Tire age
The tire manufacturing date is contained in the tire identification mark: DOT ... 3410 means that the tire was manufactured in the week 34 of 2010.
BMW recommends that you replace all tires after 6 years at most, even if some tires may last for 10 years.
See also:
Telephone
...
Remove attached partsfollowing use
Remove auxiliary mirrors, roof or rear luggage
racks which are no longer required following
use.
Attached parts on the vehicle impair the aerodynamics
and increase the fuel consumption. ...
Activating HDC
Press the button; the LED above
the button
lights up. ...