located on the center
console.
1ESP
® switch
With the engine running, press ESP®
switch1 until the ESP® warning
lampv in the instrument cluster
comes on.
The ESP
® is switched off.Switching off the ESP
®
(CLK 63 AMG only)iWhen the ESP® is switched off and one or
more drive wheels are spinning, the ESP®
warning lampv in the instrument cluster
flashes. However, the ESP
® will then not
stabilize the vehicle.
Warning!G
When the ESP® warning lampv is
illuminated continuously, the ESP® is
switched off or is not operational due to a
malfunction. Vehicle stability in standard
driving maneuvers reduces.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP
®.
!Avoid spinning of a drive wheel for an
extended period with the ESP® switched off. This
may cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz
Limited Warranty.
Warning!G
The ESP® should not be switched off during
normal driving. Disabling of the system will
result in the following:

no restriction to engine torque

loss of system supported traction
control
“ESP
® Off” is designed for driving on closed
tracks when the natural oversteer and
understeer characteristics are desired and
requires a highly skilled and experienced
driver able to handle these critical driving
situations.
You could lose control of your vehicle and
cause an accident.
Please be aware of these limits when you
switch off the ESP
®.

361 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
front-to-rear rotation pattern that will
maintain the intended rotation (spinning)
direction of the tire (
page 334).
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 334).
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 422) and
(
page 452).
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.

462 Practical hints
Flat tire
Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.Lowering the vehicle
Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.
Remove the jack.
1 - 5 Wheel bolts
Tighten the five wheel bolts evenly,
following the diagonal sequence
illustrated (1to5), 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 424).
Store the jack and the other vehicle
tools in the trunk.
Warning!G
Only use genuine Mercedes-Benz wheel
bolts. Other wheel bolts may come loose.
Do not tighten the wheel bolts when the
vehicle 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).


481 Technical data
Engine
Engine
Model Coupe
CabrioletCLK 350 (209.356)1
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 550 (209.372)1
CLK 550 (209.472)1CLK 63 AMG (209.477)1
Engine272273156
Mode of operation4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection4-stroke engine,
gasoline injection
No. of cylinders688
Bore3.66 in (92.90 mm)3.85 in (98.00 mm)4.02 in (102.20 mm)
Stroke3.39 in (86.00 mm)3.56 in (90.50 mm)3.72 in (94.60 mm)
Total piston displacement213.5 cu in (3 498 cm3)333.25 cu in (5 461 cm3)378.8 cu in (6 208 cm3)
Compression ratio10.5:110.5:111.3:1
Output acc. to SAE J 1349268 hp / 6 000 rpm2
(200 kW / 6 000 rpm)
2Premium fuel required. Performance may vary with fuel octane rating.
382 hp / 6 000 rpm2
(285 kW / 6 000 rpm)
475 hp / 6 800 rpm2
(354 kW / 6 800 rpm)
Maximum torque acc. to SAE J
1349258 lb-ft/ 2 400 - 5 000 rpm
(350 Nm / 2 400 - 5 000 rpm)391 lb-ft / 2 800 - 4 800 rpm
(530 Nm /2 800 - 4 800 rpm)465 lb-ft / 5 000 rpm
(630 Nm / 5 000 rpm)
Maximum engine speed6300 rpm6500 rpm7200 rpm
Firing order1-4-3-6-2-51-5-4-2-6-3-7-81-5-4-2-6-3-7-8
Poly-V-belt2404 mm2404 mm (CLK coupe)
2 380 mm (CLK cabriolet)2360 mm

487 Technical data
Electrical system
Electrical system
ModelCLK 350CLK 550CLK 63 AMG
Generator (alternator)14 V/150 A14 V/180 A14 V/180 A
Starter motor12 V/1.4 KW12 V/1.7 KW12 V/2.2 KW
Battery12 V/100 Ah12 V/100 Ah12 V/100 Ah
Spark plugsBosch Platin Y 7 MPP 33
NGK PLKR 6ABosch F8 DPP 332
NGK PFR 5R-11NGK ILZKAR 7A10
Electrode gap0.031 in (0.80 mm)0.039 in (1.00 mm)0.039 in (1.0 mm)
Tightening torque15 - 22 lb-ft (20 - 30 Nm)18.5 - 22 lb-ft (25 - 30 Nm)14.75 - 18.5 lb-ft (20 - 25 Nm)

514 Index
T
Tachometer 29, 140
Overspeed range 140
Tail lamps
Cleaning lenses 372
Messages in display 414, 415
Replacing bulbs 444, 448
Tar stains 368
Technical data
Air conditioning refrigerant 491
Brake fluid 491
Capacities fuels,
coolants, lubricants etc. 489, 490
Coolant 490, 494
Electrical system 487
Engine 481
Engine oil 491
Engine oil additives 491
Fuel capacity 490
Fuel requirements 492
Gasoline additives 493
Lubricants 489
Premium unleaded gasoline 492
Rims and tires 482
Tires, Mixed size 484
Tires, Same size 483Tires, Spare wheel sizes 486
Vehicle dimensions 488
Weights 488
Windshield washer and headlamp
cleaning* system 490, 496
Tele Aid 33, 295
Call priority 300
Emergency calls 296
Hands-free microphone 33
Information 299
Initiating an
emergency call manually 297
Messages in display 418
Remote door unlock 300
Roadside Assistance 298
SOS button 297
Stolen Vehicle
Recovery services 301
System self-check 295
Tele Aid System 295
Telephone* 30, 169, 292
Answering/ending a call 170
Changing mobile phone cradle 294
Hands-free microphone 33
Inserting in cradle 293Installing a different mobile phone
cradle 294
Messages in display 418
Operation 169, 236
Phone book 170
Redialing 171
Removing from cradle 294
TEL* menu 169
Temperature
Interior temperature 194, 204
Tie-down rings, Trunk 284
Tightening torque, Wheel bolts 462
Tilt/sliding sunroof* see
Power tilt/sliding sunroof*
Time 160
Time, Setting 160
TIN 360
Tire and Loading Information
Placard 335
Terminology 358
Tire inflation pressure 455
Checking tire pressure electronically,
Tire Pressure Monitoring System
(TPMS), (USA only) 344
Tire inflation pressure see
the placard on the fuel filler flap

517 Index
W
Warning indicators
Parktronic system*
(Canada only) 273
Warning sounds
Driver’s or passenger’s seat belt 79
Parking brake 54
Parktronic system*
(Canada only) 273, 274
Seat belt telltale 386
Warranty coverage 10, 477
Washer fluid see Windshield washer fluid
Washer reservoir level 490
Washing the vehicle 367
Wear pattern, Tires 361
Weights, Vehicle 488
Wheel
Bolts 426
Change 458
Collapsible wheel chock 422
Removing 460
Spare 458
Tightening torque 462
TIREFIT (CLK 63 AMG only) 422
Wrench 422
Wheels, Sizes 483Wheels, Tires and 331
Wind screen 265
Window curtain air bags 70
Windows see Power windows
Windshield
Cleaning 57, 373
Defogging 196, 206
Windshield washer fluid 330, 496
Message in display 420
Mixing ratio 496
Refilling 330
Reservoir level 490
Wiping 57
Windshield washer system 490, 496
Windshield wipers 56
Cleaning wiper blades 373
Replacing wiper blades 450
Winter driving 362
Block heater (Canada only) 363
Snow chains 363
Tires 362
Winter driving instructions 316
Winter tires 362
Wood trims, cleaning 376