Page 285 of 425

284 Operation
Tires and wheels
Tire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least three hours or
driven no more than one mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (Department of Transportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross Axle Weight Rating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door A-pillar.
GVW (G
ross Vehicle Weight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GVW must never exceed the
GVWR indicated on the certification label
located on the driver’s door A-pillar.
Page 380 of 425
379 Technical data
Layout of poly-V-belt drive
Layout of poly-V-belt drive
The SLR has two poly-V-belts (belt one
shown in purple/belt two shown in black).
1Idler pulley
2Automatic belt tensioner
3Power steering pump
4Air conditioning compressor
5Idler pulley
6Crankshaft
7Coolant pump
8Generator (alternator)
9Idler pulley
aAutomatic belt tensioner
bSupercharger
Page 391 of 425

390 Technical data
Fuels, coolants, lubricants, etc.
CapacityFuels, coolants, lubricants, etc.
Cooling systemapprox. 10.6 US qt (10.0 l)MB 325.0 Anticorrosion/Antifreeze
Low temperature cooling system
Mercedes-Benz SLR McLaren
Mercedes-Benz SLR McLaren 722 Edition
approx. 5.3 US qt (5.0 l)
approx. 6.3 US qt (6.0 l)MB 325.0 Anticorrosion/Antifreeze
MB 325.0 Anticorrosion/Antifreeze
Fuel tank
including a reserve of25.6 US gal (97.0 l)
3.2 US gal (12.0 l)Premium unleaded gasoline:
Minimum Posted Octane 91
(Avg. of 96 RON/86 MON)
Air conditioning systemR-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and headlamp cleaning
system7.4 US qt (7 l)MB Windshield Washer Concentrate1
1Use MB Windshield Washer Concentrate “MB SummerFit” and water for temperatures above freezing or MB Windshield Washer Concentrate “MB SummerFit” and
commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 397).
Page 392 of 425

391 Technical data
Fuels, coolants, lubricants, etc.
Engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for
our service intervals. Therefore, only use
approved engine oils and oil filters
required for vehicles with Maintenance
System. For a listing of approved engine
oils and oil filters, refer to the Factory
Approved Service Products pamphlet
(USA only), or contact an authorized
Mercedes-Benz Center.Engine oil additivesAir conditioning refrigerant
R-134a (HFC) refrigerant and special PAG
lubricating oil are used in the air condition-
ing system.
!Using engine oils and oil filters of
specification other than those expressly re-
quired for the Maintenance System, or changing
of oil and oil filter at change intervals longer than
those called for by the Maintenance System will
result in engine or emission control system dam-
age not covered by the Mercedes-Benz Limited
Warranty.
Please follow Maintenance System recommen-
dations for scheduled oil changes. Failure to do
so will result in engine or emission control sys-
tem damage not covered by the Mercedes-Benz
Limited Warranty.
!Do not blend oil additives with engine oil.
They may damage the engine.
Damage or malfunctions resulting from blending
oil additives are not covered by the
Mercedes-Benz Limited Warranty.
!Never use R-12 (CFC) or mineral-based
lubricating oil. Otherwise damage to the system
will occur.
Page 406 of 425

405 Index
A
ABS 81, 399
Indicator lamp 29, 302
Messages in the multifunction
display 316, 317
ABS/ESP
®
Warning lamp 29, 300
Accelerator position, automatic
transmission 173
Accessory weight 284
Accident 54
ACL 399
Messages in the multifunction
display 323
Additional turn signals, Exterior
mirror 360Air bags 62
Children 63
Front, Driver 65
Front, Passenger 66
Head-thorax 65, 66
Knee 66
Occupant Classification System
(OCS) 67
Passenger front air bag off indicator
lamp 70
Safety guidelines 64
Air conditioning system see Automatic cli-
mate control
Air distribution 191, 192
Air pressure 284
Air pressure see Tire inflation pressure
Air recirculation mode 195
Air vents 187
Air volume 191, 193Airbrake 31, 89
Automatic mode 91
Emergency braking 91
Manual mode 90
Message in the multifunction
display 327
Test Mode 90
Warning lamp 29, 307
Alarm system see Anti-theft systems
Anticorrosion/antifreeze 390, 396
Antiglare, Interior rear view mirror 182
Antilock Brake System see ABS
Anti-theft systems
Anti-theft alarm system 92
Immobilizer 92
Tow-away alarm 94
Anti-theft wheel nuts 288
Aquaplaning see Hydroplaning
Armrest 206
Page 407 of 425

406 Index
Ashtray 208
Aspect ratio 284
AUDIO menu 126
Audio system 31, 145
Button and soft key operation 148
Cassette operation 154
CD operation 158
Location 145
Operating and display elements 146
Operating safety 145
Operation 148
Radio operation 151
Switching on/off 148
Telephone operation 162, 210
Auto-dimming, Interior rear view
mirror 182
Automatic car wash 296
Automatic central locking, Control
system 104, 139Automatic climate control 186
Adjusting air volume 193
Air conditioning refrigerant 391
Air conditioning, Cooling 196
Air distribution 191, 192
Air recirculation mode 195
Air vents 187
Air volume 191
Control panel 188
Deactivating system 190
Defrosting 185, 194
MAXCOOL 193
Residual heat utilization 197
Side air vents 31
Temperature 191
Temperature sensor 33
Automatic headlamp mode 107
Automatic lighting control, Interior
lighting 112Automatic transmission 169
Accelerator position 173
Damage 372
Driving tips 173
Emergency operation (Limp-Home
Mode) 181
Gear ranges 174
Gear selector lever 32, 169
Gear selector lever control one-touch
gearshifting 175
Gear selector lever position 171
Gear shifting malfunctions 181
Kickdown 173
Manual shift program 179
Shift program mode selector
switch 175
Shifting procedure 170
Starting the engine 47
Steering wheel gearshift control
one-touch gearshifting 177
Towing 372
Transmission fluid level 254
Automatic transmission fluid 254
Page 418 of 425

417 Index
Refrigerant, Air conditioning 391
Refueling 247
Regular checks 248
Remote control, SmartKey 98
Remote door unlock, Tele Aid 220
Replacing bulbs 359
Reporting safety defects 22
Research Octane Number see RON
Reset button, in Instrument cluster 114,
292
Residual heat utilization 197
Restraint systems 60
Air bags 60, 62
Child restraints 60
Children in the vehicle 75
Emergency Tensioning Device
(ETD) 60, 74
Seat belts 60, 71
Reverse gear position, Automatic
transmission 169
Rims 285, 381
Roadside Assistance 16, 217
RON 247, 402
Roof rack 230S
Safety
Driving safety systems 81
Occupant 60
Reporting defects 22
Safety belts see Seat belts
Seat belt force limiter 74
Seat belts 60
Children in the vehicle 75
Fastening seat belts 45
Message in the multifunction
display 352
Proper use of 46
Safety guidelines 64
Telltale 308
Warning lamp 308–309
Seating capacity 263
Seats 41
Selector lever see Gear selector lever
Self-test
Lamps in the instrument cluster 300
OCS 71
Tele Aid 215Service and warranty information 14
Service intervals see Service indicator
Service life
Tires 260
Vehicle batteries 256
Service see Maintenance
Service, Parts 376
Settings
Control system menus 120
Control system submenus 121
Factory, SmartKey 99
Individual, Vehicle 129
Menus and submenus 119
Resetting to factory settings, Control
system 129
Selective, SmartKey 100
Time 133
Shift program mode selector switch, Auto-
matic transmission 175
Shifting, Automatic transmission 169
Side air vents 31
Page 419 of 425

418 Index
Side marker lamps
Messages in the multifunction
display 343
Replacing bulbs 360
Side windows see Power windows
Sidewall 285
SmartKey see Key, SmartKey
Snow chains 291
Snow tires* 290
Spare fuses 373
Spare parts service 376
Speed setting
Cruise control 205
Speed settings
Cruise control 205
Speedometer 29
SRS 60, 402
Indicator lamp 29, 310
Messages in the multifunction
display 323
Standing lamps 106
Standing water, Driving trough 243Start button 48
Starter battery 256, 367
Starter switch 27, 40
Starting difficulties, Engine 49
Starting the engine 47
Steering wheel 42
Buttons 30
Steering wheel gearshift control
Indicator lamp 307
Steering wheel gearshift control one-touch
gearshifting
Automatic transmission 177
Stolen Vehicle Recovery services 221
Storage compartments 206
Armrest 206
Center 207
Map pocket, Passenger footwell 206
Parcel net in trunk 207
Rear 207
Storing tires 261
Submenus see Control system submenus
Sun visors 183
Supplement Restraint System see SRS
Symbols used in this Operator’s
Manual 19T
Tachometer 29
Overspeed range 116
Tail lamps
Messages in the multifunction
display 344
Replacing bulbs 359
Technical data 374
Air conditioning refrigerant 391
Brake fluid 392
Coolants 394
Electrical system 386
Engine 380
Engine oil additives 391
Engine oils 391
Fuel requirements 393
Fuels, coolants, lubricants etc. 389
Gasoline additives 393
Main dimensions 387
Poly-V-belt 379
Premium unleaded gasoline 392