2006 PORSCHE 911 CARRERA wheel

238
Practical Tips, Emergency Service
Snow tires For a better grip on snow and ice, use radial M+S
tires with studs.
Check with your local Motor Vehicle Bureau for
possible restrictions.
Danger!
Risk of loss of control and damage to the
vehicle as well as serious personal injury or
death.
The standard tires profile and rubber mixture
are optimized for wet and dry driving condi-
tions, and may not prove favorable for snow
conditions.
fTherefore install M+S tires before driving in such conditions.
Before mounting snow tires, consult with
your Porsche dealer. He has the technical
information necessary to advise you on
wheel and tire compatibility.
Snow tires should have the same load capacity as
original equipment tires and should be mounted on
all four wheels.
Snow tires with studs should be run at moderate
speeds when new in order to give the studs time
to settle.
Danger!
Tires with badly worn treads and studs are
very dangerous and could cause accidents
resulting in serious personal injuries or
death.
fMake sure they are replaced immediately.
fDo not drive a vehicle equipped with snow tires
at prolonged high speed.
Snow tires do not have the same degree of
traction on dry, wet or snowfree roads as a
normal tire.
Furthermore, snow tires wear rapidly under
these conditions. Comply with all state and local laws
governing snow tire and tread depth require-
ments.
Danger!
Risk of accident and serious personal injury
or death due to excessive speed.
fAlways check the maximum speed rating on
the tire sidewall on any tire on the vehicle.
fNever exceed the maximum speed rating of the tires.
fFit winter tires to both axles well before the
cold season begins.
Your authorized Porsche dealer will be pleased
to advise you.
Maintenance note
We recommend fitting winter tires on the vehicle at
temperatures below 45°F (7°C ).
Winter tires lose their traction capability when their
tread depth falls below 5/32 in. (4 mm).

Practical Tips, Emergency Service
239
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.
fRemove chains as soon as the roads are free
of ice and snow. 911 Carrera, 911 Carrera S
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 “5 MM SPACERS”
on Page 253.
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).

Practical Tips, Emergency Service
241
E Maximum Load rating
The maximum load in kilograms and pounds can
be carried by the tire. If you replace tires always
use a tire that has the same maximum load rating
as the factory installed tire.
FRadial
The identification indicates if the tire has radial
structure.
G Term of tubeless or tube tire
Identification for tubeless tires.Speed code letterThe speed code letter indicates the maximum per-
missible speed for the tire.
This code letter is shown on the tire sidewall.
T = up to 118 mph (190 km/h)
H = up to 131 mph (210 km/h)
V = up to 150 mph (240 km/h)
W = up to 167 mph (270 km/h)
Y = up to 186 mph (300 km/h)Tip on driving
Tires with a maximum speed rating that is lower
than the specified maximum vehicle speed may be
mounted only if they bear an M+S identification on
the tire sidewall.
fPlease note that in addition to the winter tires,
all-season and all-terrain tires are also subject
to speed limits and bear this identification.
Inscription on light alloy wheelsMaintenance note
fProtect the valve inserts against soiling with
valve caps.
Use only plastic valve caps.
Soiled valve inserts can cause a gradual loss
of air.
Note on operation
fThe rim width in inches A and the rim offset F
are visible from the outside. This information
can be found near the tire valve.
A-Rim width in inches
B- Rim-flange contour code letter
C- Symbol for drop-center rim
D- Rim diameter in inches
E-Double hump
F- Rim offset in mm

248
Practical Tips, Emergency Service
Wheel Bolts
Warning!
Risk of wheel bolt breakage and wheel sepa-
ration, resulting in severe personal injury or
death.
fFollow all instructions concerning wheel bolts. fAlways clean the wheel bolts before fitting.
fApply a thin coat of Optimoly TA (aluminium
paste) on the thread and between the bolt head
and movable spherical cap ring (arrows).
The bearing surface of the spherical cap
facing the wheel must not be greased.
fReplace damaged wheel bolts.
Only use the Original Porsche wheel bolts spe-
cially designed for this vehicle type.
Tightening torque Tightening torque of wheel bolts:
130 Nm/96 ftlb.
Wheel Securing Bolts The wrench socket for the wheel securing bolts is
in the tool pocket.
To loosen or tighten the wheel bolt with anti-theft
protection, a wrench socket with the appropriate
coding must be used between the wheel bolt and
the wheel-bolt spanner.
fWhen positioning the wrench socket, ensure
that it engages fully in the teeth of the wheel
bolt.
If the wheels have to be removed at the workshop,
please do not forget to hand over the wrench
socket for the wheel securing bolts along with the
car key.
Note on operation
On vehicles with 17 mm spacers on the rear axle,
the wheels are secured with wheel nuts.
On request, separate anti-theft protection for the
wheel nuts can be mounted.
Please consult an authorized Porsche dealer.

Practical Tips, Emergency Service
249
SpacersfUse the spacers only together with wheels and
fastening parts approved by Porsche.
Before having spacers fitted, find out about the
current approval status.911 Carrera 4, 911 Carrera 4S
Danger!
Risk of accident.
17 mm spacers must only be mounted on the
rear axle together with 11.5 J x 19 (67 mm
rim offset) wheels.
fAlways remove 17 mm spacers before
mounting other wheel sizes or an emergency
spare wheel because the wheel cannot be mounted correctly.
911 Carrera, 911 Carrera SMounting an emergency spare wheel
If 5 mm spacers are mounted, 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 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.Note on operation
fTo fit/remove the spacers:
Please consult an authorized Porsche dealer.
fPlease observe the chapter “17 MM
SPACERS” on Page 252.
Please observe the chapter “5 MM SPACERS”
on Page 253.

250
Practical Tips, Emergency Service
Changing a wheel
Warning!
Risk of injury. The car may slip off the jack.
fMake sure that no one is in the vehicle when
jacking up and changing a wheel.
fAlways place the car on stable supports if work
has to be carried out under the car.
Risk of damage to the brake discs of the
Porsche Ceramic Composite Brake (PCCB).
fAlways screw in both assembly aids when changing a wheel.
Note
The tools required for changing a wheel (e.g. jack,
wheel bolt wrench, assembly aids) are not sup-
plied with the car.
Your authorized Porsche dealer will be pleased to
advise you.1. Fully apply the handbrake, engage 1st gear or
select position P and withdraw the ignition key.
2. Secure the car against rolling away, e.g. by
means of wedges under the wheels on the op-
posite side.
This is particularly important on slopes.
3. Slightly slacken the wheel bolts of the wheel to
be changed.
4. Raise the car until the wheel lifts off the
ground.
fPlease observe the chapter “LIFTING THE VE-
HICLE WITH A LIFTING PLATFORM OR GARAGE
LIFT” on Page 244.
Screw in assembly aid for vehicles without Porsche
Ceramic Composite Brake5. Remove 1 or 2 wheel bolts (see respective
illustration). Screw in assembly aids instead of
the wheel bolts.
Remove the remaining wheel bolts.
Note on operation
fTo remove or mount the spacers:
Please observe the chapter “17 MM
SPACERS” on Page 252.
Please observe the chapter “5 MM SPACERS”
on Page 253.

Practical Tips, Emergency Service
251
Screw in two assembly aids for vehicles with Porsche
Ceramic Composite Brake6. Take the wheel off and put a new wheel on.
7. Please observe the chapter “WHEEL BOLTS”
on Page 248.
Screw in wheel bolts; remove assembly aids
and screw in the remaining wheel bolts. Initially
tighten bolts in diagonally opposite sequence
so that the wheel is centered.8. Lower the car completely.
9. Tighten wheel bolts in diagonally opposite
sequence.
Immediately after changing a wheel, use a
torque wrench to check the prescribed
tightening torque (130 Nm/96 ftlb.).
Checking tire pressure with a
pressure gauge1. Remove the valve stem cap from the tire.
2. Press the pressure gauge onto the valve stem.
Note on operation
fDo not press too hard or force the valve stem
sideways, or air will escape.
If the sound of air escaping from the tire is
heard, reposition the pressure gauge.
3. Read the tire pressure on the gauge stem and
compare it to the permissble tire pressure.
This information can be found on the tire pres-
sure plate or in the chapter Technical Data.
Please observe the chapter “TIRE PRESSURES
FOR COLD TIRES” on Page 290.
4. Remove the pressure gauge.
fPlease observe the chapter “TPC TIRE PRES-
SURE MONITORING” on Page 109.

252
Practical Tips, Emergency Service
17 mm spacers
911 Carrera 4, 911 Carrera 4S
Danger!
Risk of accident.
17 mm spacers must only be mounted on the
rear axle together with 11.5 J x 19 (67 mm
rim offset) wheels.
fAlways remove 17 mm spacers before
mounting other wheel sizes or an emergency
spare wheel because the wheel cannot be mounted correctly.
fFor information on the spacers: Please
observe the chapter “SPACERS” on Page 249.
Removing the spacers
1. Unscrew the wheel bolts A with which the
spacer is fastened.
2. Remove the spacer.
3. Screw in 1 or 2 assembly aids instead of the
wheel bolts.
4. Fit wheel. 5. Please observe the chapter “WHEEL BOLTS”
on Page 248.
Insert wheel bolts A and tighten by hand.
Remove assembly aids, screw in remaining
wheel bolts.
Initially tighten bolts slightly in diagonally
opposite sequence so that the wheel is
centred.
6. Lower the car completely.
7. Tighten wheel bolts in diagonally opposite
sequence.
Immediately after changing a wheel, use
a torque wrench to check the prescribed
tightening torque of the wheel bolts
(130 Nm/96 ftlb.).fStore spacer and wheel nuts together.
Mounting the spacers
1. Remove wheel.
2. Fit the spacer with the wheel bolts A used to
fasten the wheel.
Initially tighten the wheel bolts slightly in
diagonally opposite sequence.
3. Tighten wheel bolts in diagonally opposite
sequence.
Tightening torque: 130 Nm (96 ftlb.).
4. Fit wheel.
To d o t h i s use the original wheel nuts for
fastening the wheels.
Tightening torque: 130 Nm (96 ftlb.).
fPlease observe the chapter “CHANGING A
WHEEL” on Page 250.
On request, separate anti-theft protection for the
wheel nuts can be mounted.
fPlease consult an authorized Porsche dealer.