sure to therecommended cold tire pressure suita-
ble forthe operating situation.
In most cases, the tire pressure monitoring sys-
tem will automatically update the new reference
values aer you have changed the tire pressure.
You can, however, also update thereference val-
ues by restarting the tire pressure monitoring sys-
tem manually (/page 387).
SystSystem limitsem limits
The system may be impaired or may not function
particularly in thefollowing situations:
RIncorrect reference values were taught in
RSudden pressure loss caused by aforeign
object penetrating the tire, forexample
RThere is a malfunction caused by another
radio signal source
Chec
Checking tking the tirhe tire pre pressuressure wite with th the tirhe tire pre pressureessure
monitmonitororing systing systemem
RReqequiruirements:ements:
RThe vehicle is switched on.
Driver's display:
4©5Service
#Press ato conrm.
One of thefollowing displays appears:
RCurrent tire pressure of each wheel:
RTire pressure displayed after driving for a
few minutes.: current values are not yet
known to the system. The pressure/tempera-
ture values of each tire are displayed as soon
as they are known to the system.
RTire Pressure Monitor Active:theteach-in
process of the system is not yet complete. The
tire pressures are already being monitored.
#Compare the current tire pressure with the
recommended tire pressure forthe current
operating condition (/page 384). Addition-
ally, observe the notes on cold tires
(/page 383).
%The values displayed on the driver display may
deviate from those of the tire pressure gauge
as they referto sea level. At high elevations,
the tire pressure value indicated by a tire
pressure gauge are higher than those shown
on the driver display.
Bear in mind thefollowing related topic:
RNotes on tire pressure (/page 383)
R
Restestararting tting the tirhe tire pre pressuressure monite monitororing systing systemem
RReqequiruirements:ements:
RThe recommended tire pressure is correctly
set fortherespective operating status on each
of thefour wheels (/page 383).
Restart the tire pressure monitoring system in the
following situations:
RThe tire pressure has changed.
Wheels and tires 387387
