Abstract: The invention relates to a tank for working fluids of motor vehicles, comprising a metal wall, at least one opening therein, and a plastic coating on the inside of the metal wall, wherein the plastic coating extends through the opening at least to the level of the outside of the metal wall.

Abstract: The invention relates to a method for producing a multi-chamber tank for fuels of motor vehicles, said tank comprising at least one internally coated first and at least one internally coated second chamber. The method comprises the following steps: making a first metal tank segment available, said segment containing the first chamber and an externally protruding peripheral collar, rotolining the first tank segment (4) to internally coat the first chamber with a plastic material, and connecting a second metal tank segment to the peripheral collar to form the second chamber between the second tank segment, the peripheral collar and the exterior of the second tank segment, the first tank segment being retained by its peripheral collar during rotolining.