Volvo XC70 2011, Owner'S Manual

Page: 230 / 316

06 Wheels and tires
Tire inflation
06
230
After driving a distance of approximately
1 mile (1.6 km), the tires are considered to be
hot. If you have to drive farther than this dis-
tance to pump your tire(s), check and record
the tire pressure first and add the appropriate
air pressure when you get to the pump.
If checking tire pressure when the tire is hot,
never "bleed" or reduce air pressure. The tires
are hot from driving and it is normal for pres-
sures to increase above recommended cold
pressures. A hot tire at or below recommended
cold inflation pressure could be significantly
under-inflated.
To check inflation pressure:
1. Remove the cap from the valve on one tire,
then firmly press the tire gauge onto the
valve.
2. Add air to reach the recommended air
pressure.
3. Replace the valve cap.
4. Repeat this procedure for each tire, includ-
ing the spare.
5. Visually inspect the tires to make sure there
are no nails or other objects embedded
that could puncture the tire and cause an
air leak.
6. Check the sidewalls to make sure there are
no gouges, cuts, bulges or other irregular-
ities.
NOTE
•
If you overfill the tire, release air by
pushing on the metal stem in the center
of the valve. Then recheck the pressure
with your tire gauge.
•
Some spare tires require higher inflation
pressure than the other tires. Consult
the tire inflation tables or see the infla-
tion pressure placard.
Tire ratings
Speed ratings
The speed ratings in the table translate as fol-
low:
Speed ratings
M 81 mph (130 km/h)
Q 100 mph (160 km/h)
T 118 mph (190 km/h)
H 130 mph (210 km/h)
V 149 mph (240 km/h)
Speed ratings
W 168 mph (270 km/h)
Y 186 mph (300 km/h)
Load ratings
See page 233 for an explanation of the load
rating on the sidewall of the tire.