How to change wire for backdoor window lift w202 C180 1997 ??

[MrOnline]

i have now opend the backdoor panel, and there was a wire rusted over, and when i run the "window lift" it sounds like it's eating the wire. Is there a easy fix for this ??

just to be sure it's clear...

Window wont go up or down, lift runs, but theres a steal wire going from the motor that has snapped due to rust....

What and how to fix this ???

thnks for all help so far with the other problems i've had