Table of Contents
Advertisement
174
Wheels and tyres
NOTE Damage to tyre pressure sen-
sors from inappropriate use of tyre
fitting tools
Vehicles with tyre pressure monitoring
system: tyre pressure sensors are in-
stalled inside the wheels. Never use a
tyre fitting tool in the area of the valve.
Otherwise, damage to the tyre pressure
sensor may occur.
► Choose a smart Authorized Service
Partner for tyre replacement.
WARNING Risk of accident due to
summer tyres being damaged by low
ambient temperature
When the ambient temperature is low,
driving with summer tyres may cause
permanent tyre damage, such as cracks,
which may cause accidents to occur.
► smart recommends the use of 4-
season tyres or winter tyres for driv-
ing in low temperature or on snowy
and icy roads.
Tyres that are not approved for the vehicle
by smart or are not being used correctly
can impair the operating safety.
Note the following when replacing tyres:
● Only use tyres of the same brand, size,
load-bearing capacity, speed rating,
structure and tread pattern, and the
load-bearing capacity of the replace-
ment tyres shall not be lower than the
original ones.
● Observe the requirements of wheel dy-
namic balance.
● Never make any modifications to the
brake system, the wheels or the tyres.
● Vehicles with tyre pressure monitoring
system: all fitted wheels must come
with functioning tyre pressure sensors.
● When installing a wheel, torque the
wheel bolts to the specification: 180
N·m.
● Break in new tyres at speeds below 80
km/h for the first 100 km.
● Ultraviolet rays, extreme temperatures,
high load and environmental conditions
cause tyres to age over time. It is rec-
ommended to have tyres replaced every
6 years, regardless of tread depth.
For further information on wheels and
tyres, contact a smart Authorized Service
Partner.
At the same time, observe following infor-
mation on other relevant subjects:
● Notes on the tyre pressure
171).
● Tyre pressure table
● Wheel dynamic balance requirements
(→ Page
197).
Notes on rotating the wheels
WARNING Risk of injury due to rotat-
ing wheels
Note the following when rotating
wheels:
► Wheel bolts must be torqued to the
correct specification, or accident
may occur.
► After rotating wheels, check and ad-
just tyre pressure. Incorrect tyre
pressure may adversely affect the
tyre tread life and vehicle handling
which could lead to loss of control.
The wear patterns on the front and rear
tyres differ:
● Front tyres wear more on the shoulders
● Rear tyres wear more on the centre
Rotate wheels every 5,000 km(3,000 miles)
to 8,000 km(5,000 miles) depending on the
tread wear. During wheel rotation, make
sure that the OUTSIDE indicator on the tyre
is pointing outward.
(→ Page
(→ Page
171).
Advertisement
Table of Contents
