Wondering if anyone has come across this? Factory upper radiator hose has a 1/4 inch hose that branches off to the overflow bottle and to the engine. Replacement hose does not, however part numbers match (1HM121 101 B). Is there a OEM change that adds an additional hose and removes this branch? Thanks in advance.

Photo of branch hose.

 

Parts shops don't generally use OEM part numbers.

https://volkswagen.7zap.com/en/rdw/ keep this in your favorites/bookmarks for reference. It shows the same picture layout as ETKA. As it will save me checking ETKA, which isn't working with the new 8.2 version

Post approved.

 

Diagram certainly helped. Thank you. My car does not match the hose diagram. Need to check my coolant pipe and go form there. Thank you.

 

Discovered that my car was a CA car. Different set up for emissions.