It's a well known issue that Mercedes made the power steering low pressure return line on the NCV3 and VS30 platforms juuuust a bit too short. When combined with the low clamping power of banded clamps, it's common for the hose to slip off or get dangerously close to it. The Van Compass Power...
vancompass.com
I have been watching my PS return hose. The hose pulled back and the clamp slid forward so I decided to handle that today.
I had some Pentosyn PS fluid in stock, used a barbed 3/8 splice with a few inched of 3/8 ps return hose. I pushed the hose and splice on and could not pull it off even without the clamps installed. Pretty confident it'll hold. It doesn't look like it but the hose must be too short- best to add some to relieve the tension.
Also was chatting another sprinter van owner when grabbing a campsite and he mentioned he ran across another sprinter with a hose that came off stranding him in the desert.
Note- those of you who do this, if you are even a little quick and have something to plug the hose or end, very little oil leaks out.