I found part but I cannot order - Brexigt fun! 🙂 they said "
https://shops.audi.com/en_GB/web/tradition/p/flex-hose-8n0422893af-11
An order as a private customer is not possible.
Audi dealers in Great Britain cannot place orders in our online shop either.
However, you have the possibility to contact a free car repair in your area. Independent car repair can create a commercial account with their EORI number and place an order in our online shop.
Alternatively, you can also inquire about an Audi dealer in Northern Ireland and ask them whether they can place an order for you.
The transport to Great Britain must then be organized by yourself.
Please understand that we cannot offer you any other solution at the moment.