Unfortunately, there was a problem the first time around: It penetrated water in the brush a. I criticized this and invited the toothbrush again to send in. This time took the repair a little longer. This was partly probably because the holidays and New Year intervened. Secondly battery swap has probably the fault can not be found.
As a result, I got an almost new toothbrush back (and in addition my double postage). Except for the motor all components have been replaced because they could not find the leak on my toothbrush.
I am delighted that this somewhat problematic operation could be solved completely in my mind and would use the service again next time.