A cleaning system for bottles, including a housing in which at least one transport element having bottle carriers conveys the bottles through different system zones, where at least one sheet-metal wall is provided in the housing as a boundary of the bottle transport path. The sheet-metal wall can be contacted on a bottle contact side by bottles in at least one locally defined wear portion along the bottle transport path, and at least one wear plate is exchangeably arranged in the wear portion of the sheet-metal wall.