Z pewnego popularnego portalu turystycznego, którego nazwa zaczyna się na "T":

Regardless of the Terminal assigned for your flight (T4 or T4S), you will always have to enter via T4. Both buildings, located at the northern end of the current airport and facing each other. Passengers are transferred in an APM (automated people mover) which is an underground driverless train running continually between T4 and T4S. The journey lasts approximately 3 minutes.

To get to the transit train from Terminal 4 go to the departures and arrivals floor 1 centre of the terminal building where the gates and majority of shops are located and get an escalator or lift down to level -2 where the shuttle train is located. Gates M, R, S & U are also to be found on level -2.

There are electronic signs above the APM telling you when the next train is due (normally 2-3 minutes wait) and the doors will open automatically to allow you to board and disembark.

When you arrive at T4S you will see some escalators which will take you up to the shops, cafes and boarding gates