Pete_VR6

Coincidentally had a similar scenario with my Mk3 power steering lines recently. I found the solution was taking the pipes off and getting a local hydraulic company (mainly dealing with diggers and forklifts) to make up a new set using the original metal components.

mine did that before and it was the brake fluid level plunger bit connected to the lid of the reservoir that had fallen all the way down (despite being full). Don't know if it would be worth checking again??