Wheels
When driving, the system self-calibrates the
t
yr
e pressure provided by the driver and the
wheels fitted. After a long journey with varied
speeds the programmed values are collected
and monitored.
With the wheels under very heavy loads, the
tyre pressure must be increased to the total
recommended tyre pressure before calibra-
tion
›››
Fig. 212 .
WARNING
When the tyres are inflated at different
pressures or at a pressure that is too low
then a tyre may be damaged resulting in a
loss of control of the vehicle and a serious
or fatal accident.
●
If the lamp lights up, reduce speed im-
mediately and avoid any sudden turning or
braking manoeuvre. Stop when possible,
and check the tyre pressure and status.
●
The tyre pressure monitoring system can
only operate correctly if all of the tyres are
inflated to the correct pressure when cold.
●
If a tyre has not been punctured and it
does not have to be changed immediately,
drive to the nearest specialised workshop
at a moderate speed and have the tyre
checked and inflated to the correct pres-
sure.
Note
●
Driving for the first time with new tyres at
a high speed can cause them to slightly ex-
pand, which could then produce an air
pressure warning.
●
If excessively low tyre pressure is detec-
ted with the ignition on, an audible warning
will sound. In the event that there is a fault
in the system, an audible warning will
sound.
●
Driving on dirt tracks for a long period of
time or driving in a sporty style can tempo-
rarily deactivate the TPMS. The control
lamp shows a fault, but disappears when
road conditions or the driving style change.
●
Do not only rely on the tyre pressure
monitoring system. Regularly check your
tyres to ensure that the tyre pressure is cor-
rect and that the tyres are not damaged
due to puncture, cuts, tears and im-
pacts/dents. Remove objects from the
tyres only when they have not pierced the
tyres.
●
The tyre pressure monitoring indicator
does not function when there is a fault in
the ESC or ABS
›››
page 267 .
Spare wheel
Location and use of the temporary
spare wheel
Fig. 216
In the luggage compartment: load floor
raised.
»
343