The law background of the unlimited motorway sections regulates the
Verordnung über eine allgemeine Richtgeschwindigkeit auf Autobahnen und ähnlichen Straßen --> Regulation on a general guide speed on highways and similar roads
(Autobahn-Richtgeschwindigkeit - V) --> (Highway Guidance Speed - V)
§ 1
It is recommended to drivers of passenger cars as well as other motor vehicles with a gross vehicle weight of up to 3.5 t, even with favorable road, traffic, visibility and weather conditions
- on highways (sign 330.1),
- outside built-up areas on other roads with lanes for one direction, separated by median strips or other structures, and
- outside built-up areas on roads having at least two lanes for each direction marked by lane boundary (sign 295) or by guidelines (sign 340),
not to drive faster than 130 km/h (highway-speed guide).
This does not apply, as far as according to the StVO or according to their signs maximum speeds (character 274) exist.
As can be seen from the legal text, a recommended speed of 130 km/h is recommended. The overrun therefore does not constitute a criminal offense or an administrative offense.
Straßenverkehrsordnung (StVO) --> Road Traffic Act
The Highway Code is a statutory order of the Federal Republic of Germany.
It sets the rules for all persons participating in road traffic.
In the StVO in addition to the traffic rules and the traffic signs and their meaning are explained.
The following are the main signs for highway enthusiasts summarized.
Sign 282 - End of all distance bans

Sign 330 - freeway

