Seat Mii 2020 Owner's Manual page 192

Tread wear indicators
Tyre profile: tread wear indicators.
Fig. 167
Interchanging tyres.
Fig. 168
Wear indicators around 1.6 mm high can be
found on the base of the original tyre treads,
ordered at regular intervals and running
›››
across the tread Fig. 167. The letters "TWI"
1)
Follow the regulations of the country you are
driving in.
190
Practical tips
or triangles on the sidewall of the tyre mark
the position of the wear indicators.
The minimum permitted profile depth
been reached when the tyres have worn
down to the wear indicators. Replace the
›››
tyres with new ones .
Changing wheels around
To ensure that the wear is equal on all tyres
the wheels should be changed round from
time to time according to the system
›››
Fig. 168. The useful life of all the tyres will
then be about the same time.
WARNING
The tyres must be replaced at the latest
when the tread is worn down to the tread
wear indicators. Failure to follow this in-
struction could result in an accident.
Particularly in difficult driving conditions
●
such as wet or icy roads. It is important that
the tyre tread be as deep as possible and
be approximately the same on the tyres of
both the front and the rear axles.
The scant driving safety due to insuffi-
●
cient tread depth is particularly evident in
vehicle handling, when there is a risk of
"aquaplaning" in deep puddles of water
and when driving through corners, and
braking is also adversely affected.
1) have
The speed has to be adapted according-
●
ly, otherwise there is a risk of losing control
over the vehicle.
Wheel nuts
The wheel bolts are matched to the rims.
When installing different wheels (for instance
alloy wheels or wheels with winter tyres) it is
important to use the correct wheel bolts with
the right length and correctly shaped bolt
heads. This ensures that wheels are fitted se-
curely and that the brake system functions
correctly.
The wheel bolts must be clean and turn easi-
ly.
A special adapter is required to turn the anti-
›››
theft wheel bolts*
WARNING
Wheel nuts should never be greased or
oiled.
Use only wheel bolts which belong to the
●
wheel.
page 39.