Dishwasher debugging - it's broken :( - fills ok but doesn't do the enthusiastic splashing of water

BOSCH dishwasher about 23 years old.

It fills with water fine but at the spashing water stage it struggles, makes a funny noise, water doesn't splash enthusiastically around.

Usual things checked and not a problem, arms clear.

Extra checks - it's draining ok and filling. Jam door open and observe => the pump to spray water around is quite weak. Something stuck in it or pump failing ? Water gently fountains out of bottom arm but it's too weak to make arm rotate.

I take it apart a bit and out and clean loads of gunge from under and around it.

BOSCH - SGS4012GB/14 type S10R1B

Weak spray, just a slow fountain in bottom arm.

https://www.justanswer.co.uk/appliance/dodgt-bosch-dishwasher-s10r1b-won-t-fill.html It fills fine. Not the problem. https://homeguides.sfgate.com/troubleshoot-bosch-dishwasher-doesnt-fill-water-80257.html it fills fine! https://www.choicehomewarranty.com/troubleshooting-dishwasher-problems/ nope nope nope https://www.fixya.com/support/t1624929-bosch_dishwasher_s10r1b_water_not  nope nope https://www.fixya.com/support/t8981522-bosch_s10r1b  nope nope it fills fine! https://www.a-wash.org/_dishwashers/q351219-bosch_dishwasher_s10r1b nope nope also various youtube mostly common problem where it doesn't fill or other simple maintenance cleaning out filters & arms.

So, well, can't find our problem on the internet, it's a different PUMP blocked or pump needs replacing.

MANUAL/User guide: https://media3.bosch-home.com/Documents/5600002370_A.pdf

https://www.bosch-home.co.uk/spareparts/media/58300000098065_aet_000_a_05.png?dataPk=9373635575838&width=1442&height=1019  diagram of connecting plumbing, elec, install .. 

https://elektrotanya.com/showresult?what=bosch%20%20S10R1B&kategoria=&kat2=all&page=0

Repair services?

https://www.repairmystuff.ie/repair-directory/

https://www.stillorganappliancerepair.ie/dishwasher-repairs

https://www.bosch-home.ie/customer-service/repair-service Humm. If out of warranty 95 euros callout before debug, repair.

Nuts. probably need to "recycle" it and get a new(second-hand) machine.

https://www.dlrcoco.ie/en/recycling-waste/waste/waste-electrical-and-electronic-equipment-weee

User manual and Install manual for "new" one in a few weeks:

https://www.siemens-home.bsh-group.com/ie/productlist/dish-care/freestanding-dishwashers/full-size-dishwashers-60cm/SN236I03MG#/Tabs=tab-5426177/Togglebox=-1465951841/Togglebox=-1509931852/Togglebox=-1955430530/Togglebox=-849903121/Togglebox=1149550223/Togglebox=1957824648/Togglebox=285469437/Togglebox=911376680/Togglebox=924050787/Togglebox=-424550653/

UPDATE Thur 16 April got new dishwasher 2nd hand.

Fionn & James collect. Lift it out to car, drain out tiny bit of water. In car lying down mostly propped up door-side up. Not really wedged, heavy enough to stay in place.

Home in car, no leaks.

Family dinner by Kate yummy. Melon for starters. Followed by burritos with beans/chilli, rice, chicken & onion, carrot & broccoli shredded steamed, guacamole, sour cream, cheese, red onions. Also egg and seaweed nori rolls.

Lifted in new dishwasher with Daire . . after the dish washing from dinner is done! 

Disconnected old - electric plug, waste water - clean out some gunge, water in - on/off valve doesn't go to off so leak into sink for a bit.

Connect new one fine. Tight fit. It makes some noise.

UPDATE Fri 17 April 17:30 dishwasher on.

New dishwasher making believable noises now.

Old dishwasher bits screw back on. Torx. Haul out to hall. Ready for outside, draining & recycling tomorrow.