The Start

Because of this great succes RTL ordered 22 new episodes from Polyphon. In the autumn of 1996 the shootings for this second season started. A year later in the autumn of 1997 these shootings were finished. These 22 episodes are broadcasted spread over three sub-seasons. The first six episodes were broadcasted in the spring of 1997 by RTL Television. In the autumn of that year again six episodes were broadcasted on German television. The last 10 episodes were broadcasted in the spring of 1998 by the German RTL.
As said "Alarm für Cobra 11" is broadcasted in Germany by RTL Television. But also outside Germany you can see "Alarm für Cobra 11". For example, in Austria ORF started in july 1996 broadcasting Cobra 11, in february 1998 RTL 7 started broadcasting Cobra 11 in Poland. But also in Switzerland, Holland, Hungary, Spain, Italy, France, Czech, Slovakia and Mexico "Cobra 11" is broadcasted.
The Succes

Due to the continual high number of viewers RTL Television ordered new episodes. The shootings for the fourth season took place from the spring of 1999 until the winter of 2000. Also this time Action Concept was responsible for the production. There were 15 new episodes made which are preceded by a tv-movie. In the movie René Steinke makes his first appearance as Tom Kranich. The movie was broadcasted in Germany on the 16th of december 1999. Next ten episodes were broadcasted in the first three months of 2000. The other five episodes were broadcasted in november and december of 2000 by RTL Television.
In the spring of 2000 the shootings for 15 new episodes have begun. Also these episodes will be preceded by a tv-movie (together the fifth season). This movie and five episodes were broadcasted in the spring of 2001 by the German television. The other 10 episodes will be broadcasted in the autumn of 2001 on German television.
Source: Henk Gert's Cobra11 Homepage.