Flush valve for Villeroy & Boch Carolla toilet

[mr19]

Previous owners left me with a Villeroy & Boch Carolla toilet. Just yesterday it started running non-stop. I believe the issue is with the flush valve but I can't seem to get it working.

Any ideas where this part is available? I am in the US.

Also is there anything special about this toilet that the previous owners felt it necessary to install this toilet for which I can find no parts locally?

TIA

 

[havasu]

I'm not familiar with this toilet. It may be cheaper to replace with a modern toilet with modern internals.

 

[mr19]

Thanks for the reply. That was one of the options I was considering but concern is we have a matching sink and didn't want to replace that as well to guarantee colors match.

 

[CT18]

Parents put one in years ago and had to contact a certified V&B installer.

 

[havasu]

Man, they have been around since the 1700's?

https://www.villeroy-boch.com/bath-and-wellness/products/categories/toilets.html

 

[CT18]

The flange connection was different and they would not warranty unless installed by there guy.