Sounds like the carbon brushes in the motor have worn down and need replacing. Have a look at this website www.apart4u.co.uk, it shows you short video clips on how to carry out this sort of repair.
Good Luck
Brian L
November 2010
I can answer this question...
how can i fix my washing machine Bosh Prescion wg 2020?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix washing machines.