Tread Wear
Improper cold tire inflation pressures can cause abnormal wear patterns and reduced
tread life, resulting in the need for earlier tire replacement
.
Ride Comfort And Vehicle Stability
Proper tire inflation contributes to a comfortable ride
.
Over-inflation produces a jarring
and uncomfortable ride
.
Tire Inflation Pressures
The proper cold tire inflation pressure is listed on the driver's side B-Pillar or rear edge
of the driver's side door
.
At least once a month:
•
Check and adjust tire pressure with a good quality pocket-type pressure gauge
.
Do not
make a visual judgement when determining proper inflation
.
Tires may look properly
inflated even when they are under-inflated
.
•
Inspect tires for signs of tire wear or visible damage
.
CAUTION!
After inspecting or adjusting the tire pressure, always reinstall the valve stem cap
.
This
will prevent moisture and dirt from entering the valve stem, which could damage the
valve stem
.
Inflation pressures specified on the placard are always “cold tire inflation pressure”
.
Cold
tire inflation pressure is defined as the tire pressure after the vehicle has not been driven
for at least three hours, or driven less than 1 mile (1
.
6 km) after sitting for a minimum
of three hours
.
The cold tire inflation pressure must not exceed the maximum inflation
pressure molded into the tire sidewall
.
Check tire pressures more often if subject to a wide range of outdoor temperatures, as
tire pressures vary with temperature changes
.
Tire pressures change by approximately 1 psi (7 kPa) per 12°F (7°C) of air temperature
change
.
Keep this in mind when checking tire pressure inside a garage, especially in the
Winter
.
Example: If garage temperature = 68°F (20°C) and the outside temperature = 32°F
(0°C) then the cold tire inflation pressure should be increased by 3 psi (21 kPa), which
equals 1 psi (7 kPa) for every 12°F (7°C) for this outside temperature condition
.
Tire pressure may increase from 2 to 6 psi (13 to 40 kPa) during operation
.
DO NOT
reduce this normal pressure build up or your tire pressure will be too low
.
MAINTAINING YOUR VEHICLE
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Summary of Contents for 500e 2017
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