A man has been charged with murder after his daughter was found dead in a car in suburban Adelaide, while he suffered a serious abdominal injury.

Police had been looking for the Mercedes Benz vehicle on Sunday night after concerns were raised about the pair. Just after 11.30pm that night, officers located the vehicle in Kidman Park.

They found the 49-year-old man in the car, conscious but with a serious injury to his abdomen, while the 20-year-old woman was dead.

The injured man was taken to the Royal Adelaide hospital where he remains under police guard, and was on Tuesday charged with murder.

A bedside hearing with the Port Adelaide magistrates court is scheduled for Friday.