MANET environments suffer from changing connectivity conditions and radio contention among stations that conform it. Despite the several on-going endeavors, no simple and effective solution has yet been offered that can be easily deployed and cope with real-life environments and restrictions. In this work we present a distributed admission control mechanism for MANETs called DACME that combines the use of probes with the emerging IEEE 802.11e technology. We show that with DACME we can greatly improve the support of multimedia applications in MANETs with little overhead.