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Further information on the declaration of con‐
formity for wireless vehicle components
(/ page 25).
Tire pressure loss warning system
Function of the tire pressure loss warning
system
The tire pressure loss warning system warns the
driver by means of display messages when there
is a severe tire pressure loss.
After a change in tire pressure, a wheel rotation
or a tire change, or if you have re-installed
wheels or tires, the tire pressure loss warning
system has to be restarted (
/ page 398).
The tire pressure loss warning system does not
replace the need to regularly check the tire pres‐
sure.
System limitations
The system may be impaired or may not function
particularly in the following situations:
R
Incorrectly set tire pressure
R
Sudden pressure loss caused, for example,
by a foreign object penetrating the tire
R
Steady pressure loss in several tires
The system has a restricted or delayed function
particularly in the following situations:
R
Poor ground conditions, e.g. snow or gravel
R
Driving with snow chains
R
When adopting a very sporty driving style
with high cor nering speeds or sudden accel‐
eration
R
Driving with a high load
Be sure to also observe the following further
related subjects:
R
Notes on tire pressure (/ page 392)
R
Display messages about the tires
(/ page 466)
Restarting the tire pressure loss warning
system
Requirements:
R
The recommended tire pressure is correctly
set for the respective operating status on
each of the four wheels (/ page 392).
Restart the tire pressure loss warning system in
the following situations:
R
The tire pressure has changed.
R
The wheels or tires have been changed or
newly installed.
On-board computer:
4
Service
5
Tires
#
Swipe downwards on the Touch Control on
the left-hand side of the steering wheel.
The Tire Pressure Control System
ActiveRestart: Press Touch Control message
is shown in the multifunction display.
Restart the tire pressure loss warning system in
the following situations:
R
The tire pressure has changed.
R
The wheels or tires have been changed or
newly installed.
#
To begin the restart, press the Touch Control
on the left-hand side of the steering wheel.
The Tire Pressure Now OK? message is
shown in the multifunction display.
398
Wheels and tires
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