crank sensor socket

my friends took my car to the workshop and they told me that the crank sensor socket was about to break and had to change urgently. But they said that if there was not a single socket, the complete engine installation should be changed. Can you inform me about this? what should i do

My vehicle is diesel 206

don't you know any friends?

If this is the only problem, first fasten the two sides that are about to break with the fast adhesive. Then, reinforce it with silicone from the outside so that it will not be broken again from the vibration.