Mercedes-Benz S-Class 2020 Owner's Manual page 400

The load conditions "partially laden" and "fully
laden" are defined in the table for different num‐
bers of passengers and amounts of luggage. The
actual number of seats may differ from this.
Tyre pressure monitoring system
Function of the tyre pressure monitoring sys‐
tem
The system checks the tyre pressure and the
tyre temperature of the tyres fitted to the vehicle
by means of a tyre pressure sensor.
The tyre pressure and the tyre temperature
appear in the driver's display (
If there is a substantial pressure loss or if the
tyre temperature is excessive, you will be
warned with display messages (
the h warning lamp in the instrument cluster
( page 576).
/
The tyre pressure monitoring system is only an
aid. It is the driver's responsibility to set the tyre
pressure to the recommended cold tyre pressure
suitable for the operating situation.
In most cases, the tyre pressure monitoring sys‐
tem will automatically update the new reference
values after you have changed the tyre pressure.
You can, however, also update the reference val‐
ues by restarting the tyre pressure monitoring
system manually (
System limits
The system may be impaired or may not function
particularly in the following situations:
the tyre pressure has been set incorrectly
R
sudden pressure loss caused by a foreign
R
object penetrating the tyre, for example
page 397).
/
there is a malfunction caused by another
R
radio signal source
Checking the tyre pressure with the tyre
page 552) or
/
pressure monitoring system
Requirements:
The ignition is switched on.
R
page 398).
/
Wheels and tyres 397
Driver display:
© Service
4 5
One of the following displays appears:
Current tyre pressure of each wheel:
R
Tyre pressures will be displayed after a few
R
minutes of driving
Tyre pressure monitor active: the teach-in
R
process of the system is not yet complete.
The tyre pressures are already being moni‐
tored.
Compare the tyre pressure with the recom‐
#
mended tyre pressure for the current operat‐