See also:

Units of measure
You can change the units for fuel consumption, route/distance, temperature and pressure. 1.  "Settings" 2.  "Language/Units" 3.  Select the desired menu item. ...

Malfunctions involving individual CDs/ DVDs
If malfunctions occur only with particular CDs/ DVDs, this can be due to one of the following causes. Copied or self-recorded CDs/DVDs ▷ Possible reasons for malfunctions with home-recor ...

Following part replacement
The same breaking in procedures should be observed if any of the components mentioned above have to be renewed in the course of the vehicle's operating life. ...