2006 PORSCHE BOXSTER snow chains

Controls, Instruments
65
Examples of PSM control operations
– If the “front wheels of the vehicle drift” on a
bend, the rear wheel on the inside of the bend
is braked and the engine power is reduced if
necessary.
– If the rear of the vehicle swings out on a bend,
the front wheel on the outside of the bend is
braked.
PSM should always be switched on during
“normal” driving.
However, it may be advantageous to switch off
PSM temporarily in exceptional situations, for
example:
– On a loose surface or in deep snow,
– When “rocking the vehicle free”, or
– When using snow chains.
Switching off PSMfPress the PSM OFF button.
PSM is switched off after a short delay.
The light-emitting diode in the button is illumi-
nated.
When the PSM is switched off, the multifunc-
tional PSM light on the instrument panel is lit
and a message is shown by the on-board
computer.
An acoustic signal also sounds.The following functions stabilise the vehicle in
emergency situations, even with PSM switched
off:
– When PSM is off, the vehicle is stabilised as
soon as one of the two front wheels enters the
ABS control range.
– When PSM is off and Sport mode is on, the
vehicle is stabilised as soon as both front
wheels enter the ABS control range.
One-sided spinning of the wheels is prevented,
even with PSM switched off.
Switching PSM back onfPress PSM OFF button.
PSM is switched on after a short delay.
The light-emitting diode in the button and the
multifunctional PSM light go out.
The on-board computer shows a message.

232
Practical Tips, Emergency Service
Snow chains
Caution!
Risk of damage to body, axle or brake com-
ponents.
fFit snow chains only to the rear wheels, and
only with the tire/rim combination listed in the
Technical Data.
To ensure adequate clearance between chain
and body, Porsche recommends only the use
of fine-link chains such as those approved by
Porsche.
fFollow instructions issued by the supplier of the chains.
Different states and countries have varying statu-
tory requirements regarding maximum speed.
Check with local authorities for possible restric-
tions.
Remove chains as soon as the roads are free of
ice and snow. Fitting snow chains
The use of snow chains is not permitted when
5 mm spacers are mounted.
Caution!
Risk of damage to the wheel housings if the
5 mm spacers are not removed before fitting
snow chains.
fTo permit the fitting of snow chains, have the 5 mm spacers removed on all 4 wheels.
fTo fit/remove the spacers:
Please consult an authorized Porsche dealer.
fPlease observe the chapter “SPACERS” on
Page 244.
Tire designations Due to new speed and load ratings for radial tires,
new designations have come into force for snow
tires for your Porsche.
The designation to be used for ZR tires is e.g.,
265/40 ZR 18 (Z = code letter for radial tires for
speeds above 150 mph / 240 km/h).

244
Practical Tips, Emergency Service
SpacersfUse the spacers only together with wheels and
fastening parts approved by Porsche.
Before having spacers fitted, find out about the
current authorisation status.
Mounting an emergency spare wheel
If 5 mm spacers are fitted, these must not be
removed to mount an emergency spare wheel.
Fitting snow chains
The use of snow chains is not permitted when
5 mm spacers are mounted.
Caution!
Risk of damage to wheel housings if the
5 mm spacers are not removed before fitting
snow chains.
fIn order to enable the fitting of snow chains,
have the 5 mm spacers removed on all 4wheels.Note on operation
fTo fit/remove the spacers:
Please consult an authorized Porsche dealer.
Removing the spacersfPlease observe the chapter “CHANGING A
WHEEL” on Page 242.
1. Unscrew both countersunk screws (M6x16) on
the wheel hub.
2. Remove the spacer.
3. Fasten the brake disc with the short M6x12
countersunk screws, part No.
900.269.047.09.
Tightening torque 10 Nm (7.5 ftlb.).
4. For wheel mounting without a spacer, 5 mm
shorter wheel bolts (part No:
996.361.203.02) must be used.
Tightening torque 130 Nm (96 ftlb.).Required scope of parts if the spacers are
removed
Short countersunk screws (M6x12)
Part No: 900.269.047.09
1 set of short wheel bolts
Part No: 996.361.203.02
Short anti-theft protection devices
Part No: 996.361.057.01

Vehicle Identification, Technical Data
283
fWhen changing tires or fitting new ones: Please observe the chapter “WHEEL BOLTS” on Page 241.
Danger!
Installation of sizes not authorized by
Porsche may have a dangerous effect on
the driving stability and could result in
severe personal injury or death.
f Before mounting new tires, check with yourPorsche dealer about the current release status.
Boxster S Tires Rim Rim offset Track
Summer tires
front 235/40 ZR 18 91Y 8 J x 18 H2 57 mm 58.5 in./1486 mm
rear 265/40 ZR 18 101Y XL 9 J x 18 H2 43 mm 60.2 in./1528 mm
or front 235/35 ZR 19 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 tires front 255/40 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 sp eed code letter (e.g. “Y”) are minimum requirements.
Tire and rim sizes Extensive tests are performed before specific tires and wheels are approved by Porsche. Your Porsche dealer has information
about approved tires and wheels and is happy to assist you. If aftermarket tires and/or wheels are installed which are not
approved by Porsche, the vehicle’s roadab ility and handling characteristics might be impaired. Since Porsche has no data on
such combinations, Porsche cannot st and behind the safety or durability of these aftermarket combinations.
* Snow chains Can be mounted only on the rear wheels; maximum speed 30 mph/50 km/h. Use only Porsche authorized fine-link
cross-type or edge chains. Snow chain clearance can be guaranteed on ly with the tire + rim combination marked.

Index
295
RRadiator fans .............................................. 187
Radio reception .......................................... 155
Rain sensor ................................................ 126
Range on remaining fuel ........................93
, 114
Rear fog light .....................................124, 269
Rear lid ...................................................... 148
Rear spoiler............................................68, 69
Rear view mirrors ......................................... 31
Rear window defogger.................................. 33
Rear wing
Retractable........................................... 68
Relays ........................................................ 246
Release button ........................................... 163
Remote control ............................................. 18
Replacement key .......................................... 17
Replacing bulbs .......................................... 259
Replacing wiper blades................................ 185
Retractable spoiler........................................ 68
Rims
Diameter ............................................ 234
Rim width ........................................... 234
Running in .................................................... 14
SSafety belts ..........................................42
, 217
Warning light ........................................ 43
Safety compliance sticker ........................... 278
Sealing set ................................................. 239
Seals, care of ............................................. 215
Seat ............................................................ 34
Adjustment ........................................... 34
Heating ................................................ 38Memory................................................36
Selector lever .............................................163
Selector lever position indicator ............ 87
, 165
Shifting gear ...............................................162
Shiftlock .....................................................163
Side lights ..................................................269
Side marker light ............................... 124, 268
Side vents ..................................................136
Snow chains .............................. 232
, 283
, 284
Snow tires ......................................... 231, 282
Sockets .....................................................140
Spacers .....................................................244
Spare key .....................................................17
Spare wheel ...............................................284
Speed code letter .......................................233
Speed control .............................. 82
, 129
, 130
Speed limit .......................................... 94, 233
Speedometer................................................84
Spoiler .........................................................68
Fixed ....................................................69
Retractable ...........................................68
Sport mode ..................................... 63
, 66, 67
Sports seat ..................................................34
Stability management system (PSM) ...............64
Starting ................................................. 74, 75
Starting and stopping the engine ....................74
Steering wheel
Adjustment ...........................................39
Buttons ................................................40
Lock ................................. 74
, 75, 76, 77
Rocker switches..................................163
Toggle switches ..................................163
Stopwatch ....................................................98
Storage options ..........................................142
Storing your Porsche..................................218Sun visors ................................................... 41
TTachometer ................................................. 85
Tail light ..................................................... 269
Tank .................................................. 196
, 197
cap ................................................... 197
Ventilation system.............................. 202
Telephone .................................................. 157
Temperature setting........................... 130, 133
Temperature, outside indicator ...................... 89
Test stand, measurements ............................ 66
Theft protection ........................................... 16
Tiptronic .................................................... 163
Indicator .............................................. 87
Tire pressure monitoring ............................. 103
Tires ................................... 14
, 221
, 282
, 283
Checking pressure............................. 241
Inscription .......................................... 233
Loading information ............................ 235
Pressure................................ 5
, 224
, 283
Pressure plate.................................... 279
Sealant .............................................. 239
Sidewall ............................................. 233
Size .................................................. 233
Tires and tire care ...................................... 221
Tools ......................................................... 152
Towing .............................................. 274, 275
Track ........................................................ 282
Transmission ............................. 161
, 162
, 281
Fluid .......................................... 208, 286
Trunk entrapment ....................................... 148
Turn signals ......................................... 85, 125

296UUndercoating ............................. 200
, 214
, 215
VValves ........................................................ 229
Vanity mirror................................................. 41
Vehicle
Care .................................................. 209
Data bank........................................... 278
Identifikation number ........................... 278
Laying up the car................................ 251
Putting into operation .......................... 252
Washing ............................................. 209
Ventilation .................................................. 133
Vents .................................................130
, 133
Viscosity, engine oil.................................... 190
WWarning messages ..................................... 116
Washer fluid .......................................202
, 286
Washer lever .............................................. 126
Washing ..................................................... 209
Weights...................................................... 287
Welcome Home Function............................. 124
Wheel ............................... 216
, 221
, 282
, 283
Bolts ............................................17, 241
Changing............................................ 242
Checking pressure..........................5, 241
Inscription .......................................... 233
Loading information............................ 235
Pressure plate .................................... 279
Sidewall ............................................. 233Size ................................................... 233
Tire pressure ................................. 5
, 224
Tire sealant ........................................ 239
Windows ............................... 25
, 28, 170
, 214
Washer nozzles................................... 126
Washer system .......................... 202, 286
Windshield wipers .............................. 126, 185
Replacing ........................................... 185
Windstop .................................................... 177
Winter driving
Battery ............................................... 250
Jump lead starting.............................. 256
Winter operation
Coolant .............................................. 186
Seals ................................................. 215
Snow chains ....................................... 232
Tires .................................................. 231
Washer fluid........................................ 202
Wiper blades....................................... 185