Carry out reset
Reset the system after each correction of the
tire inflation pressure and after every tire or
wheel change.
1.
"Vehicle Info"
2.
"Vehicle status"
3.
"Perform reset"
4.
Start the engine - do not drive away.
5.
Carry out the reset with "Perform reset".
6.
Drive away.
The tires are shown in gray and the status is
displayed.
After driving faster than 19 mph/30 km/h for a
short period, the tire inflation pressures set are
accepted as reference values. The reset is
completed automatically during driving.
After a successfully completed Reset, the
wheels on the Control Display are shown in
green and "Tire Pressure Monitor (TPM)
active" is displayed.
The trip can be interrupted at any time. If you
drive away again, the reset resumes automati‐
cally.
Low tire pressure message
The yellow warning lamp lights up. A
Check Control message is displayed.
▷
There is a flat tire or a major loss in
tire inflation pressure.
▷
No reset was performed for the system.
The system therefore issues a warning
based on the tire pressures before the last
reset.
1.
Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2.
Identify the damaged wheel. Do so by
checking the tire inflation pressure using
the Mobility System. Correcting the tire in‐
flation pressure, refer to page
3.
Repair flat tire with the Mobility System, re‐
fer to page
, or replace the damaged
wheel.
Required inflation pressure check
message
A Check Control message is displayed.
Check the tire inflation pressure and carry out
a reset of the system.
In some cases, a wheel was changed without
having carried out a reset.
System limits
The system does not function properly if a re‐
set has not been carried out, e.g., a flat tire is
reported even though the tire inflation pres‐
sures are correct.
The tire pressure depends on the temperature
of the tire. If the tire temperature rises, e.g.,
due to driving or because of the heat of the
Sun, the tire inflation pressure increases also.
The tire pressure is reduced when the tire
temperature falls again. This behavior may
cause a warning to be issued if temperatures
fall very sharply.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. A Check
Control message is displayed. No flat
tire or loss of tire pressure can be detected.
Display in the following situations:
▷
A wheel without TPM electronics is fitted:
have the service center check it if neces‐
sary.
▷
Malfunction: have the system checked by
your service center.
▷
TPM was unable to complete the reset.
Reset the system again.
▷
Disturbance by systems or devices with
the same radio frequency: after leaving the
area of the disturbance, the system auto‐
matically becomes active again.
Seite 103
Safety
Controls
103
Online Edition for Part no. 01 40 2 910 746 - VI/13
Online Edition for Part no. 01 40 2 926 037 - XI/13
