Tire age

Tires degrade over time, even when they are not being used. It is recommended that tires generally be replaced after 6 years of normal service. Heat caused by hot climates, frequent high loading conditions or Ultra Violet (U.V.) exposure can accelerate the aging process.
The temporary spare1 should also be replaced at 6-year intervals, even if it has never been used.
A tire's age can be determined by the DOT stamp on the sidewall (see the illustration).
A tire with e.g., visible cracks or discoloration should be replaced immediately.
See also:
Switching HD on or off
The factory setting for HD radio is off. However,
when driving through areas with weak HD
signals (fringe areas), you may experience that
the radio repeatedly switches between analogue/
digita ...
Replacing the batteries
CAUTION
When handling batteries, avoid touching
their contact surfaces as this could result in
poor battery function in the remote key.
3 Note the position of the battery's (+) or (–)
sides.
...
