Bosch serie 2 dishwasher with fault (Woolwich SE18)

Full size, stand alone white Bosch series 2 dishwasher.

It kinda works but gets stuck on the last minute so dishes come out wet and some need extra cleaning. There must be a fault which I'm not able to identify, let alone fix.

It's a great machine, has served us well for years. Will need a fix and a clean.

Collection only (I don't drive), ideally this week. Comes with all the piping, I can also throw in an extra set of wire drawers from a different model if you'd like.

Fair Chance Policy: I’ll wait before choosing a recipient to give more people a chance to reply.