An aqueous, surface-active and anti-corrosion preparation containing, in addition to water, i) a corrosion protection system comprising a) aliphatic carboxylic acids having at least 6 but no more than 14 carbon atoms and/or carboxylic acids having oxygen heteroatoms inserted in the carbon chain, which have between 6 and 26 atoms in the carbon heteroatom chain, and/or aliphatic phosphonic acids having at least 4 but no more than 18 carbon atoms, b) at least one amine which has at least one oxybis(alkylamine) unit having tertiary amino groups, wherein the alkyl chains of this unit each consist of no more than 4 carbon atoms, wherein the molar ratio of the total amount of carboxyl acid groups and/or phosphonic acid groups of components a) to oxybis(alkylamine) units of the at least one amine of component b) is no greater than 5:1 but no smaller than 1:3, ii) an emulsifier system consisting of c) ethoxylates/propoxylates of fatty alcohols having from 8 to 18 carbon atoms in the alcohol having from 2 to 6 ethylene oxide units and from 4 to 8 propylene oxide units and d) fatty alcohols and/or fatty alcohol propoxylates having from 12 to 24 C atoms in the alcohol and from 0 to 3 propylene oxide units and/or the distillation residue of these fatty alcohols. i) a corrosion protection system comprising a) aliphatic carboxylic acids having at least 6 but no more than 14 carbon atoms and/or carboxylic acids having oxygen heteroatoms inserted in the carbon chain, which have between 6 and 26 atoms in the carbon heteroatom chain, and/or aliphatic phosphonic acids having at least 4 but no more than 18 carbon atoms, b) at least one amine which has at least one oxybis(alkylamine) unit having tertiary amino groups, wherein the alkyl chains of this unit each consist of no more than 4 carbon atoms, wherein the molar ratio of the total amount of carboxyl acid groups and/or phosphonic acid groups of components a) to oxybis(alkylamine) units of the at least one amine of component b) is no greater than 5:1 but no smaller than 1:3, a) aliphatic carboxylic acids having at least 6 but no more than 14 carbon atoms and/or carboxylic acids having oxygen heteroatoms inserted in the carbon chain, which have between 6 and 26 atoms in the carbon heteroatom chain, and/or aliphatic phosphonic acids having at least 4 but no more than 18 carbon atoms, b) at least one amine which has at least one oxybis(alkylamine) unit having tertiary amino groups, wherein the alkyl chains of this unit each consist of no more than 4 carbon atoms, wherein the molar ratio of the total amount of carboxyl acid groups and/or phosphonic acid groups of components a) to oxybis(alkylamine) units of the at least one amine of component b) is no greater than 5:1 but no smaller than 1:3, ii) an emulsifier system consisting of c) ethoxylates/propoxylates of fatty alcohols having from 8 to 18 carbon atoms in the alcohol having from 2 to 6 ethylene oxide units and from 4 to 8 propylene oxide units and d) fatty alcohols and/or fatty alcohol propoxylates having from 12 to 24 C atoms in the alcohol and from 0 to 3 propylene oxide units and/or the distillation residue of these fatty alcohols. c) ethoxylates/propoxylates of fatty alcohols having from 8 to 18 carbon atoms in the alcohol having from 2 to 6 ethylene oxide units and from 4 to 8 propylene oxide units and d) fatty alcohols and/or fatty alcohol propoxylates having from 12 to 24 C atoms in the alcohol and from 0 to 3 propylene oxide units and/or the distillation residue of these fatty alcohols.