Maserati Quattroporte Automatic 2009, Owner'S Manual

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Tires
Other tire markings
Manufacturer name
tire model.
Size information
Example:
245 = nominal section width in mm.
35 = height of tire cross-section
expressed as percentage of width
R = radial construction
20 = rim diameter in inches.
ZR = speed rating indicating the speed
at which the tire can carry the load
corresponding to the load capacity
index.
Tire placard/label
The tire and loading Information label
stuck on the driver's door jamb
specifies the correct size and pressure
of tires to be used on the
Quattroporte. It also specifies the total
weight the car can carry, called the car
capacity weight. This includes the
weight of driver, passenger and
luggage.
For tire pressure information, refer
also to 'Technical Data' section of this
manual.
Also found on the driver's door jamb is
the Certification label which stipulates
the Gross Vehicle Weight Rating
(GVWR). The GVWR includes the
weight of the car, occupants, fuel and
lug gage. Never exceed the GVWR or
the Gross Axle Weight Rating (GAWR)
for either the front or rear axle. The
maximum load which may be carried in
the rear luggage compartment is 66 lbs
(30 Kg).
Note that the Quattroporte is not
designed to tow a trailer, and no such
attempt should be made.
WARNING: Do not exceed the GVWR,
or front or rear GAWR. Exceeding
these limits may cause unstable
handling or car or tire damage which
could cause a crash in which you or
others could be seriously injured or
killed.
Information on tire care, including
maintenance and safety practices can
also be found on page 252; tire and
wheel size information is on page 233
and the information on the tire
pressure monitoring system (tpms) can
be found on page 47.
WARNING: In order to achieve the
optimum handling characteristics, the
wheel and tire sizes on the
Quattroporte are different at the front
and at the rear. This means that
interchanging of wheels and tires
between axles is not permissible.
Failure to adhere to this requirement
will adversely affect the handling of
the car and may result in an accident in
which you or others could be killed or
seriously injured.
Importance of proper inflation
pressure
– Use a good quality tire pressure
gauge and always replace the tire
valve dust cap to prevent the ingress
of dirt and moisture into the valve,
which could cause leakage. Many
gas stations provide tire inflation
facilities.
– The tires should be regularly
inspected for signs of cuts, abrasions
or other dam age, and for any
uneven tread wear patterns. Uneven
treadwear may indicate that the
suspension geometry or dampers
require attention from your dealer.
– Overloading your tires can cause
overheating as a result of too much
friction. You could have a blowout
and a serious accident in which you
could be killed or seriously injured.
See 'Tire Placard Label'.
– Underinflated tires pose the same
danger as overloaded tires. The
resulting accident could cause
serious injury, or death. Check all
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