wheel bolt torque MERCEDES-BENZ CLK320 COUPE 2005 C209 Owner's Manual

341 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 319).
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 319).
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 389) and
(
page 412).
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.

418 Practical hintsFlat tire
Detach the electric air pump.

Store the electrical plug and the air
hose behind the flap and place the
electric air pump back in the trunk.Lowering the vehicle

Lower vehicle by turning crank
counterclockwise until vehicle is
resting fully on its own weight.

Remove the jack.1 - 5Wheel 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).
Warning!
G
Follow recommend inflation pressures.
Do not overinflate tires. Overinflating tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
Warning!
G
Vehicles with collapsible tire
(CLK 55 AMG only):
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 416) before
lowering the ve-
hicle.


460 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.).

486 IndexTele Aid 280
Emergency calls 281
Information 284
Initiating an
emergency call manually 282
Messages in display 386
Remote door unlock 286
Roadside Assistance 283
Stolen vehicle tracking services 286
System self-check 280
Tele Aid System 280
Upgrade signals 285
Tele Aid System 460
Telematics* 460
Telephone* 26, 279
Answering a call 163
Dialing a number
from the phone book 163
Ending a call 163
Hands-free microphone 29
Loading phone book* 163
Messages in display 388
Operating 162
Operation 232
Redialing 164Temperature
Display mode 149
Setting interior temperature 187
Setting units in display 149
Tires 326
Tie-down rings (Trunk) 271
Tightening torque 460
Tightening torque (Wheel bolts) 418
Time
Setting hours 152
Setting minutes 152
Time synchronization*
With head unit 151
TIN 340
Tire
Vehicle maximum load on 340
Tire and Loading Information 320
Tire and loading terminology 338
Tire care and maintenance 317
Tire Identification Number see TIN
Tire inflation pressure
Checking 307, 325, 327
Tire inspection 317
Tire load rating 340Tire ply composition
and material used 340
Tire speed rating 300, 331, 340, 460
Tire terminology 338
Tire traction 299
Tires 316, 439
Direction of rotation 319
Driving instructions 298
Retreads 316
Rims and tires 439
Rotating 341
Service life 317
Temperature 326, 337
Tread depth 318, 342
Wear pattern 341
Winter 342
Tools 389
Tow-away alarm 27, 91
Arming 91
Disarming 91
Disarming for transport 91

489 Index
Vehicle identification number (VIN) 436
Vehicle jack 391
Vehicle lighting
Checking 307
Vehicle loading terminology 338
Vehicle maximum load on the tire 340
Vehicle status message memory 145
Calling up 145
Displaying 145
Vehicle status messages 362Vehicle tool kit 389
Alignment bolt 389
Collapsible wheel chock 389
Gloves 389
Jack 389
Protective wrap
(CLK 55 AMG only) 389
Removing (CLK 55 AMG only) 390
Removing (except CLK 55 AMG) 389
Spare fuses 389
Spare wheel bolts 389
Towing eye bolt 389
Valve extractor
(CLK 55 AMG only) 389
Vehicle jack 389
Wheel wrench 389
Vehicle washing 349
VIN (Vehicle Identification Number) 460
Voice control system* 460
Hands-free microphone 29W
Warning indicators
Parktronic system* 262
Warning sounds
Drivers seat belts 67
Parking brake 49
Parktronic system* 262, 263
Warranty coverage 435
Washer fluid see Windshield washer fluid
Washing the vehicle 347
Wear pattern (tires) 341
Weights 446
Wheel bolts 396
Wheel change
Tightening torque 418
Wheels
Tires and wheels 316
Window curtain air bags 66
Windows see Side windows