One problem related to door latch has been reported for the 2014 Mercedes Benz S550. The most recently reported issues are listed below.
The contact owns a 2014 mercedes-benz S550. The contact stated that the doors failed to lock manually or with keys. The contact called mercedes-benz of cutler bay (10701 sw 211 st, cutler bay, FL 33189, (786) 232-0364) to inform the dealer of the failure. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure but offered no additional assistance. The approximate failure mileage was 55,000.