Corrosion on dishwasher motor - is it serious?

Hi,

Our dishwasher (Indesit DI450 UKC) stopped washing dishes properly and there was a slight burning smell during a wash and after looking inside we could see the heater element was covered in blackened / burnt limescale so we suspected this was the issue. I was planning to replace the heater element so I took the bottom off to see how easy it would be to do but while doing so saw that the motor / pump had this corrosion on it - photos attached.

Would it be ok to continue to use it like this or does it signify a major issue? We are hoping to move home this year and the dishwasher is a slimline integrated one so I didn't really want to spend a lot repairing it (a new motor is about £120) or buy a new dishwasher. If it is advisable not to use it then I'll probably leave switched off and won't bother replacing the heater element.

Any help much appreciated!

Thanks!

I would be more interested in finding out where the water is coming from.

It's leaking from the wash pump seal, it will eventually seize up or leak enough to trigger anti flood switch.

Thanks for your replies, appreciate your help.