wheel bolt torque MERCEDES-BENZ SLR 2006 R199 Owner's Manual

285 Operation
Tires and wheels
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 351).
Anti-theft wheel nuts
Your vehicle is equipped with anti-theft
wheel nuts that prevent the theft of your
vehicle’s wheels.
1Anti-theft wheel nut
2Wheel nut key
Warning!
G
Have the tightening torque checked after
changing a wheel. Wheels could become
loose if not tightened with a torque of
95 lb-ft (130 Nm).
Only use Genuine Mercedes-Benz wheel
bolts specified for your vehicle’s rims.
Warning!
G
Pull the parking brake lever up as many
notches as possible and move the gear se-
lector lever to positionP, before loosening
the wheel bolts. Otherwise the vehicle may
move and cause an accident and/or serious
personal injury. !Do not use air tools, such as an impact
wrench, when installing or removing
the anti-theft wheel nuts. An impact
wrench can damage the anti-theft
wheel nuts and the wheel nut key, or
cause them to malfunction.
!Store wheel bolts and anti-theft wheel
nuts not currently in use in a safe place
to avoid damage to the threads.

286 OperationTires and wheelsRemoving anti-theft wheel nuts
Unscrew anti-theft wheel nut1 using
wheel nut key2.

Replace anti-theft wheel nut1 with
one of the regular wheel bolts.

Fasten the wheel bolt and tighten it
with a torque wrench to a tightening
torque of 95 lb-ft (130 Nm).Fitting anti-theft wheel nuts

Unscrew a wheel bolt from one of the
wheels.

Replace that wheel bolt with one of the
anti-theft wheel nuts1 delivered with
your vehicle.

Fasten anti-theft wheel nut1 using
wheel nut key2 and tighten with a
torque wrench to a tightening torque of
95 lb-ft (130 Nm).
Warning!
G
The wheels could come loose if the wheel
bolts are not tightened to a torque of 95 lb-ft
(130 Nm). Have the tightening torque
checked after changing a wheel.
Warning!
G
The wheels could come loose if the wheel
bolts are not tightened to a torque of 95 lb-ft
(130 Nm). Have the tightening torque
checked after changing a wheel.
iKeep the anti-theft wheel nut key in a
convenient place in your vehicle where
you and service personnel can always
find it easily when it is needed.iIf you should lose the anti-theft wheel
nut key or one of the anti-theft wheel
nuts, please contact an authorized
Mercedes-Benz Center for a replace-
ment.

389 Technical terms
Sidewall
(
page 283)
SRS
(Supplemental 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
(Tele
matic 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.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 283)
Tire load rating
(page 283)
Tire ply composition and material used
(page 283)
Tire speed rating
(page 283)
TIREFIT kit
Accessory for emergency and tempo-
rary tire repair. The TIREFIT kit consists
of a container with sealant material, a
filler hose and an air compressor.
Traction
(page 283)Tread
(
page 283)
Treadwear indicators
(page 283)
Uniform Tire Quality Grading Standards
(page 284)
Vehicle capacity weight
(page 284)
Vehicle maximum load on the tire
(page 284)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.

403 Index
Sun visors 180
Supplement Restraint System see SRS
Symbols used in this Operator’s
Manual 19
T
Tachometer 29
Overspeed range 115
Tail lamps
Messages in the multifunction
display 333
Replacing bulbs 348
Technical data 364
Air conditioning refrigerant 378
Brake fluid 379
Coolants 381
Electrical system 374
Engine 370
Engine oil additives 378
Engine oils 378
Fuel requirements 380
Fuels, coolants, lubricants etc. 377
Gasoline additives 380
Main dimensions 375
Poly-V-belt 369
Premium unleaded gasoline 379
Rims and tires 371Weights 376
Windshield and headlamp washer
system 377, 383
Tele Aid 208, 389
Call priority 214
Emergency calls 209
Hands-free microphone 33
Information 213
Initiating an emergency call
manually 211
Messages in the multifunction
display 334
Remote door unlock 215
Roadside Assistance 211
SOS button 211
Stolen Vehicle Recovery
services 215
System self-check 209
Telephone 203
Answering a call 140
Dialing 141
Ending a call 141
Hands-free microphone 33
Loading phone book 141
Messages in the multifunction
display 329Operation 139, 160
Redialing 142
Signal strength 140
Storage location 201
Temperature
Interior temperature 185
Outside temperature 115
Sensor, Interior 33
Sensor, outside 116
Setting display unit 129
Tether attachment points, see Children in
the vehicle
Tightening torque, Wheel bolts 285, 286,
389
Time 131
TIN 276, 283
Tire and Loading Information 258
Placard 258
Terminology 281
Tire Identification Number see TIN
Tire inflation pressure
Checking
Checking electronically 267
Checking manually 266
Setting units 137

405 Index
Replacing bulbs 348
Turning off the engine 58
U
Uniform Tire Quality Grading
Standards 284
Units, Setting
Speedometer 129
Temperature 129
Tire inflation pressure 137
Unleaded gasoline, Premium 241, 379
Useful features 200
V
Vacuum line routing diagram label 368
Vehicle
Batteries 251
Break-in the vehicle 230
Control system, Settings menu 126
Dimensions 375
Locking/unlocking 38, 59, 96, 103
Modifications and alterations, Operat-
ing safety 20
Towing 360
Transporting 362
Unlocking in an emergency 344
Vehicle capacity weight 284Vehicle care 292
Vehicle Identification Number see VIN
Vehicle lighting 243
Vehicle literature portfolio 342
Vehicle loading 257
Load limit 258
Roof and trunk lid racks 227
Terminology 281
Vehicle maximum load on the tire 284
Vehicle Recovery services, Stolen
(Tele Aid) 215
Vehicle status message memory
menu 124
Vehicle washing 293
VIN 368, 389
W
Warning lamps see Lamps, Indicator and
warning
Warning sounds
Exterior lamps 59
Parking brake 52
Seat belt telltale 69
Warranty coverage 14, 367
Washer fluid see Windshield washer fluid
Washer reservoir level 252
Washing the vehicle 292Wear pattern, Tires 284
Wheel bolts
Anti-theft wheel nuts 285
Tightening torque 285
Wheels, Sizes 372
Wheels, Tires and 254
Windows see Power windows
Windshield
Cleaning 294
Defrosting/Defogging 188
Windshield washer fluid 252, 383
Message in the multifunction
display 341
Mixing ratio 383
Refilling 252
Wiping with 55
Windshield washer system 383
Windshield wipers 27, 54
Cleaning wiper blades 294
Replacing wiper blades 350
Single wipe 55
Winter driving 287
Instructions 237
Snow chains 288
Tires* 287
Winter tires* 287