The line ran between Renningen and Weil der Stadt through the Malmsheim district, close to the village.

It also did not approve the conversion of the Malmsheim entrance building to increase the waiting room and it rejected a proposal of establishing a freight-handling facility.

As a result, Deutsche Bundesbahn created an underpass to replace the Calwer Straße level crossing.

On 19 October 2003, Deutsche Bahn AG opened a second track between Renningen and the new crossover at Rankmühle, south of Malmsheim.

For this purpose, it also extended the station and created new courses for Calwer Straße and the Rankbach stream.