Audi Tradition have it - brand new. Even with Brexit issues this should be worth it. Even has a photo - can you compare this with the part removed from your car to ensure it's not the A- version you need (for later cars including AMF, BHC, ATL)
HOSE 8Z2819371 > Audi Tradition - Vorsprung durch Technik
WATER HOSE<br/>Catalog number: 248 Lifespan: 06.00>08.05 Description: Audi A2
shops.audi.com