THE ENGIN MALFUNCTIONED. MY SAFETY AND THE SAFETY OF OTHERS WAS AT RISK BECAUSE WHEN AN ENGIN FAILS WHILE DRIVING IT CAN CAUSE A SERIOUS CRASH. THE VALVE SPRING WHICH IS LOCATED INSIDE THE ENGIN OF THE VEHICLE DID FRACTURE WHICH RESULTED IN THE ENGIN STALLING WHILE DRIVING AND WAS NOT ABLE TO BE RESTARTED. AN ENGIN STALL WHILE DRIVING WILL INCREASE THE RISK OF A CRASH AND SERIOUS INJURY. THERE WERE NO WARNINGS, THE PROBLEM HAS BEEN CONFIRMED BY A SUBARU DEALER SERVICE MANAGER.