Nowadays, the diffusion absorption process is well known and mainly used as refrigerators in hotels and caravans. The huge advantage of this process is the noiseless and wear-free operation due to the absence of moving parts. There are few studies where the diffusion absorption process is combined with solar cooling. The main disadvantages are the low efficiency and the high weight in relation to the cooling capacity. This paper presents a diffusion absorption chiller directly heated by a solar collector with enhanced efficiency. The generator, acting as the bubble pump of the diffusion absorption process, is integrated into a double-glazed fiat plate collector. The design and build-up of the solar-driven diffusion absorption chiller is presented. Measurement results of the solar-driven diffusion absorption chiller recorded in a solar simulator as well as in outdoor tests are shown. Maximum cooling capacities of 226 W and 228 W are reached. The maximum efficiency of the whole process and therefore the percentage of the insolation incident on the solar collector, converted into cooling capacity, is 11.4 %. Thus, the efficiency is higher than in similar concepts. Finally, an outlook is provided on further improvements using a bubble pump unit with a plate heat exchanger (PHX) generator to increase the cooling capacity.