To change the system language, the following steps must be carried out:

- Switch the control panel off and on again.
- Enter the service code within 30 seconds after switching on the control panel.
- Select [Language] from the service menu.
- Select the desired language from the menu.
- Confirm the selection with the [#] key.
- Exit the service menu with the [*] key.

Oh crap German I meant of course, she should "speak" German. German shop in Germany, German language.