One problem related to adaptive cruise control has been reported for the 2013 Mercedes Benz ML350. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Mercedes Benz ML350 based on all problems reported for the 2013 ML350.
Both the front distronic system,which controls adaptive cruise control and emergency braking, and the blind spot warning have failed. Failure of both systems is usually caused by water getting into the respective control units related to poor sealing allowing water to enter and causing the systems to fail. I believe that these systems are critical to vehicle safety. The pre safe braking is essential to the safe operation of the vehicle. Blind spot warning failure is also a safety item on vehicles like these with large blind spot areas. Dealer has been no help other than repairs costing almost as much as the vehicle is worth. Very poor design and unsafe when these critical systems fail.