That silicone hose should last a good long while.
There is an L-shaped pre-formed hose that perfectly fits that section-- the rear of the block to under the IP-- from a typical VW Rabbit diesel. VW part number 171 121 611 E, I would imagine you could find it out there where you are.
Here is one example
https://www.ebay.com/itm/Volkswagen-...MAAOSwHhRb7Dey