User Guide

244 Communications breakdown
Tyres and wheels
Tyres and wheels
General information
In the interests of safety, smart gmbh
recommends that you use tyres that it has
specially approved for your car. These ty
res have been chosen to suit control sys
tems such as abs and esp. If you use other
tyres, smart gmbh is unable to accept any
responsibility for damage resulting from
their use. Information on tyres is available
from any qualified specialist workshop,
e.g. a smart center.
If you are using tyres that have not been
tested and recommended by smart gmbh,
their characteristics such as road behav
iour, noise and wear rate etc. could be
poorer.
Dimensional deviations and a change in
the way the tyres are compressed under
load during operation could in addition
cause them to rub against the body or axle
components. This could result in damage
to the tyre or vehicle.
smart gmbh neither tests nor recommends
the use of retreaded tyres. The prelimi
nary stages of damage cannot always be
detected on tyres that are being retreat
ed. smart gmbh is therefore unable to
guarantee driving safety with retreaded
tyres.
Modifications to the brake system and
wheels and the use of spacer and brake
dust rings are not permissible. In both
cases the vehicle's operating approval
will be nullified.
Accident risk!
Only use wheels of the dimensions
stated in the vehicle registration doc
uments. If other wheel sizes are used:
 The wheel brakes or chassis compo
nents could be damaged.
 Clearance between the wheels and ty
res is no longer assured.