Maintaining the tyres
The tyres must be in good condition
and the tread form must have sufficient
depth; tyres approved by our Technical
Department have tread wear indica-
tors 1 which are indicators moulded
into the tread at several points .
The tyres are the only contact between
the vehicle and the road, so it is essen-
tial to keep them in good condition.
You must make sure that your tyres
con- form to local road traffic regula-
When the tread has worn down to the
wear warning strips,
these strips will
become visible 2: it is then necessary
to replace your tyres because the tread
rubber is now only 1.6 mm deep at
most, resulting in poor road holding
on wet roads.
An overloaded vehicle, long journeys
by motorway, particularly in very hot
weather, or continual driving on poorly
surfaced minor roads will lead to more
rapid tyre wear and affect safety.
Incidents which occur when
driving, such as striking the
kerb, may damage the tyres
and wheel rims, and could
also lead to misalignment of the
front or rear axle geometry. In this
case, have the condition of these
checked by an approved dealer.
For your safety, please re-
spect the speed limit.
When they need to be re-
placed, only tyres of the
same make, size, type and profile
should be used on a single axle.
They must: either have a load ca-
pacity and a speed capacity at
least equal to the original tyres,
or correspond to those recom-
mended by your authorised
Failure to heed these instructions
could endanger your safety and
affect your vehicle’s roadworthi-
Risk of loss of control of the ve-
For safety reasons, this op-
eration must be carried out
by a specialist.
Fitting different tyres may
change your vehicle as follows:
– it may mean that your vehicle no longer conforms to current regu-
– it may change the way it handles when cornering;
– it may cause the steering to be heavy;
– It may affect the use of snow chains.
Use in winter
For safety reasons, fitting snow
chains to the rear axle is strictly for-
Chains cannot be fitted to tyres which
are larger than those originally fitted to
Snow or Winter tyres
We would recommend that these be
fitted to all four wheels to ensure that
your vehicle retains maximum adhe-
Warning : These tyres sometimes have
a specific direction of rotation and a
maximum speed index which may be
lower than the maximum speed of your
Snow chains may only be
fitted to tyres of the same
size as those originally
fitted to your vehicle.
In all cases, we would recommend
that you contact an authorised
dealer who will be able to advise you
on the choice of equipment which is
most suitable for your vehicle.
Changing a wheel
As the tyre pressure moni-
tor may take several min-
utes to correctly determine
the positions of the wheels and the
pressure values after driving, check
the tyre pressures following any op-
This type of equipment may only be
used for a limited period and as laid
down by local legislation. It is neces-
sary to observe the speed specified by
These tyres must, at a minimum, be
fitted to the two front wheels.
17” wheels and larger
cannot be fitted with
If you wish to use special
equipment, please consult an au-
Fitting new tyres