Leak and banging noise from Bosch Classixx 6 machine

[jeremytb]

We have a Bosch Classixx 6 washing machine that's done sterling service for the last seven years. We've never had a problem until yesterday when it started making a loud banging noise towards the end of the cycle and I noticed a leak. I think it is leaking from up near the detergent drawer. I took a photo but it's not great. The water pressure in the block of flats hasn't changed. My wife thought the drum was spinning oddly so I took a video of that too. It's not made any unusual noise before this, nor leaked, and it was washing a normal load. I ran it again on a quick wash, and it appeared to leak when the machine was filling.

Any help or advice would be much appreciated. Thanks!