One problem related to warnings has been reported for the 2014 Mercedes Benz CLA250. The most recently reported issues are listed below.
While driving out of a driveway, a car pulled near my car. At that time, the car was stationary. My wife heard the pre-collision warning. The the car completely shutoff or stalled. Turned off the car completely by turning the key. Then turned the car back on. Lucky there was no accident.