RouteA route has already been created: the route is calculated on the basis of the new route type.
A route has not been created: the next route is calculated on the basis of the new route type.
Eco route
An economical route is calculated. The journey time may be somewhat longer than for quicker routes.
Fast route
A route with a quick journey time is calculated.
Short route
A route with a short driving distance is calculated.
The dynamic route can be switched on 
or off 
for these route types. When the dynamic route is switched on, Ask before changing the route can be selected.
Dynamic route
The route is calculated with the currently set route type.
Traffic messages via Live Traffic Information or FM RDS-TMC are taken into account.
Ask before changing the route
A prompt appears when a new route is detected with a shorter journey time based on traffic reports. You can continue to use the current route or use the dynamic route instead.