Porsche 911 Carrera Owner's Manual page 290

7. 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.
Please observe the chapter "WHEEL BOLTS"
on page 285.
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
gauge
1. Remove the valve stem cap from the tire.
2. Press the pressure gauge onto the valve stem.
Note on operation
Do 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 permissible tire pressure.
This information can be found on the tire
pressure plate in the left door aperture or in
the chapter Technical Data.
Please observe the chapter "TIRE PRESSURES
FOR COLD TIRES" on page 334.
288
Practical Tips, Emergency Service
4. Remove the pressure gauge.
Please observe the chapter "TPC TIRE
PRESSURE MONITORING" on page 127.
911 Carrera, 911 Carrera S
Mounting 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 tting
snow chains.
To permit the fitting of snow chains, have the
5 mm spacers removed on all 4 wheels.
To fit/remove the spacers: Please consult an
authorized Porsche dealer.
5 mm spacers
Required scope of parts if the spacers are
removed
Short countersunk screws (M6x12) Part No:
900.269.047.09
1 set short wheel bolts Part No: 996.361.203.02
Short anti-theft protection Part No:
996.361.057.01