Café eßkultur located right inside Dahlem Museums, it's not really big, but nice decorated and…read morecomfortable. After a couple hours admiring and enjoying the breathtaking Ethnologisches Museum, the Museum für Asiatische Kunst and etc., this is a great rest point to recharge yourself.
Eßkultur is on the ground floor, which offers coffee, juices and some cakes. If you are hungry than better go to the restaurant downstairs. They also seats open air, which allow you sit in the middle of the museums. The price is surprisingly reasonable, service is quite friendly as well, beside English and German, I also heard some of the staff speaking French.
The café itself is really close to one of the entrances of Dahlem museums. Which made it easy to find and it also close to the gifts/books shop, very convenient if you want to buy some copies of the collection here exhibited. There are also some flyers about the different programs happening at the moment and some infos about the museums here, really helpful. It's just right in front the café entrance, you won't miss it