Possible driving distance with a deflated
tyre
The possible driving distance varies depending
on the load and stresses the vehicle is subjected
to, for example speed, the nature of the road sur‐
face, outside temperature. The driving distance
may be shorter but can also be increased by
adopting a more careful driving style.
If the vehicle is moderately loaded and subjected
to low stress, it is possible to travel up to 80 km,
50 miles.
Driving properties with damaged tyres
On a journey with damaged tyres, handling char‐
acteristics change and lead to the following sit‐
uations, for example:
▷ The vehicle losing traction more quickly.
▷ Longer stopping distances.
▷ Different self-steering characteristics.
Adapt your driving style. Avoid abrupt steering or
driving over obstacles, for example kerbs or pot‐
holes.
Final tyre failure
Vibration or loud noises during the journey may
be an indication that the tyre has finally failed.
Reduce your speed and stop the vehicle. Parts of
the tyre may detach, which might lead to an acci‐
dent.
Do not continue driving, but instead contact a
Service Partner of the manufacturer or another
qualified Service Partner or a specialist work‐
shop.
System limits
In the following situations, the system could be
slow to respond or operate incorrectly:
▷ A natural, even loss of tyre inflation pressure
in all four tyres that occurs over time will not
be detected. Therefore check the tyre infla‐
tion pressure at regular intervals.
▷ No warning can be given in the event of sud‐
den tyre failure caused by external factors.
▷ The system has not been initialised.
▷ When driving on snow-covered or slippery
surfaces.
▷ Dynamic driving style: drive wheels slipping,
high lateral acceleration.
▷ When driving with snow chains.
Wheel change
General
For run-flat tyres or when using a flat tyre kit, it is
not always necessary to change a wheel immedi‐
ately if tyre inflation pressure is lost due to a flat
tyre.
If required, the tools for changing wheels are
available as optional accessories from a Service
Partner of the manufacturer, another qualified
Service Partner or a specialist workshop.
Safety notes
DANGER
The jack is only intended for raising the vehicle
briefly during a wheel change. Even if the safety
measures are complied with, there is a risk of
the raised vehicle falling over due to the jack
slipping. There is a risk of injury or even death.
If the vehicle is raised with the jack, do not lie
underneath the vehicle and do not start the en‐
gine.
DANGER
Supports such as wooden blocks under the
jack can prevent it from achieving its load ca‐
pacity due to the restricted height. The load ca‐
pacity of the wooden blocks may be exceeded,
causing the vehicle to tip over. There is a risk of
Seite 388
MOBILITY
Wheels and tyres
388
Online Edition for Part no. 01405A1EA53 - X/20
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