Originally Posted by
vysean
Only word of caution would be that the last time I rode the S-Bahn (S1 if it matters), it split into two trains at one stop, with the front half going elsewhere and the back half going to the airport. Most (if not all) of the announcements were in German, so those who speak none might be caught off-guard and end up somewhere they didn't want to be...
Things like this are displayed on the signs above the platform. Just watch the train that you board. It'll have letters A-F (or A-D, depending on the length, I don't remember), and position of the train with respect to those letters on the platform.