Wheels and tyres
363
Tyre repair
WARNING
When the tyres are inflated at different pres-
sures 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 manoeuvres. Stop when possible,
and check the tyre pressure and status.
●
The tyre pressure loss indicator only works
correctly if all the tyres are at the correct
pressure when cold, and it is subsequently
calibrated according to the described pro-
cedure.
●
If a tyre has not been punctured and it does
not have to be changed immediately, drive to
the nearest specialised workshop at a mod-
erate speed and have the tyre checked and
inflated to the correct pressure.
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 pres-
sure warning.
●
If excessively low tyre pressure is detected
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 unpaved roads for a long pe-
riod of time, or sporty driving, may tempora-
rily deactivate the system. The control lamp
shows a fault, but disappears when road
conditions or the driving style change.
●
Do not only rely on the tyre pressure moni-
toring system. Regularly check your tyres to
ensure that the tyre pressure is correct and
that the tyres are not damaged due to punc-
ture, cuts, tears and impacts/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 177
.
Troubleshooting
Low tyre pressure
The control lamp switches on yellow.
The inflation pressure of one or more wheels is
much lower than the value set by the driver, or
the tyre has structural damage. In addition, a
audible warning sounds and a text message is
displayed on the instrument panel screen.
●
Stop the vehicle!
Stop the vehicle safely
as soon as possible.
●
Check all tyres and pressures.
●
Replace any damaged tyres.
Fault in the tyre pressure loss indicator
The control lamp flashes for approximately 1
minute and then lights up permanently in yel-
low.
●
If the tyre is inflated correctly, switch the igni-
tion off and on again.
●
Re-calibrate the tyre pressure monitoring sys-
tem
›››
page 362
●
If the fault continues, go to a specialised
workshop.
Tyre repair
TMS (Tyre Mobility System) puncture
repair kit
The puncture repair kit (Tyre Mobility System)
will reliably seal punctures caused by the pen-
etration of a foreign body of up to about
4 mm
in diameter.
Do not remove foreign objects,
e.g. screws or nails, from the tyre.
After inserting the sealant residue in the tyre,
you must again check the tyre pressure about
10 minutes after starting the engine.
You should only use the tyre mobility set if the
vehicle is parked in a safe place, you are famil-
iar with the procedure and you have the nec-
essary tyre mobility set. Otherwise, you should
seek professional assistance.
CarManuals2.com