Stiffening element for a liquid container, liquid container for a motor vehicle with a stiffening element and production method for a liquid container having a stiffening element

A stiffening element for a liquid container for a motor vehicle, wherein the stiffening element has a first connection area, a second connection area, and a central area, wherein the first connection area and the second connection area are at least indirectly connected to one another by the central area,

• wherein the first connection area and the second connection area have a different connection geometry and wherein a first connection surface of the first connection area is larger than a second connection surface of the second connection area,
• wherein
• the first connection area is had by a first connection piece,
• the second connection area is had by a second connection piece,
• the central area is had by a central piece, wherein the central piece is connected to the first connection piece and the second connection piece in a force-fitting and/or form-fitting manner, and
• the central piece has at least one through-opening,
• wherein the central area and/or the central piece has a predetermined breaking point.