wheel torque MERCEDES-BENZ C240 2005 W203 Owner's Manual

289 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 287).
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 287).
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 329) and
(
page 353).
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.

359 Practical hints
Flat tire
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).Before storing the jack, it should be fully
collapsed, with handle folded in (storage
position) (
page 331).

Store the jack and the other vehicle
tools in the trunk.
Warning!
G
Vehicles with collapsible tire
(C 55 AMG only):
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 357) before
lowering the ve-
hicle.
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).

403 Technical terms
Tele Aid* System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and
manual emergency, roadside assis-
tance and information. Tele Aid is
initially activated by completing a
subscriber agreement and placing an
acquaintance call.
The Tele Aid system is operational
provided that the vehicle’s battery is
charged, properly connected, not
damaged and cellular and GPS
coverage is available.Telematics*
A combination of the terms “tele-
communications” 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
approved.
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*
1
Voice control system for car phones,
portable cell phones and audio
systems (radio, CD, etc.).
1Feature description is based on preliminary infor-
mation at time of printing. At time of printing, no
date for availability of voice control had been set.
Contact an authorized Mercedes-Benz Center for
details and availability for your vehicle model.

431 Index
Technical data
Air conditioning refrigerant 390
Brake fluid 390
Coolant 387, 388
Coolants 394
Electrical system 384
Engine 378
Engine oil additives 390
Engine oils 390
Flexible fuel vehicles 392
Fuel requirements 391
Fuels 387, 388
Gasoline additives 392
Lubricants 387
Main dimensions 385
Premium unleaded gasoline 391
Rims and tires 380
Weights 386
Windshield washer 389
Windshield washer and headlamp
cleaning* system 389, 396Tele Aid* 248
Emergency calls 250
Hands-free microphone 29
Information 253
Initiating an emergency
call manually 251
Message in display 328
Remote door unlock 255
Roadside Assistance 252
SOS button 251
Stolen Vehicle Recovery
services 256
System self-check 249
Tele Aid System 249, 403
Upgrade scenario 254
Telematics* 403
Telephone* 26, 247
Answering a call 151
Dialing a number from
the phone book 152
Ending a call 152
Hands-free microphone 29Loading phone book 152
Message in display 328
Operation 150, 208
Redialing 153
Temperature
Display mode 135
Grades of tires 398
Setting interior temperature 177
Setting units in display 135
Tires 288
Tie-down rings* (Trunk) 240
Tightening torque
(Wheel bolts) 359, 403
Tilt
Head restraint, manual seat 37
Head restraint, power seat* 39
Tilt/sliding sunroof*
Closing 227, 341
Closing with SmartKey 229
Messages in display 328
Opening 227, 341
Opening with SmartKey 229
Stopping 229
Synchronizing 230

435 Index
W
Warning lamps see
Lamps, indicator and warning
Warning sounds
Drivers seat belts 64
Parking brake 48
Warranty coverage 375
Washer fluid see Windshield washer fluid
Washer reservoir level
Checking 277
Washing the vehicle 295
Wear pattern (tires) 289
Weights 386
Wheel bolts 336
Wheel change
Tightening torque 359
Wheels
Tires and wheels 286
Window curtain air bags 64
Windows see Side windowsWindshield
Defogging 178
Refilling washer fluid 285
Replacing wiper blades 352
Washer fluid 285, 396
Washer system 396
Windshield washer fluid 396
Message in display 328
Mixing ratio 396
Refilling 285
Wiping with 52
Windshield washer system 396
Windshield wipers 51
Fast wiper speed 51
Intermittent wiping 52
Replacing wiper blades 352
Single wipe 52
Switching on 51
Wiping with
windshield washer fluid 52Winter driving 290
Block heater (Canada only) 291
Snow chains 291
Tires 290
Winter driving instructions 270
Winter tires 290
Wiper blades
Cleaning 298
Installing 352
Removing 352
Replacing 352
Wiping
With windshield washer fluid 52
Wood trims
Cleaning 300
X
Xenon headlamps
Bi-Xenon* 399