Some car parks require a blue parking disc specially in the historic centre of Molsheim and Mutzig. The limited duration varies according to the municipality. Outside of the city centre, there are some free car parks without time limit.
Further information on parking in Molsheim and Mutzig
However, we advise you to contact the town halls or the municipal police to check the regulations in force, especially if your leave for several days (Code de la route Article R417-12)..