2005 PORSCHE BOXSTER rims

Practical Tips, Emergency Service
203
Tires/Wheels The original equipment tires and wheel rims on
your Porsche comply with all applicable Federal
Motor Vehicle Safety Standards.
For your safety remember the following:
– Wheel rims and wheel bolts are matched to fit
your Porsche.
– If you intend to use other than original equip-
ment wheels, be sure that they conform to
Porsche specifications for your model.
Only tires with the same make and with the
same specification code (e.g. “N0”, “N1”...)
can be mounted.
– The use of wheel rims and wheel bolts that do
not meet specifications of the original factory
installed equipment will affect the safe opera-
tion of your vehicle.
– Before you plan on exchanging wheels, or
snow tires already mounted on the wheel rims,
consult your authorized Porsche dealer. Your
dealer has the technical information necessary
to advise you which wheel rims and wheel bolts
are compatible with the original factory instal-
lations.
Danger!
Risk of loss of control and serious personal
injury or death.
fIf while driving, your vehicle experiences a sud-
den vibration or ride disturbance, and/or you
suspect that possible damage to your tires or
vehicle has occurred, you should immediately
reduce your speed without excessive use of
the brakes.
fStop the vehicle as soon as possible, and in-
spect the tires.
If you cannot determine the cause for the dis-
turbance, have your vehicle towed to the near-
est Porsche or tire dealer to have your vehicle
or tire(s) inspected.
fContinuing to operate the vehicle without cor-
rection could result in a loss of control and se-rious personal injury.

Practical Tips, Emergency Service
209
Tire care fAvoid damaging tires and wheel rims.
fIf you must drive over a curb or other obstacle,
drive slowly and at an obtuse angle.
fCheck tires for uneven wear and damage
before driving off.
fRemove imbedded material.
fReplace worn or damaged tires immediately.
fKeep oil, fuel, brake fluid, etc. away from tires.
fReplace missing valve stem caps.
fKeep tires inflated correctly.
fWash tires when washing the vehicle.
Also clean inner side of wheels.
fDo not use abrasive cleaners when washing
the wheels.
fCheck wheel rims for corrosion.
fRemove road salt, if driving in winter.
Tire damage, puncture fCheck tires for imbedded material, cuts, punc-
tures, cracks and bulges (side wall) before driv-
ing off.
In case of tire damage, where it is uncertain wheth-
er there is a break in the ply with all its conse-
quences or tire damage caused by thermal or me-
chanical overloading due to loss of pressure or
any other prior damage, we recommend that the
tire be replaced for safety reasons.
If one faulty tire is replaced it should be noted that
the difference in tread depth on one axle must not
exceed 30 %.
Handling inconsistencies may result.
fPerform a visual inspection if necessary.
Danger!
Risk of serious personal injury or death.
Driving the vehicle with low tire pressure
increases risk of a tire failure and resulting
loss of control. Furthermore, low tire pres-
sure increases rate of wear of the affected
tires.
fCheck tires – including sidewalls – regularly for
foreign bodies, nicks, cuts, cracks and bulges.
fAfter driving off road, examine tires for signs
of damage such as cuts, tears, bulges or for-
eign objects stuck in the tread. Replace a dam-
aged tire if necessary.
fCross curb edges slowly and at right angles if
possible.
Avoid driving over steep or sharp curbs.
fIn cases of doubt, have the wheel (particularly
the inner side) checked by an authorized Porsche dealer.

216
Practical Tips, Emergency Service
Loading InformationDefinitionsThe Curb weight - actual weight of your vehicle -
vehicle weight including standard and optional
equipment, fluids and emergency tools. This
weight does not include passengers and cargo.
The Gross Vehicle Weight is sum of the curb
weight and the weight of passengers and cargo
combined.
The Gross Vehicle Weight Rating is the maxi-
mum total weight of vehicle, passengers, luggage
and optional equipment.
The Gross Axle Weight Rating is the maximum
load limit for the front or the rear axle. This infor-
mation is located on the safety compliance sticker
located in the driver’s side door jamb.
For determining the compatibility of the tire and
vehicle load capabilities:
fPlease observe the chapter “TIRES, RIMS,
TRACKS” on Page 262.
The load capacity coefficient (e.g. “101”) is a min-
imum requirement.The Gross Combined Weight Rating is the
maximum total weight rating of vehicle, passen-
gers and cargo.
The Vehicle Capacity Weight - Load Limit - is
the maximum total weight limit specified of the
load (passengers and cargo) for the vehicle. This
is the maximum weight of passengers and cargo
that can be loaded into the vehicle. This informa-
tion can be found on the tire pressure plate.
The maximum loaded vehicle weight is the
sum of curb weight, accessory weight, vehicle ca-
pacity weight and production options weight.
The load rating is the maximum load that a tire
is rated to carry for a given inflation pressure.
The maximum load rating is the load rating for
a tire at the maximum permissble inflation pres-
sure.
The cargo capacity is the permissible weight of
cargo, the substracted weight of passengers from
the load limit.
fNever exceed the permissible limits.
Danger!
Risk of personal injury, loss of control and
damage to vehicle.
fNever exceed the specified axle loads. Over-
loading can shorten the service life of the tires
and car, as well as lead to dangerous vehicle
reactions and long braking distances. Damage
due to overloading is not covered by the vehi-cle warranty.

262
Vehicle Identification, Technical Data
Tires, Rims, Tracks Boxster Tires Rim Rim offset Track
Summer tiresfront 205/55 ZR 17 91Y 6.5 J x 17 H2 55 mm 58.7 in./1490 mm
rear * 235/50 ZR 17 91Y 8 J x 17 H2 40 mm 60.4 in./1534 mm
or front 235/40 ZR 18 91Y 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 ZR 18 101Y 9 J x 18 H2 43 mm 60.2 in./1528 mm
or front 235/35 ZR 18 87Y 8 J x 19 H2 57 mm 58.5 in./1486 mm
rear 265/35 ZR 19 94Y 9.5 J x 19 H2 46 mm 60.0 in./1522 mm
Snow tiresfront 205/55 R 17 91V M+S 6.5 J x 17 H2 55 mm 58.7 in./1490 mm
rear * 235/50 R 17 96V M+S 8 J x 17 H2 40 mm 60.4 in./1534 mm
or front 235/40 R 18 91V M+S 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear * 255/40 R 18 95V M+S 9 J x 18 H2 43 mm 60.2 in./1528 mm
The load capacity coefficient (e.g. “91”) and maximum speed code letter (e.g. “V”) are minimum requirements.

Index
275
RRadiator fans .............................................. 171
Radio reception .......................................... 139
Rain sensor ................................................ 110
Range on remaining fuel ........................87
, 100
Rear fog light .....................................108, 249
Rear lid ...................................................... 132
Rear spoiler............................................62, 63
Rear view mirrors ......................................... 31
Rear window defogger.................................. 33
Rear wing
Retractable........................................... 62
Relays ........................................................ 226
Release button ........................................... 147
Remote control ............................................. 18
Replacement key .......................................... 17
Replacing bulbs .......................................... 239
Replacing wiper blades................................ 169
Retractable spoiler........................................ 62
Rims
Diameter ............................................ 215
Rim width ........................................... 215
Running in .................................................... 14
SSafety belts ..........................................42
, 199
Warning light ........................................ 43
Safety compliance sticker ........................... 258
Sealing set ................................................. 220
Seals, care of ............................................. 197
Seat ............................................................ 34
Adjustment ........................................... 34
Heating ................................................ 38Memory................................................36
Selector lever .............................................147
Selector lever position indicator ............ 81
, 149
Shifting gear ...............................................146
Shiftlock .....................................................147
Side lights ..................................................249
Side marker light ............................... 108, 248
Side vents ..................................................120
Snow chains .............................. 213
, 263
, 264
Snow tires ......................................... 212, 262
Sockets .....................................................124
Spare key .....................................................17
Spare wheel ...............................................264
Speed code letter .......................................214
Speed control .............................. 76
, 113
, 114
Speed limit .......................................... 88, 214
Speedometer................................................78
Spoiler .........................................................62
Fixed ....................................................63
Retractable ...........................................62
Sport mode ..................................... 57
, 60, 61
Sports seat ..................................................34
Stability management system (PSM) ...............58
Starting ................................................. 67, 68
Starting and stopping the engine ....................67
Steering wheel
Adjustment ...........................................39
Buttons ................................................40
Lock ................................. 67
, 68, 69, 70
Rocker switches..................................147
Toggle switches ..................................147
Stopwatch ....................................................92
Storage options ..........................................126
Storing your Porsche..................................200
Sun visors ....................................................41Switching passenger’s airbag on and off ........ 48
TTachometer ................................................. 79
Tail light ..................................................... 249
Tank .................................................. 178
, 179
cap ................................................... 179
Ventilation system.............................. 184
Telephone .................................................. 141
Temperature setting........................... 114, 117
Temperature, outside indicator ...................... 83
Test stand, measurements ............................ 60
Theft protection ........................................... 16
Tiptronic .................................................... 147
Indicator .............................................. 81
Tires ................................... 14
, 203
, 262
, 263
Checking pressure............................. 223
Inscription .......................................... 214
Loading information ............................ 216
Pressure................................ 5
, 206
, 263
Pressure plate.................................... 259
Sealant .............................................. 220
Sidewall ............................................. 214
Size .................................................. 214
Tires and tire care ...................................... 203
Tools ......................................................... 136
Towing .............................................. 254, 255
Track ........................................................ 262
Transmission ............................. 145
, 146
, 261
Fluid .......................................... 190, 266
Trunk entrapment ....................................... 132
Turn signals ......................................... 79, 109