Method for ascertaining a location area of a mobile terminal in relation to a vehicle , the method comprising: generating a set of positions in relation to one or more reference points of the vehicle ; calculating a location probability of the mobile terminal for one position from the set of positions, wherein calculating a location probability of the mobile terminal for the position from the set of positions comprises: measuring a distance of the mobile terminal in relation to the one or more reference points of the vehicle; and ascertaining the location probability of the mobile terminal for the position by way of a nonlinear probability density function depending on the measured distance of the mobile terminal; assigning one position from the set of positions to one zone from a multiplicity of zones of the vehicle ; determining an aggregated location probability of the mobile terminal for one zone from the multiplicity of zones depending on the positions assigned to the zone , wherein determining an aggregated location probability of the mobile terminal for one zone comprises: ascertaining a number of assigned positions of the zone; calculating a ratio from the number of assigned positions of the predefined zone and an overall number of positions from the set of positions; and determining the calculated ratio as the aggregated location probability of the mobile terminal for the predefined zone; and if the aggregated location probability of the mobile terminal for one zone from the multiplicity of zones exceeds a predefined confidence value: ascertaining the zone as the location area of the mobile terminal . generating a set of positions in relation to one or more reference points of the vehicle ; calculating a location probability of the mobile terminal for one position from the set of positions, wherein calculating a location probability of the mobile terminal for the position from the set of positions comprises: measuring a distance of the mobile terminal in relation to the one or more reference points of the vehicle; and ascertaining the location probability of the mobile terminal for the position by way of a nonlinear probability density function depending on the measured distance of the mobile terminal; measuring a distance of the mobile terminal in relation to the one or more reference points of the vehicle; and ascertaining the location probability of the mobile terminal for the position by way of a nonlinear probability density function depending on the measured distance of the mobile terminal; assigning one position from the set of positions to one zone from a multiplicity of zones of the vehicle ; determining an aggregated location probability of the mobile terminal for one zone from the multiplicity of zones depending on the positions assigned to the zone , wherein determining an aggregated location probability of the mobile terminal for one zone comprises: ascertaining a number of assigned positions of the zone; calculating a ratio from the number of assigned positions of the predefined zone and an overall number of positions from the set of positions; and determining the calculated ratio as the aggregated location probability of the mobile terminal for the predefined zone; and ascertaining a number of assigned positions of the zone; calculating a ratio from the number of assigned positions of the predefined zone and an overall number of positions from the set of positions; and determining the calculated ratio as the aggregated location probability of the mobile terminal for the predefined zone; and if the aggregated location probability of the mobile terminal for one zone from the multiplicity of zones exceeds a predefined confidence value: ascertaining the zone as the location area of the mobile terminal . <EOS>