The video shows a person working on a car engine. The person is using a wrench to loosen a bolt on a part of the engine. The person then removes the part and replaces it with a new one. The person then tightens the bolt with the wrench. The video is shot from a close-up angle, showing the person's hands and the engine parts in detail. The person's movements are deliberate and precise, indicating that they are experienced in working on car engines. The video does not contain any audio.