wheel torque MERCEDES-BENZ S500 4MATIC 2003 W220 Owner's Manual

277 Operation
Tires and wheels
If you wish to cancel activation:
Press the
ç
button.
If the following message appears in the
multifunction display field:
REACTIVATE TIRE

PRES. MONITOR

or
TIRE PRES.

CHECK TIRES!


Check the tire inflation pressures and
correct them if necessary.

Reactivate the tire inflation pressure
monitor.
Rotating wheels
On vehicles with the same wheel size all
around, wheels can be rotated every 3 000
to 6 000 miles (5 000 to 10 000 km), or
sooner if necessary, according to the de-
gree of tire wear. The same direction of tire
rotation must be retained.
Rotate the wheels before the characteris-
tic tire wear pattern becomes visible
(shoulder wear on front wheels and tread
center wear on rear wheels).
Thoroughly clean the inner side of the
wheels after each rotation. Check and en-
sure proper tire inflation pressure. If nec-
essary, activate the tire inflation pressure
monitor*.Warning!
G
Rotate front and rear wheels only if they are
of the same size.
!If your vehicle is equipped with a tire in-
flation pressure monitor*, there are
electronic components built into the
wheel.
Do not use mounting tools in the area
of the valve as they could damage the
electronic components.
To prevent damage or incorrect instal-
lation, have the tires changed at an au-
thorized Mercedes-Benz Center.Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
110 ft.lb. (150 Nm).
Use only genuine Mercedes-Benz wheel
bolts specified for your vehicle's rims.

342 Practical hintsFlat tireMounting the new wheel
Clean contact surfaces of wheel and
wheel hub.

Guide the spare wheel onto the align-
ment bolt and push it on.

Insert wheel bolts and tighten them
slightly.

Unscrew the alignment bolt, install last
wheel bolt and tighten slightly.
Lowering the vehicle

Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.

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
110 ft. lb. (150 Nm).
!To avoid paint damage, place wheel flat
against hub and hold it there while in-
stalling first wheel bolt.Warning!
G
Always replace wheel bolts that are dam-
aged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be re-
paired immediately. Do not continue to drive
under these circumstances! Contact an au-
thorized Mercedes-Benz Center or call
Roadside Assistance.
Incorrect mounting bolts or improperly
tightened mounting bolts can cause the
wheel to come off. This could cause an acci-
dent. Be sure to use the correct mounting
bolts.
Warning!
G
Use only genuine equipment
Mercedes-Benz wheel bolts. They are identi-
fied by the Mercedes star. Other wheel bolts
may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
tip over.
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
110 ft.lb. (150 Nm).


384 Technical termsMultifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Overspeed range
Engine speeds within the red marking
of 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*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing:


Engine


Clutch/torque converter


Transmission


Transfer case


Drive shaft


Differential


Axle shafts/axles
Program mode selector switch
Used to switch the automatic transmis-
sion between standard operationS and
comfort operationC.
S 55 AMG with steering wheel gearshift
control and manual shift program: in
addition toS andC (see above), you
can useM for manual operationRemote Vehicle Diagnostics
Transmission of vehicle data and cur-
rent location to the Mercedes-Benz
Customer Assistance Center for sub-
scribers to the Tele Aid service.
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.
Restraint systems
Seat belts, belt tensioners, airbags and
child restraint systems. As indepen-
dent systems, their protective func-
tions complement one another.

385 Technical terms
RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.
Shift lock
When the vehicle is parked, this lock
prevents the transmission selector le-
ver from being inadvertently moved out
of positionP without the SmartKey
turned and the brake pedal depressed.
SRS
(S
upplemental R
estraint S
ystem)
Seat belts, emergency tensioning de-
vice and airbags. Though independent
systems, they are closely interfaced to
provide effective occupant protection.Tele Aid System
(T
elematic A
larm I
dentification on
D
emand)
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-
viding 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 a 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 stamped 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.).

407 Index
Upgrade signals 243
TeleAid
Messages in display 320
Telematics* 385
Telephone* 236
Answering a call 140
Dialing a number from the phone book
140
Ending a call 140
Hands-free microphone 27
Loading phone book* 140
Messages in display 321
Operating 139
Redialing 141
Temperature
Display mode 149
Setting interior temperature 177
Setting units in display 149
Tires 274
Tie-down hooks (Trunk) 223
Tightening torque 385
Tightening torque (Wheel bolts) 342
Time
Setting digital clock 23
Tire inflation pressure
Checking 262, 273Tire speed rating 255, 385
Tire traction 255
Tires 272, 378
Direction of rotation 273
Driving instructions 254
Messages in display 318
Retreads 272
Service life 273
Temperature 274
Tread depth 278
Wear pattern 277
Winter 278
Tools 322
Tow-away alarm 84
Arming 84
Disarming 84
Disarming for transport 84
Towing eye bolt (vehicle tool kit) 323
Installing 351
Towing the vehicle 349
Tracking services
For stolen vehicle 244
Traction 164, 385
Transmission see Automatic transmission
268
Tread depth (tires) 278Trip computer 143
Trip odometer
Resetting 128
Trunk
Auxiliary fuse box 353
Closing 97
Closing from the inside 99
Lock button, KEYLESS-GO* 93
Locking separately 98
Message in display 321
Opening 95
Opening from inside vehicle 96
Opening from the inside 99
Parcel net 232
Tie-down hooks 223
Trunk lid 95, 99
Trunk lock 327
Unlocking in an emergency 327
Unlocking separately 98, 102
Unlocking with SmartKey 89, 94
Trunk lid emergency release 96
Trunk lid opening/closing system* 99
Turn signal lamps
Replacing bulbs 331, 332

409 Index
Checking 262
Vehicle lock status
Checking (KEYLESS-GO*) 93
Vehicle tool kit 322, 323
Alignment bolt 323
Fuse chart 323
Fuse extractor 323
Hex-socket wrench 323
Open-end wrench 323
Screwdriver 323
Spare fuses 323
Universal pliers 323
Wheel wrench 323
Vehicle washing 284
Ventilation
Storage compartment 184
VIN (Vehicle Identification Number) 385
Voice control system* 385
Hands-free microphone 27
W
Warning lamps see Lamps, indicator and
warning
Warning sounds
Distance warning function* 207
Distronic* 201
Drivers seat belts 62Parking brake 45
Warranty coverage 359
Washing the vehicle 282
Wear pattern (tires) 277
Weights 370
Wheel change
Tightening torque 342
Wheels
Rotating 277
Tires and wheels 272
Window curtain airbags 61
Windows see Side windows
Windshield
Refilling washer fluid 271
Replacing wiper blades 337
Washer fluid 271
Windshield washer fluid
Message in display 321
Refilling 271
Wiping with 48
Windshield wipers 47, 171
Fast wiper speed 47
Intermittent wiping 47
Replacing wiper blades 337
Single wipe 47
Switching on 47Wiping with windshield washer fluid 48
Winter driving 278
Block heater* 279
Snow chains 279
Tires 278
Transmission program mode 166
Winter driving instructions 256
Winter tires 278
Wiper blades
Cleaning 286
Installing 338
Removing 337
Replacing 337
Wiping
And washing simultaneously 48
Interval 47
With windshield washer fluid 48
Wrench, hex-socket (vehicle tool kit) 323
Wrench, open-end (vehicle tool kit) 323
Wrench, wheel (vehicle tool kit) 323
X
Xenon headlamps
Bi-Xenon 381