I threw away a Bosch machine recently but kept the motor - its brushes are in black plastic holders and each holder is fixed to the motor case with two cross-point screws.
Your motor may be similar or perhaps different - there's a video on You Tube showing how to replace clip washing machine brushes...
http://www.youtube.com/watch?v=0GmtRBiXLFc
Peccavi, November 2009
