2006 Mercedes-Benz S-Class ELECTRICAL SYSTEM,ENGINE

Vehicle stall - engine cut off - on highway at speed (50-55miles/hr) posing driver and passenger safety. No OBD error code or ECU error Similar incidents reported by Mercedes owners S500 model across USA As posted on Mercedes forums.

TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ S430. WHILE DRIVING 40 MPH, THE VEHICLE STARTED TO JERK AND ALL THE WARNING INDICATORS ILLUMINATED AND FLICKERED ON THE INSTRUMENT PANEL. THE CONTACT DROVE THE VEHICLE HOME AND IT STALLED. THE VEHICLE FAILED TO RESTART AND THE KEY FAILED TO RELEASE FROM THE IGNITION SWITCH. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE A DIAGNOSTIC TEST WAS COMPLETED, BUT NO FAILURE CODE WAS FOUND. THE VEHICLE WAS NOT REPAIRED. THE VEHICLE WAS NOT TAKEN TO A DEALER. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 134,000.

ALL ELECTRICAL WENT OUT, IN MOTION ON CITY STREET, THEN PULLED OVER. HAD KEY IN MY POCKET. ENGINE STAYED RUNNING AND COULD NOT TURN OFF WITH BUTTON OR BY KEY. GOT OUT OF OF CAR, CLOSED DOOR AND COULD NOT GET BACK IN ANY DOOR EVEN THOUGH DRIVER DOOR WAS NOT LOCKED (BUTTON UP). ENGINE CONTINUED TO RUN UNTIL COOLANT EXPANSION TANK EXPLODED. IF CHILD WOULD HAVE BEEN IN BACK, WOULD HAVE HAD TO BRAKE WINDOW TO GET IN. THIS IS A BIG SAFETY ISSUE WHEN SO MANY OPTIONS DEPEND ON CAR'S ELECTRICAL WORKING. MERCEDES SAIL ELECTRICAL SYSTEM FAILED CAUSING OVER $15,000 IN DAMAGE CAUSE I WAS UNABLE TO CUT ENGINE OFF. I HAVE SOLD THE CAR, BUT BELIEVE IT'S IMPORTANT TO HAVE SUCH A SAFETY ISSUE INVESTIGATED.