Wheels And Tyres; Notes On The Wheels And Tyres; Notes On Noise Or Abnormal; Handling - SMART #1 2023 User Manual

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Wheels and tyres

Notes on the wheels and tyres

Notes on noise or abnormal handling
When driving, be aware of vibration, noise,
and handling abnormalities, such as ve-
hicle veering, which may indicate damaged
wheels or tyres. If you suspect a tyre fail-
ure, slow down immediately, come to a
safe stop as soon as possible, and inspect
the wheels and tyres for damage. Hidden
tyre damage could also lead to unusual
handling characteristics. If you see no
signs of damage, have your wheels and
tyres checked at a smart Authorized Serv-
ice Partner.

Notes on regularly inspecting the wheels

and tyres

WARNING Risk of accident due to
damaged tyres
Damaged tyres can cause tyre pressure
loss.
As a result, you could lose control of
your vehicle.
► Check the tyres regularly for signs of
damage and replace any damaged
tyres immediately.
Inspect the tyre condition regularly. It is
recommended to have the tyres inspected
every month or before each special situa-
tion, such as a long trip, a vehicle payload
change or driving off road.
● Check the tyre pressure
● Visually check the wheels and tyres for
damage.
● Check the valve stem caps.
● Visually check the tyre tread depth and
the tyre tread over the entire width.
Sufficient tread depth is vital for tyre
performance. Tyres with tread depth
under 3 millimeters are more likely to
slip on wet surface and not suitable for
use. Tyres with tread depth under 4
millimeters have reduced performance
in mud and snow and are not suitable
for winter driving.
When the tread depth is below 1.6 milli-
meters , wear indicators appear on the
(→ Page 171).
tread surface and the tyre shall be
replaced.

Notes on snow chains

Snow chains should only be used on snowy
or icy roads or when the local laws and
regulations require it, and the vehicle
speed should not exceed 40 km/h(25 mph)
or the manufacturer's limit, whichever is
lower.
When entering a snow free or ice free road
section, the snow chains should be re-
moved immediately.
WARNING Possible risks caused by
installing snow chains
Observe the following requirements
when using snow chains:
► Remove the wheel decoration covers
before installing snow chains.
► Do not deflate the tyres to install
snow chains. Reinflating the tyres
could over-tighten the snow chains
and cause tyre damage.
► Snow chains can only be installed on
the rear wheels.
► During driving of the vehicle with
snow chains, avoid sharp turns and
emergency braking.
► For vehicles equipped with driver as-
sistance systems, do not use driver
assistance systems when snow
chains have been installed.
► When using snow chains, please
abide by local laws and regulations.
► Follow the installation instructions
specified by the chain manufacturer.
► Use quality snow chains that meet
the designed requirements of tyre
and rim dimensions of this model.
► For uncertainties in the use of snow
chains, consult a smart Authorized
Service Partner.
►
This vehicle is not equipped with snow
chains. Purchase snow chains by your-
self for use. Damage to the vehicle or
accidents due to incorrect use of snow
chains are not covered by warranty.