NHTSA Complaint #10298842 — 1994 MERCEDES BENZ 320

1. MULTIPLE WARNING LIGHT ALARMS OVER 12 MONTH PERIOD. 2. AFTER MANY FRUITLESS AND EXPENSIVE REPAIRS OF SENSORS, THE PROBLEM WAS TRACED TO A DEFECTIVE ENGINE MAIN WIRING HARNESS, WHERE THE INSULATION ON INDIVIDUAL WIRES HAD LARGELY DISINTEGRATED. THIS WAS REPORTEDLY DUE TO USE OF DEFECTIVE INSULATION AT THE TIME OF MANUFACTURE, WHICH OVER TIME AND NORMAL USE, WOULD DISINTEGRATE AND BREAK OFF, ENABLING INDIVIDUAL WIRES IN THE HARNESS TO SHORT TOGETHER. THE REPAIR FACILITY HAD MAYBE 20-25 OF THESE FAILED HARNESSES HANGING ON THE WALL AS A DISPLAY - THIS IS IN A SMALL TOWN, SO THE TOTAL NUMBER MUST BE VERY LARGE IN THE USA. MERCEDES BENZ REFUSED TO TAKE RESPONSIBILITY FOR THE PROBLEM OR THE REPAIR, CLAIMING ESSENTIALLY THAT IN 10 YEARS FROM MANUFACTURE DATE, ANYTHING CAN HAPPEN TO A VEHICLE AND THAT IS NOT THEIR RESPONSIBILITY. THIS FAILURE PRODUCED UNSAFE CONDITIONS, THE CAR WOULD FAIL TO START, STOP RUNNING ON THE ROAD AND WOULD FAIL TO RESTART, ETC. 3. THE WIRING HARNESS WAS REPLACED, AT MY COST OF CLOSE TO $1000. THE PROBLEM HAS NOT RECURRED SINCE. THE OLD PART IS STILL AVAILABLE FOR INSPECTION. *TR