Engine
Tire size
Tire pressure
psi
kPa
bar
The tire inflation pressure is also listed on the sticker inside the driver door jamb
⇒
fig. 93
. The tire
inflation pressures for the road tires are listed on this label. The inflation pressure for the compact
spare is as specified on the tire pressure label or on a separate label for the compact spare, if there
is one. In the event of a discrepancy between the above figures and the tire pressures listed on the
tire inflation pressure label, the pressures listed on the label are the ones you should use. The listed
pressure applies to all road tires.
Tread depth and tread wear indicators
Fig. 94
Tread pattern: Wear indicator.
¤
Please first read and note the introductory information and heed the WARNINGS
Tread depth
Most driving situations require as much tread depth as possible and similar tread depth for the tires on
the front and rear wheels. This is especially true when driving in winter weather, at low temperatures
and under wet conditions
⇒
.
In most countries the legally permissible minimum tread depth is 1/16 in. (1.6 mm), as measured in
tread grooves next to the wear indicators. Please be sure to obey country-specific legal requirements.
Winter tires
are no longer suitable for winter operation once the tread pattern is worn down to a depth
of 3/16 in. (4.8 mm).
The tread depth of new tires can differ between tire models and manufacturers because of the
different design features and tread patterns.
Tread wear indicator (TWI) in the tire
The 1/16 in. (1.6 mm) high wear indicators are molded into the bottom of the tread grooves of the
original tires running across the treads
⇒
fig. 94
. Several wear indicators are evenly spaced around the
tire. Markings on the sides of the tires (for example “TWI” or symbols) show the position of the wear
indicators.
Wear indicators show when the tires are worn down. The tires must be replaced no later than when
the tread pattern is worn down to the wear indicators.