2007 MERCEDES-BENZ SLR spare tire

Contents
Flat tire .............................................. 362
Preparing the vehicle ................... 362
Sealing tires with TIREFIT ............. 362
Batteries ............................................ 367
Charging the batteries ................. 368
Towing the vehicle ............................. 370
Installing/reinstalling towing
eye bolt ........................................ 372
Points to bear in mind .................. 372
Transporting the vehicle............... 372
Fuses ................................................. 373
Technical data................................. 374
Spare parts service ............................ 376
Warranty coverage............................. 377
Loss of Service and Warranty
Information Booklet ..................... 377
Identification labels ........................... 378
Engine number ............................. 378
Layout of poly-V-belt drive ................. 379
Engine................................................ 380Rims and tires .................................... 381
Mixed size tires ............................. 382
Winter tires* ................................. 384
Electrical system ................................ 386
Main dimensions ................................ 387
Weights .............................................. 388
Fuels, coolants, lubricants, etc. .......... 389
Capacities ..................................... 389
Engine oils .................................... 391
Engine oil additives ....................... 391
Air conditioning refrigerant ........... 391
Brake fluid..................................... 392
Premium unleaded gasoline .......... 392
Fuel requirements ......................... 393
Gasoline additives......................... 393
Coolants ....................................... 394
Windshield washer system and
headlamp cleaning system............ 397
Technical terms............................... 398
Index................................................. 404

271 Operation
Tires and wheels
Reactivating the TPMS
The tire inflation pressure monitor must be
reactivated in the following situations:

if you have changed the tire inflation
pressure

if you have replaced the wheels or tires

if you have installed new wheels or
tires
Using the tire placard on the driver’s
door B-pillar (
page 267) or, if avail-
able, the inside of the fuel filler flap,
make sure the tire inflation pressure of
all four tires is correct.
Warning!G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to
overheat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
iOperating radio transmission equipment
(e.g. wireless headsets, two-way radios) in or
near the vehicle could cause the TPMS to
malfunction.Warning!G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.


275 Operation
Tires and wheels
General:
Depending on the design standards used,
the tire size molded into the sidewall may
have no letter or a letter preceding the tire
size designation.
No letter preceding the size designation
(as illustrated above): Passenger car tire
based on European design standards.
Letter “P” preceding the size designation:
Passenger car tire based on U.S. design
standards.
Letter “LT” preceding the size designation:
Light Truck tire based on U.S. design
standards.
Letter “T” preceding the size designation:
Temporary spare tires which are high
pressure compact spares designed for
temporary emergency use only.
Tire width
The tire width1 (
page 274) indicates
the nominal tire width in mm. Aspect ratio
The aspect ratio2 (
page 274) is the
dimensional relationship between tire
section height and section width and is
expressed in percentage. The aspect ratio
is arrived at by dividing section height by
section width.
Tire code
The tire code3 (
page 274) indicates
the tire construction type. The “R” stands
for radial tire type. Letter “D” means diag-
onal or bias ply construction; letter “B”
means belted-bias ply construction.
At the tire manufacturer’s option, any tire
with a speed capability above 149 mph
(240 km/h) can include a “ZR” in the size
designation (for example: 245/40 ZR 18).
For additional information, see “Tire speed
rating” (
page 276).Rim diameter
The rim diameter4 (
page 274) is the
diameter of the bead seat, not the
diameter of the rim edge. Rim diameter is
indicated in inches (in).
Tire load rating
The tire load rating5 (
page 274) is a
numerical code associated with the
maximum load a tire can support.
For example, a load rating of 91 corre-
sponds to a maximum load of 1356 lb
(615 kg) the tire is designed to support.
See also “Maximum tire load”
(
page 280) where the maximum load as-
sociated with the load index is indicated in
kilograms and lb.

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.

311 Practical hints
What to do if ...
ProblemPossible cause/consequenceSuggested solution
HLow tire pressure telltale for the
TPMS illuminates continuously.The TPMS detects a loss of pressure in at
least one tire.Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers. Observe the traffic
situation around you.
Read and observe messages in the
multifunction display.
The low tire pressure telltale goes out
once the TPMS has been reactivated after
the tire inflation pressure has been
corrected.
Warning!G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.

Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main dimensions
Weights
Fuels, coolants, lubricants, etc.

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