Owners of Karmann Ghia cars have often experienced it, it has always been a weak point on this Type VW. A broken cable to open the engine compartment . A bad working deck lid lock is often at the base of this problem. In practice they are often poorly lubricated and consequently difficult to manipulate. The cable will be overcharged and will definitely break.
From now on BBT can deliver a replacement from stock and we can deliver the outer cable as well under ref. #0932-250. Dont forget to check and lubricate the lock upon replacement