Bosch WFF 2001 Washing Machine stops mid cycle?

we have had a similar problem and its to the the door locking system,when the door closes it pushes on 2 metal bars,these seem to jam if we use wd 40 to free them off we can complete the wash cycle,difficult to get to and hard to see where you are spraying the wd 40, am on this site trying to find out if i can get to the switch to replace it

mr a b wtkinson, abwatkinson@hotmail.co.uk
August 2006