The widespread use of mobile and wireless computing platforms is leading to a growing interest on dependability issues. Several research studies have been conducted on dependability of mobile environments, but none of them attempted to identify system bottlenecks and to quantify dependability measures. This paper proposes a distributed automated infrastructure for monitoring and collecting spontaneous failures of the Bluetooth infrastructure, which is nowadays more and more recognized as an enabler for mobile systems. Information sources for failure data are presented, and preliminary experimental results are discussed.