This is what VW do for the second recall for the Bowden freezing in the doors. There is aluminium tape applied, seemingly tape around the plastic housing for the cable and then the cable itself has been cable tied to the metal door frame to hold it in a vertical position.
I have gone further by packing it with 19mm closed cell foam, silicone spray on the exposed cable and sound deadening where i can.

I have gone further by packing it with 19mm closed cell foam, silicone spray on the exposed cable and sound deadening where i can.

