2000 Mercedes-Benz S Class Recalls

THE SUBJECT S-CLASS VEHICLES CONTAIN A COMPRESSED AIR SUSPENSION SYSTEM THAT USES AIR STRUTS ON EACH OF THE FOUR WHEELS IN LIEU OF TRADITIONAL SPRINGS AND SHOCK ABSORBERS.THESE AIR STRUTS USE COMPRESSED AIR TO SUPPORT THE WEIGHT OF THE VEHICLE AND CONTROL RIDE HEIGHT.IN THE EVENT OF THE LOSS OF AIR FROM THE SYSTEM, AN ALERT WILL FLASH ON THE INSTRUMENT CLUSTER WARNING THE DRIVER TO EITHER DRIVE CAREFULLY OR TO STOP THE VEHICLE.THE VEHICLE RIDE HEIGHT CAN BE REDUCED BY AS MUCH AS 105 MM BELOW NORMAL RIDE HEIGHT BEFORE THE FULL LOAD OF THE VEHICLE FOR THAT WHEEL COMES TO REST ON A STEEL ROD, WITH A RUBBER STOP ON THE END, LOCATED IN THE SHOCK ABSORBER.THIS REST-STOP CONDITION IS DESIGNED SUCH THAT THERE IS NO IMPACT ON VEHICLE CONTROL.MERCEDES-BENZ (MBUSA) SUPPLIED VIDEO SHOWING A VEHICLE IN THIS CONDITION OPERATING UNDER SEVERAL DIFFERENT SITUATIONS INCLUDING EVASIVE MANEUVERS DEMONSTRATING THE ABILITY OF THE VEHICLE TO BE CONTROLLED EFFECTIVELY WITH A RIDE HEIGHT REDUCED TO THE MINIMUM.ONLY THOSE COMPLAINTS TO ODI AND MBUSA THAT ALLEGED A STEERING INTERFERENCE DURING A REDUCED RIDE HEIGHT CONDITION WERE COUNTED IN THIS RESUME FAILURE REPORT.SOME COMPLAINTS ALLEGED THAT WITH A REDUCED RIDE HEIGHT AND A STOP NOW WARNING MESSAGE THERE WAS A RUBBING NOISE WHEN TURNING, BUT THE ABILITY TO STEER THE VEHICLE WAS NOT COMPROMISED.A SAMPLING OF WARRANTY CLAIMS SUBMITTED BY MBUSA DID NOT REVEAL ANY INDICATING A LOSS OF CONTROL DUE TO AN AIRMATIC SYSTEM FAILURE.THERE WAS ONE CRASH REPORTED BY MBUSA TO ODI BUT THE INFORMATION AVAILABLE INDICATED THAT IT RELATED TO SUSPENSION SYSTEMS AND IT WAS NOT POSSIBLE TO VERIFY THAT THE INCIDENT WAS RELATED TO AN AIRMATIC SYSTEM FAILURE. FURTHER USE OF AGENCY RESOURCES IN THIS MATTER DOES NOT APPEAR TO BE WARRANTED.THE AGENCY WILL CONTINUE TO MONITOR COMPLAINTS AND OTHER INFORMATION RELATING TO THE ALLEGED DEFECT IN THE SUBJECT VEHICLES AND WILL TAKE FURTHER ACTION IN THE FUTURE IF WARRANTED.THIS PRELIMINARY EVALUATION IS CLOSED.

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS INVESTIGATION BASED ON SEVEN REPORTS INDICATING THAT THE INSTRUMENT CLUSTERS IN MODEL YEAR (MY) 2000-2001 MERCEDES-BENZ S CLASS VEHICLES FAILED IN THAT CONSUMERS WERE UNABLE TO READ ANY OF THE GAUGES WHILE OPERATING THEIR VEHICLES AT ANY SPEED DURING THE DAY OR NIGHT.IN ITS 573 REPORT TO NHTSA DATED FEBRUARY 1, 2006, MERCEDES-BENZ USA, LLC (MERCEDES-BENZ)STATES THAT THERE ARE THREE INSTRUMENT CLUSTER FAILURE MODES THAT WOULD RESULT IN UNDESIRABLE OPERATION.THESE THREE FAILURE MODES ARE SPECIFIC TO CERTAIN DATES OF PRODUCTION (SEE BELOW) FOR THE SUBJECT VEHICLE, AND MERCEDES-BENZ IS RECALLING THOSE VEHICLES WITHIN THOSE DATES.SPECIFIC INFORMATION REGARDING THE FAILURE MODES IS DESCRIBED IN MERCEDES-BENZ'S REPORT (SEE NHTSA RECALL 06V028).THREE OF THE ODI COMPLAINTS SUBMITTED TO MERCEDES-BENZ INVOLVE VEHICLES THAT WERE PRODUCED BEFORE THE DATES OF PRODUCTION OF VEHICLES AFFECTED BY THE THREE FAILURE MODES.BASED ON REVIEW OF THOSE THREE COMPLAINTS, MERCEDES-BENZ WAS UNABLE TO IDENTIFY A RELATION OF THOSE THREE TO THE DEFECTS IDENTIFIED IN THE RECALLED VEHICLES.ALL OF THE MERCEDES-BENZ COMPLAINTS WITH VINS IDENTIFIED WERE WITHIN THE RECALL POPULATION (ONLY 2 VEHICLE VINS WERE NOT AVAILABLE TO POSITIVELY IDENTIFY VEHICLE BUILD DATE).THE RECALL POPULATION WILL INCLUDE 36,911 S CLASS AND CL CLASS MERCEDES-BENZ VEHICLES BUILT IN THE PRODUCTION DATES RANGING FROM JUNE 2000 THROUGH NOVEMBER 2000, JANUARY 2002 THROUGH APRIL 2002, AND MAY 2004 THROUGH SEPTEMBER 2004.THESE DATES OF PRODUCTION COVER VEHICLES FROM THE 2000-2002 MY AND THE 2004-2005 MY.TO CORRECT THE CONDITION, MERCEDES-BENZ WILL REPLACE ALL AFFECTED INSTRUMENT CLUSTERS WITH IMPROVED ONES THAT ARE NOT SUBJECT TO THE FAILURE MODES.MERCEDES-BENZ WILL BEGIN OWNER NOTIFICATION DURING THE 1ST QUARTER OF 2006.

THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS PRELIMINARY EVALUATION TO INVESTIGATE ALLEGATIONS OF ENGINE CRANKSHAFT PULLEY HARMONIC BALANCER FAILURE THAT COULD RESULT IN LOSS OF POWER-STEERING ASSIST.ODI HAS RECEIVED A TOTAL OF 546 NON-DUPLICATIVE REPORTS THAT ALLEGE ENGINE CRANKSHAFT PULLEY HARMONIC BALANCER FAILURE ON ALL MERCEDES-BENZ VEHICLES USING THE SUBJECT COMPONENT.THE SUBJECT COMPONENT FAILURES ARE PROGRESSIVE IN NATURE AND ONLY A SMALL PERCENTAGE OF THE COMPLAINTS AND WARRANT CLAIMS INVOLVED A FAILURE THAT HAD PROGRESSED FAR ENOUGH TO EFFECT POWER STEERING PERFORMANCE (6 OF 55 ODI COMPLAINTS REFERENCE INCREASED STEERING EFFORT).THERE HAVE BEEN NO CRASHES OR INJURIES RELATED TO THE ALLEGED DEFECT.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE SUMMARY REPORT ATTACHED FOR FURTHER DETAIL.