EA07011 · EA
STEERING:ELECTRIC POWER ASSIST SYSTEM Investigation
THE OFFICE OF DEFECTS INVESTIGATION (ODI) ANALYZED CONSUMER COMPLAINTS TO BMW OF NORTH AMERICA, LLC (BMW)AND TO ODI THAT ALLEGED FAILURES OF THE ELECTROHYDRAULIC POWER STEERING (EHPS) USED IN MODEL YEAR 2002 THROUGH 2003 MINI COOPER VEHICLES.THE ANALYSIS DETERMINED THAT 43 OF THE 52 (83%) REPORTS WERE RELATED TO ALLEGATIONS OF POWER STEERING LOSS AND 9 (17%) WERE RELATED TO ALLEGATIONS OF ENGINE COMPARTMENT FIRES. ALTHOUGH SOME OF THE REPORTS ALLEGING FIRES NOTE SMALL FLAMES WERE VISIBLE IN THE ENGINE COMPARTMENT, ANALYSIS OF THE DAMAGE CAUSED BY THESE FAILURES INDICATES THAT EVEN THE MOST SEVERE INCIDENTS WERE LIMITED TO LOCALIZED THERMAL DAMAGE TO THE EHPS ELECTRICAL CONNECTIONS AND WIRING INSULATION.NONE OF THE COMPLAINTS ALLEGING LOSS OF POWER ASSISTED STEERING INDICATED THAT THE INCREASED EFFORT RESULTED IN A CRASH OR LOSS OF VEHICLE CONTROL. A SAFETY-RELATED DEFECT TREND 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 MONITOR THIS ISSUE AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY CIRCUMSTANCES.SEE DOCUMENT FILE FOR ADDITIONAL INFORMATION REGARDING THIS RESUME.
PE05053 · PE
AIR BAGS:SIDE/WINDOW Investigation
IN MARCH 2006, BMW REISSUED A SERVICE BULLETIN FIRST ISSUED IN SEPTEMBER 2003, TO MINI DEALERS REGARDING THE REPAIR PROCEDURE FOR IMPROPER WIRE CRIMPS IN APPROXIMATELY 31,500 MODEL YEAR 2002 AND 2003 MINI COOPER VEHICLES PRODUCED UP TO JANUARY 2003.THE NEW SERVICE BULLETIN STATES THAT THE WARRANTY COVERAGE FOR THE ISSUE (I.E., AIR BAG WARNING LAMP ILLUMINATION WITH FAULT CODE FOR HIGH RESISTANCE IN SIDE AIR BAG/SEAT BELT PRETENSIONER CIRCUIT) IS EXTENDED TO 10 YEARS OR 150,000 MILES, WHICHEVER OCCURS FIRST.BMW PLANS TO SEND LETTERS TO OWNERS DURING MARCH 2006.THE SUBJECT WIRE CRIMPS ARE LOCATED UNDER THE FRONT SEATS AND ARE PART OF THE MAIN WIRING HARNESS THAT INTERFACE WITH THE UNDER-SEAT WIRING HARNESS CONNECTORS FOR SIDE AIR BAG AND SEAT BELT PRETENSIONER MODULES.BMW STATED THAT, ALTHOUGH THE SUBJECT CRIMPS WERE IMPROPERLY MANUFACTURED, THE CRIMP CONNECTION IS STILL SUFFICIENT FOR THE RESTRAINT SYSTEM TO DEPLOY WHEN NEEDED.ACCORDING TO BMW, THE ELECTRICAL RESISTANCE LEVELS IN THE SUBJECT VEHICLES CAN EXCEED THE THRESHOLD THAT ILLUMINATES THE AIR BAG WARNING LAMP, BUT THEY DO NOT EXCEED A MUCH HIGHER LIMIT IN WHICH DEPLOYMENT OF THE RESTRAINTS MAY NO LONGER OCCUR.ODI BELIEVES THAT THERE IS LACK OF EVIDENCE AT THIS TIME TO CONCLUDE THAT THE RESTRAINT SYSTEMS MAY NOT DEPLOY WITH THE HIGH RESISTANCE CONDITION.THE AGENCY BELIEVES THAT FURTHER EXPENDITURE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED AT THIS TIME.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY WILL MONITOR THE ISSUE AND RESERVES THE RIGHT TO TAKE FUTURE ACTION IF WARRANTED BY THE CIRCUMSTANCES.