The Bundesbank reimburses or replaces euro coins that have become unfit for circulation due to long circulation or accident.
The Bundesbank does not reimburse euro coins that have been altered either deliberately or by a process that could reasonably be expected to have the effect of so altering them. All euro coins that are deemed unfit are taken out of circulation.
Furthermore, euro coins that have been counterfeited or that have already been exchanged and devalued by a Bundesbank branch or another ESCB central bank cannot be replaced.
The Bundesbank will not exchange DM coins for legal tender if they have been counterfeited, contain holes or have been altered in any way other than through normal use.