Headlamp cleaning system

Fig 1: Connecting/Disconnecting Washer Hose Coupling (Headlight Cleaning System)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Disconnect by depressing clip - 1 - - arrow - and then separating coupling from jet.
Reconnect by keeping clip - arrow - depressed while pushing coupling onto jet until it engages. Check securing clip for secure locking by attempting to pull it off without depressing clip.