NHTSA Complaint #11320867 — 2013 MERCEDES-BENZ GL550

2013 MERCEDES ROUGH RUNNING AT IDLE, VARIOUS FAULTS STORED FOR INJECTOR QUANTITY COMPENSATION FOR CYLINDER BALANCING. FAULT CODE P1CWF-85. THE CHECK ENGINE LIGHT EVENTUALLY CAME ON. UPON FURTHER INSPECTION AND DIAGNOSIS FOUND THAT BOTH ENGINE BANK 1 AND 2 CAMSHAFT POSITION SENSORS WERE FULL OF OIL DUE TO FAILED INTERNAL PACKING OF SENSOR. INSPECTED INJECTOR CONNECTORS AND HAD OIL, O2 SENSORS CONNECTOR HAD OIL, POWER TRAIN CONTROL UNIT FULL OF OIL. IF ENOUGH OIL WAS TO FLOW THROUGH THE ELECTRICAL WIRES TO THE CONTROL UNIT AS SUCH THIS INSTANCE OR SENSOR MAY RESULT IN IMMEDIATE CATASTROPHIC FAILURE AND VEHICLES ABILITY TO DRIVE. IF THE VEHICLE IS ON THE HIGHWAY AND STOPS WORKING MAY ENDANGER OCCUPANTS. ALSO NOTED THAT THE FAILED PART IS A MERCEDES BENZ SERVICE BULLETIN FOR PREVIOUS MALES AND MODELS BUT THIS 2013 GL550 IS NOT INCLUDED EVEN THOUGH THE SAME PART NUMBER IS USED IN THE NEW CARS AS THE PREVIOUS VEHICLES WITH THIS MERCEDES BENZ ACKNOWLEDGED ISSUE. ALSO NOTED THAT THE BODY HARNESS CONNECT TO THE SAME ENGINE CONTROL UNIT WHICH CONTROLS THE SAFETY FUNCTIONS SUCH AS AIRBAGS, SPEEDOMETER AND OTHER ESSENTIAL FUNCTIONS.*DT*JB