A copper elbow would most likely be a better option there , I think if it was me I would be making sure plenty of it feeds inside the hose , like atleast 25mm each end and good quality hose clamps used. If you could find it with the barb on each end as Tombie say's even better.
There are 3 clamps that hold that hose in place , your mechanic may need to move the hose further across to get it away from the pulley , especially with a couple hose clamps close by.
I think ( but not 100% sure ) the D2 may have had a hose that had a solid elbow in a similar spot.
Cheers Ean

