Why does my Volkswagen Polo keep stalling?

I recently bought a used Volkswagen Polo and have been experiencing issues with it stalling while driving. It happens randomly, sometimes at a stop light and sometimes while I'm driving on the highway. What could be causing this and how can I fix it?

It is possible that there could be an issue with the fuel pump or fuel filter. These components can become clogged or worn, causing the car to stall. I would recommend taking it to a mechanic to have it checked and possibly replaced if needed.

Another possibility is an issue with the ignition system. This could be caused by a faulty ignition coil or spark plugs. It's important to get this checked out as soon as possible, as it can lead to more serious problems if left unresolved.

Have you had the car serviced recently? It could be due for a tune-up or oil change, which can affect its performance. Also, make sure to use good quality fuel in your Polo to prevent any potential issues.