BOSCH SMV45EX00E/24 dishwasher: Water slowly pooling in the bottom after cycle has finished

[Defy81]

Model Number

SMV45EX00E/24

Brand

Bosch

Age

1-5 years

Hello,
I'd like to ask your help regarding a fairly strange issue I have with a BOSCH SMV45EX00E/24 dishwasher: the washing cycle is working just fine, water comes in, cleans the dishes, used water is pumped out, and at the end of the cycle there is no water inside, but after a few hours, fresh / clean water keeps slowly filling in the bottom and the only way I can temporarily fix it is to turn the off the water. (One time it even overflown and caused the device to give error E15, I've eliminated water under the Styrofoam safety switch so that the error clears but that made me think there is something causing this).
After searching on the internet I've concluded that the water inlet valve needs to be replaced, which I just did, ordering an original piece, mounting it, but there is no change in the overall behavior, water is still slowly pouring in after a couple of hours, just like before.
Do you have any ideas which part should be checked next? I'm thinking of the water flow sensor.
Apart of that there is no other issue with the machine. (except it's not even three years old and behaving like this).
Any input is appreciated,
Thanks in advance,

 

[pgraber]

Change your water inlet valve; they get tired over time and leak when idle, causing your issue.

 

[Defy81]

Hi pgrabber, thanks for taking the time to comment but as I've stated in my first post, I have already changed the water inlet valve with an original piece but that didn't change a thing.
While I was trying to figure out where does the water come from, I saw that it is actually dripping from the inside of the machine, on the left side there is a round grey plastic cap and that seems to be the culprit: when I turn of the main water then the dripping stops, when I open the water main then it is slowly dripping and after 5-6 hours a fair amount of water acucmulates in the bottom of the machine.
Found it on Bosch site as part number 00623541 (part itself plus an o ring gasket) but apart for that nothing. https://www.bosch-home.com/us/shop-...Tabs=section-fitsappliance/Togglebox=manuals/