Seat Mii 2014 Owner's Manual page 193

WARNING (Continued)
● When driving at high speeds and/or fully loaded, the tyre could sud-
denly overheat, burst or be subject to tread detachment, with the resul-
tant loss of control of the vehicle.
● Tyre pressures which are too high or too low reduce the service life of
the tyre, affecting the vehicle's performance.
● Tyre pressures should be checked regularly, at least once a month
and before long journeys.
● Adjust the pressures of all the tyres to the vehicle load.
● Never deflate excess pressure from hot tyres.
CAUTION
● Take care not to tilt the manometer when placing it on the valve. Other-
wise, the valve may be damaged.
● To avoid damage to the valves, always replace valve caps correctly.
Check that the caps are identical to the standard caps and have been cor-
rectly tightened.
For the sake of the environment
Under-inflated tyres will increase fuel consumption.
Safety Operation
Tread depth and wear indicators
Tread depth
Certain driving conditions require a deeper tread, as well as needing the
tread to be approximately the same on the front and rear tyres. This is par-
ticularly important when driving in winter, in cold temperatures and on wet
roads ⇒
.
The minimum tread depth required by law in the majority of cases is
1.6 mm, measured in the tread grooves next to the tread wear indicators.
Observe legal requirements in each country.

The performance of winter tyres is much reduced when the tread has worn
to 4 mm.
The tread depth of new tyres may vary, according to the type and make of
tyre and the tread pattern.
Wear indicators on the tyre
The original tyres on your vehicle have 1.6 mm high
indicators running across the tread. A number of these indicators are equal-
ly spaced around the tyre tread. Markings on the tyre walls (for example, the
letters "TWI" or other symbols) indicate the position of the wear indicators.
Advice
Wheels and tyres
Fig. 123 Tyre tread:
tread wear indicators
⇒ F ig. 123
tread wear

Technical specifications
191