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This sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or sig‐
nal low tire pressure as intended. TPMS mal‐
functions may occur for a variety of reasons,
including the installation of incompatible
replacement or alternate tires or wheels on
the vehicle that prevent the TPMS from func‐
tioning properly.
Always check the TPMS malfunction warning
lamp after replacing one or more tires or
wheels on your vehicle to ensure that the
replacement or alternate tires and wheels
allow the TPMS to continue to function prop‐
erly.
The system checks the tire pressure and the tem‐
perature of the tires installed to the vehicle by
means of a tire pressure sensor.
New tire pressure sensors, e.g. in winter tires,
are automatically taught-in the first time they are
driven.
The tire pressure and the tire temperature appear
in the multifunction display (
If there is a substantial loss of tire pressure, a
warning is issued:
via display messages (
→
R
via the h warning lamp in the instrument
R
cluster
It is the driver's responsibility to set the tire pres‐
sure to the recommended cold tire pressure suit‐
able for the operating situation. Set the tire pres‐
sure for cold tires using a tire pressure gauge.
Note that the correct tire pressure for the current
operating situation must first be taught-in to the
tire pressure monitoring system.
In most cases, the tire pressure monitoring sys‐
tem will automatically update the new reference
values after you have changed the tire pressure.
You can, however, also update the reference val‐
ues by restarting the tire pressure monitoring
system manually (
page 212).
→
System limitations
The system may be impaired or may not function
in the following situations:
if the tire pressure is set incorrectly
R
R
R
Make sure to observe the following further rela‐
ted subject:
R
Checking the tire pressure with the tire pres‐
sure monitoring system
Requirements:
R
On-board computer:
,
One of the following displays appears:
R
page 161).
→
page 261)
Instrument Display with color display
R
Instrument Display with black and white display
R
#
Wheels and tires 211
if there is a sudden pressure loss caused by a
foreign object penetrating the tire, for exam‐
ple
if there is a malfunction caused by another
radio signal source
Notes on tire pressure (
page 206)
→
The ignition is switched on
Service
Tires
.
The current tire pressure and tire tempera‐
ture of the individual wheels
The current tire pressure for each wheel
Tire pressure will be displayed after driving a
few
minutes: the teach-in process of the sys‐
tem is not yet complete. The tire pressure are
already being monitored.
Compare the tire pressure with the recom‐
mended tire pressure for the current operat‐
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