Audi A8 2015 without engine

Audi A8 2015, navy blue color, beautiful interior, mileage 260,000, the car is clean and free of scratches. I want to sell it as is with a minor dent in the rear bumper which is not repaired and visible in the pictures. The car has an engine problem and since I am in Taif, no one knows how to fix it; they suggested replacing the engine, but I don't know if it can be repaired or must be replaced. Other than that, the car has no issues.