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Operation
Tires and wheels
4
̈ Switch on the ignition (୴ page 67).
̈ Press the j or k button until
the current inflation pressures for each
tire appear in the multifunction display.
i
Possible differences between the read-
ings of a tire pressure gauge of an air
hose, e.g. gas station equipment, and
the vehicle’s control system can occur.
Usually the readings issued by the con-
trol system are more precise.
54.32-2278-31
i
When the message
Tire pres. dis-
played after driving for several
minutes
appears in the multifunction
display, the individual inflation pres-
sure values are matched with the tires.
The individual values are displayed af-
ter a few minutes' driving.
Warning G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.
i
If a spare wheel without wheel sensors
is mounted, the system may still indi-
cate the tire inflation pressure of the
removed wheel for some minutes. If
this happens, keep in mind that the in-
dicated value where the spare wheel is
mounted does not reflect the actual
spare tire inflation pressure.
Warning G
The TPMS does not warn you against incor-
rectly selected tire inflation pressure and
does not warn you when the tire pressure is
not properly selected for the respective ve-
hicle load. It warns you only when the pres-
sure of one or more tires decreases
significantly below the reference inflation
pressure which was stored at the time of
calibration of the TPMS after you inflated the
tires.
Always ensure that you recalibrate the
TPMS after you have inflated the tires to the
recommended cold inflation pressure.
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