Tyre statuses
General
The status of the system and tyres is indicated
by the wheel colour and a message on the Con‐
trol Display.
If applicable, existing messages are not deleted if
the nominal pressure is not reached on correc‐
tion of the tyre inflation pressure.
All wheels green
▷ The system is active and refers to the nomi‐
nal pressures for the warning.
▷ In the case of tyres with special approval: the
system is active and is using the tyre inflation
pressures saved during the last reset for the
warning.
One to four wheels yellow
There is a flat tyre or major loss of tyre inflation
pressure in the tyres shown.
Wheels grey
Tyre pressure losses might not be detected.
Possible causes:
▷ Malfunction.
▷ The tyre inflation pressure is being measured,
after confirmation of the tyre settings.
▷ In the case of tyres with special approval: a
system reset is being performed.
Tyres with special approval:
performing a reset
1.
"CAR"
2. "Vehicle status"
3. "Tyre Pressure Monitor"
4. Make sure that the correct tyre settings have
been made.
Tyre settings, see page 380.
5. Switch on drive-ready state but do not drive
off.
6. Reset the tyre inflation pressure: "Perform
reset".
7. Drive off.
The wheels are shown grey and the following ap‐
pears on the display: "Resetting tyre
pressure…".
After driving for several minutes, the set tyre in‐
flation pressures are accepted as the specified
tyre inflation pressures. The reset is completed
automatically during the journey.
If the reset was successful, the wheels are
shown in green on the Control Display and the
following appears: "Reset successful."
You can interrupt your journey at any time. The
reset resumes automatically when you continue
your journey.
Messages: for tyres without
special approval
General
Dynamic Stability Control DSC will be activated if
necessary as soon as a message for low tyre in‐
flation pressure appears.
Safety note
WARNING
A damaged standard tyre with too little or no
tyre inflation pressure impairs driving character‐
istics, for example steering and braking. Tyres
with run-flat properties allow a limited level of
stability to be maintained. There is a risk of ac‐
cident. Do not continue driving if the vehicle is
fitted with standard tyres. Comply with the
notes on run-flat tyres and continuing to drive
with these tyres.
Seite 381
Wheels and tyres
MOBILITY
381
Online Edition for Part no. 01405A1EA53 - X/20
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