thanks everyone. looks like munich is the nearest place with guiding and scouting units are only in the north, wikipedia reckons there are 150 different scout and guide associations and federations in germany though so might look local!
The best way to find out where there are units in BGIFC is to contact our Administrator, Jane Sheridan at CHQ, you can find her email on the BGIFC website. I certainly know that there were units in Munich, and that Germany is a County ( BGIG ) known as British Guides in Germany.
I'm a Guide leader and DC for Munich.
We have 2 Brownie units here in Munich, one central/south-east and at BIS (Bavarian International School).
Otherwise there's a Brownie unit near Stuttgart.
As far as I know there are no other units in Southern Germany - where were you looking for ?