Vehicle Care 179
button to activate the TPMS
sensor. A horn chirp confirms
that the sensor identification
code has been matched to this
tyre and wheel position.
10. Proceed to the right side front
tyre, and repeat the procedure
in Step 9.
11. Proceed to the right side rear
tyre, and repeat the procedure
in Step 9.
12. Proceed to the left side rear
tyre, and repeat the procedure
in Step 9. The horn sounds
twice to indicate the sensor
identification code has been
matched to the left side rear
tyre, and the TPMS sensor
matching process is no longer
active.
13. Turn off the ignition.
14. Set all four tyres to the
recommended air pressure
level as indicated on the tyre
pressure label.
15. Ensure the tyre loading status
is set according selected
pressure
0 Driver Information
Centre (DIC) 0 75.
Temperature dependency
The tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase. Tyre pressure
values provided on the tyre
information label and tyre pressure
chart are valid for cold tyres, which
means at 20 °C. The pressure
increases by nearly 10 kPa for a
10 °C temperature increase. This
must be considered when warm
tyres are checked.
The tyre pressure value displayed in
the DIC shows the real tyre
pressure. A cooled down tyre will
show a decreased value, which
does not indicate an air leak.
Tread Depth
Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).
For safety reasons it is
recommended that the tread depth
of the tyres on one axle should not
vary by more than 2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread
wear indicators (TWI). Their position
is indicated by markings on the
sidewall.
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