Volkswagen Beetle engine shuts off unexpectedly, suspected alternator issue on Volkswagen Beetle

Some Volkswagen Beetle owners report experiencing unexpected engine shutdowns due to various issues, including a malfunctioning fuel pump that prevents sufficient fuel from reaching the engine, resulting in a safety shutdown. Others have noted that a clogged fuel filter can restrict fuel flow, leading to stalling. Additionally, problems with the vacuum pump may cause vacuum leaks that affect both braking performance and engine function. A faulty crank sensor is another reported issue that can lead to engine shutdowns and may trigger fuel pump-related problems. While alternator issues could potentially affect the electrical system and cause stalling, they are not commonly cited as the primary cause of unexpected engine shutdowns in Volkswagen Beetles. It is recommended to investigate these more prevalent causes when troubleshooting.