IllustrationTHE POWER STEERING GOES OUT INTERMITTENTLY. *TR
2005 Mini Cooper S
Owner reports · Recalls · Investigations
More warning signs than most Cooper S years
Owner complaints for the 2005 Mini Cooper S are substantially higher than the model-year median of 23.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Cooper S years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
150–25K
4525–50K
12050–75K
7275–100K
39100–150K
10150K+
301 reports with mileage · 13 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Steering. Review the 212 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 71 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 23 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
6 crash reports17 fire reports2 injury reports
Steering complaints
212 reportsWHILE DRIVING THROUGH A RESIDENTIAL AREA, THE WHEEL OF THE CAR BECAME VERY HARD TO TURN. IT WAS DETERMINED THAT THE ELECTRIC HYDRAULIC POWER STEERING PUMP (EHPS) WAS MALFUNCTIONING. THE FAN OF THE EHPS WAS NOT DISENGAGING WHEN THE CAR IGNITION WAS TURNED OFF, THEREFORE RUNNING DOWN THE BATTERY AND CAUSING THE EHPS TO NOT WORK C…
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WHILE DRIVING THROUGH A RESIDENTIAL AREA, THE WHEEL OF THE CAR BECAME VERY HARD TO TURN. IT WAS DETERMINED THAT THE ELECTRIC HYDRAULIC POWER STEERING PUMP (EHPS) WAS MALFUNCTIONING. THE FAN OF THE EHPS WAS NOT DISENGAGING WHEN THE CAR IGNITION WAS TURNED OFF, THEREFORE RUNNING DOWN THE BATTERY AND CAUSING THE EHPS TO NOT WORK CORRECTLY. THE NEXT DAY, WITH THE SAME EHPS, THE POWER STEERING WAS WORKING FINE. *TR
I WAS EXITING THE INTERSTATE AND THE RAMP CURVED TO THE RIGHT, AS I BEGAN TO NEGOTIATE THE CURVE I NOTICED I HAD NO POWER STEERING AT ALL. I REACHED MY DESTINATION ABOUT 15 MINUTES LATER AND HAD NO POWER STEERING ASSISTANCE AT ALL THE ENTIRE TIME. I PARKED THE VEHICLE AND DID NOT USE IT AGAIN UNTIL 9/3/12 AND THE STEERING APP…
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I WAS EXITING THE INTERSTATE AND THE RAMP CURVED TO THE RIGHT, AS I BEGAN TO NEGOTIATE THE CURVE I NOTICED I HAD NO POWER STEERING AT ALL. I REACHED MY DESTINATION ABOUT 15 MINUTES LATER AND HAD NO POWER STEERING ASSISTANCE AT ALL THE ENTIRE TIME. I PARKED THE VEHICLE AND DID NOT USE IT AGAIN UNTIL 9/3/12 AND THE STEERING APPEARED TO BE WORKING PROPERLY AGAIN. IN READING THE INVESTIGATIVE STUDY I NOTED THAT IT MAY BE DUE TO AN ERROR IN THE INTERNAL ELECTRONICS AND MAY ALSO RESULT IN A CONTINUOUS RUNNING OF THE POWER STEERING PUMP. LAST YEAR ALMOST TO THE DAY, THE ELECTRICAL SYSTEM WENT HAYWIRE AND THE CAR WOULD NOT STEER AND HAD WHAT SEEMED LIKE POWER SURGE AND AFTER SHUTTING THE CAR OFF AND REMOVING THE KEY THE CAR CONTINUED TO MAKE A CLICKING SOUND AND THE WINDOWS ROLLED DOWN BY THEMSELVES. I COULD NOT GET THE CAR TO RESTART AND HAD IT TOWED TO THE DEALER AND WAS TOLD TO REPLACE THE BATTERY,WHICH I DID, I NOW WONDER IF THAT WAS A RELATED INCIDENT. *TR
THE PASSENGER AIR BAG WEIGHT SENSOR STOP WORKING. AS A RESULT MY VEHICLE DISPLAYS A WARNING THAT THE PASSENGER SIDE AIR BAGS ARE OFF. MY DRIVER SIDE FOG LIGHT HOUSING MELTED AND CRACK APART. I USED STOCK 55W HALOGEN BULBS. MY PASSENGER SIDE FOG LIGHT HOUSING HAS ALSO BEGUN TO MELT. MY POWER STEERING IS NOT LEAKING NOW. B…
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THE PASSENGER AIR BAG WEIGHT SENSOR STOP WORKING. AS A RESULT MY VEHICLE DISPLAYS A WARNING THAT THE PASSENGER SIDE AIR BAGS ARE OFF. MY DRIVER SIDE FOG LIGHT HOUSING MELTED AND CRACK APART. I USED STOCK 55W HALOGEN BULBS. MY PASSENGER SIDE FOG LIGHT HOUSING HAS ALSO BEGUN TO MELT. MY POWER STEERING IS NOT LEAKING NOW. BUT IT HAS BEEN REPLACED 3 TIMES. *TR
RIGHT AFTER EXITING THE HIGHWAY, THE STEERING WHEEL BECAME SUDDENLY VERY STIFF AS I WAS MAKING A STANDARD 90 TURN. I ALMOST HIT THE CAR NEXT TO ME BUT DIDN'T AS I MANAGED TO HIT THE BRAKES. I FINISHED THE CURVE ON THE VERY LAST LANE ON THE RIGHT. IF A CAR HAD BEEN ON MY WAY, IT WOULD HAVE BEEN A CRASH, FORTUNATELY THERE WAS NONE…
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RIGHT AFTER EXITING THE HIGHWAY, THE STEERING WHEEL BECAME SUDDENLY VERY STIFF AS I WAS MAKING A STANDARD 90 TURN. I ALMOST HIT THE CAR NEXT TO ME BUT DIDN'T AS I MANAGED TO HIT THE BRAKES. I FINISHED THE CURVE ON THE VERY LAST LANE ON THE RIGHT. IF A CAR HAD BEEN ON MY WAY, IT WOULD HAVE BEEN A CRASH, FORTUNATELY THERE WAS NONE. MINI DIAGNOSED A POWER STEERING PUMP FAILURE. BROWSING ON THE WEB, I CAME ACROSS PAGES OF PEOPLE HAVING HAD THE SAME ISSUE FOR THIS YEAR'S MODEL (MINI COOPER S 2005). CANADIAN AUTHORITIES EVEN ORDERED A RECALL FOR THIS EXACT SAME FAILURE. I HAVE ALSO READ THAT NHTSA IS CURRENTLY STUDYING THIS ISSUE; COULD YOU PLEASE CONFIRM THIS IS TRUE ANY IDEA HOW LONG IS THE PROCESS TO DECIDE WHETHER OR NOT A RECALL WILL BE DECIDED IF A RECALL WAS DECIDED, WOULD WE GET REIMBURSE NOT MATTER THE REPAIR WAS DONE IN A MINI DEALER OR AN INDEPENDENT GARAGE ? THANK YOU *TR
MY POWER STEERING WENT OUT WHILE I WAS MAKING A LEFT TURN IN FRONT OF ONCOMING TRAFFIC. I MANAGED TO AVOID HITTING THE CURB AND PULLED OVER AFTER COMPLETING THE TURN. IT FELT LIKE DRIVING WITH FOUR FLAT TIRES. AFTER RESTARTING, THE POWER STEERING WORKED AGAIN. THE SAME THING HAPPENED AGAIN TWO DAYS LATER. IN BOTH CASES, THIS HAP…
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MY POWER STEERING WENT OUT WHILE I WAS MAKING A LEFT TURN IN FRONT OF ONCOMING TRAFFIC. I MANAGED TO AVOID HITTING THE CURB AND PULLED OVER AFTER COMPLETING THE TURN. IT FELT LIKE DRIVING WITH FOUR FLAT TIRES. AFTER RESTARTING, THE POWER STEERING WORKED AGAIN. THE SAME THING HAPPENED AGAIN TWO DAYS LATER. IN BOTH CASES, THIS HAPPENED SHORTLY AFTER STARTING UP. *TR
THE FIRST TIME MY POWER STEERING WENT OUT I WAS AT A STOP SIGN. I WAS MAKING A RIGHT TURN AND HAD DIFFICULTY MAKING THE TURN. THE POWER STEERING WENT OUT AGAIN ANOTHER TIME WHEN I WAS IN THE MIDDLE OF A TURN, MAKING IT DIFFICULT TO TURN. I WAS FORTUNATE THERE WERE NO OTHER CARS AROUND. TODAY, 8/20/2012 IS THE MOST RECENT DAY THA…
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THE FIRST TIME MY POWER STEERING WENT OUT I WAS AT A STOP SIGN. I WAS MAKING A RIGHT TURN AND HAD DIFFICULTY MAKING THE TURN. THE POWER STEERING WENT OUT AGAIN ANOTHER TIME WHEN I WAS IN THE MIDDLE OF A TURN, MAKING IT DIFFICULT TO TURN. I WAS FORTUNATE THERE WERE NO OTHER CARS AROUND. TODAY, 8/20/2012 IS THE MOST RECENT DAY THAT IT WENT OUT. I WAS DRIVING AT APPROXIMATELY 35 MPH AND MAKING A LEFT TURN WHEN I NOTICED IT WAS OUT. I HAVE FIGURED OUT THAT IF I TURN OFF MY CAR IT COMES BACK ON. LUCKILY I HAD TO STOP BEFORE GETTING ONTO THE FREEWAY SO I WAS ABLE TO CONTROL MY CAR AT HIGH SPEEDS. *TR
THE POWER STEERING WENT OUT WHILE DRIVING THE VEHICLE. IT HAS OCCURRED INTERMITTENTLY SINCE THEN.
TL* THE CONTACT OWNS A 2005 MINI COOPER S. THE CONTACT STATED THAT POWER STEERING FAILED. IN ADDITION, THE VEHICLE WAS UNABLE TO BE STARTED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHO ADVISED THAT THE FAILURE CAUSED DAMAGE TO THE ELECTRICAL SYSTEM, WHICH HAD BECOME INOPERABLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILUR…
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TL* THE CONTACT OWNS A 2005 MINI COOPER S. THE CONTACT STATED THAT POWER STEERING FAILED. IN ADDITION, THE VEHICLE WAS UNABLE TO BE STARTED. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHO ADVISED THAT THE FAILURE CAUSED DAMAGE TO THE ELECTRICAL SYSTEM, WHICH HAD BECOME INOPERABLE. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 105,916 AND THE CURRENT MILEAGE WAS 105,960.
POWER STEERING ASSIST FAILS REPEATEDLY. SOLUTION HAS BEEN TO STOP CAR AND RESTARTED ENGINE; SEEMS TO RESET PUMP ELECTRONICS. THIS INTERMITTENT POWER STEERING FAILURE HAS HAPPENED DOZENS OF TIMES IN THE 3 YEARS WE'VE OWNED THE CAR AND CAN BE VERY DANGEROUS IF DRIVER IS NOT AWARE OF THE CHANGE IN STEERING ABILITY. WE'RE GOING TO H…
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POWER STEERING ASSIST FAILS REPEATEDLY. SOLUTION HAS BEEN TO STOP CAR AND RESTARTED ENGINE; SEEMS TO RESET PUMP ELECTRONICS. THIS INTERMITTENT POWER STEERING FAILURE HAS HAPPENED DOZENS OF TIMES IN THE 3 YEARS WE'VE OWNED THE CAR AND CAN BE VERY DANGEROUS IF DRIVER IS NOT AWARE OF THE CHANGE IN STEERING ABILITY. WE'RE GOING TO HAVE TO REPLACE THE PUMP I BELIEVE AND WITH ALL THE OTHER COMPLAINTS ABOUT THIS PROBLEM I FEEL MINI/BMW SHOULD VIEW THIS AS A MANUFACTURER DEFECT AND COVER UNDER WARRANTY -- IT IS CLEARLY A DANGEROUS PART AND POOR DESIGN. *TR
Official recalls
215V660000 · Steering:electric Power Assist System
Oct 15, 2015
BMW of North America, LLC (BMW) is recalling certain model year 2002-2005 MINI Cooper and Cooper S vehicles and 2005 Cooper and Cooper S Convertible vehicles. The affected vehicles may experience temporary or permanent loss of the electro-hydraulic steering assistance.
Consequence & remedy
Consequence: If the vehicle experiences a loss of power steering assist, extra steering effort will be required at lower speeds, potentially increasing the risk of a vehicle crash.
Remedy: MINI will notify owners, and dealers will inspect the electro-hydraulic power steering system, replacing the components and wiring, as necessary, free of charge. Interim notices were mailed to owners on December 10, 2015. Owners will receive a second notice when remedy parts become available. Owners may contact MINI customer service at 1-866-825-1525.
15V205000 · Air Bags:frontal
Apr 6, 2015
BMW of North America, LLC (BMW) is recalling certain model year 2005-2006 MINI Cooper and Cooper S vehicles manufactured January 5, 2005, to November 28, 2006, and 2005-2008 MINI Cooper Convertible and Cooper S Convertible vehicles manufactured January 5, 2005, to July 31, 2008. Due to manufacturing, installation, and exposure issues, the front passenger seat occupant detection mat may not function properly and, as a result, the front passenger air bag may not deploy in a crash.
Consequence & remedy
Consequence: An improperly functioning mat may cause the passenger frontal air bag to be inactive when the seat is occupied, and in the event of a crash, the air bag will not deploy, increasing the passenger's risk of injury.
Remedy: MINI will notify owners, and dealers will replace the front passenger seat occupant detection mat, free of charge. The recall began on October 12, 2015. Owners may contact MINI customer service at 1-866-825-1525.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2EA11005 · Loss Of Power Steering Assist
Opened May 4, 2011 · Closed Jan 5, 2016
Status: closed (inferred from source dates) · Steering; Steering:electric Power Assist System; Steering:hydraulic Power Assist System; Steering:hydraulic Power Assist:pump
The Office of Defects Investigation (ODI) originally opened the investigation of loss of power steering assist in model year (MY) 2004 and 2005 Mini Cooper as Preliminary Evaluation PE10-038.The investigation was upgraded to Engineering Analysis EA11-005 in May, 2011.During EA11-005 the scope was expanded to include MY 2002 and 2003 vehicles that use the same steering system.The subject vehicles now include MY 2002, the first year BMW sold MINI in the U.S., through mid-MY 2005 covering approximately 109,000 vehicles.The subject vehicles use an electrically driven pump to provide hydraulic pressure to a conventional rack-and-pinion steering gear.A pump, the electric motor, and an electronic control unit (ECU) are housed in a single component BMW calls a Power Pack.The investigation focused on contaminant-induced failure of the ECU resulting in a loss of assist without warning.When assist is lost mechanical steering is retained however increased steering effort is required to keep the vehicle on an intended path.Some consumers reported that restarting the vehicle (cycling the ignition switch) would often reinstate the steering assist.Additionally, and by design, assist can also reinstate during the drive cycle in limited circumstances.The unexpected loss of assist, and/or possibly the reinstatement of assist while driving, may contribute to a loss of vehicle control in certain driving situations.During MY 2005 production BMW introduced a revised Power Pack design (the ECU incorporated a conformal coating of the circuit board) which resulted in a significant reduction in failures.ODI identified 20 reports describing crashes consistent with a loss of power assist event possibly caused by a failure of the Power Pack.Two reports alleged an injury however both were minor in nature and did not require emergency treatment (a subsequent doctor's visit occurred in one case).Ten of these reports described low speed crashes with minimal, or in most cases no property or vehicle damage (e.g., striking a movable barrier in a parking lot).Additionally 27 other reports alleged or indicated that a crash occurred due to a Power Pack failure however in reviewing these reports, ODI either 1) was unable to confirm that a crash actually occurred (8 reports), or 2) determined that the crash circumstances (e.g., adverse road/weather conditions) or cause (e.g., the crash was caused by steering linkage failure) were not attributable to a Power Pack failure (19 reports).Throughout the investigation BMW maintained that loss of assist in the subject vehicles did not constitute a safety related defect, noting that the subject vehicles are smaller, light weight vehicles that can be reasonably controlled when assist is lost.In May 2013 BMW launched a 13 year/150,000 mile extended warranty coverage utilizing the redesigned Power Pack as a replacement part.ODI continued its investigation.In July 2014 BMW provided ODI a status of the ongoing extended warranty program, and in May 2015 ODI requested an update of complaint data.Following a review of the provided data, ODI informed BMW of its assessment that loss of steering assist failures were not adequately resolved by an extended warranty program.On October 12, 2015 BMW notified NHTSA that it would conduct a safety recall (15V-660) on approximately 86,000 subject vehicles not previously remedied with the new design Power Pack through regular or extended warranty programs.The recall covers MY 2002-2005 MINI Cooper, MY 2002-2005 MINI Cooper S, and MY 2005 MINI Cooper/Cooper S convertibles manufactured through Feb 9, 2005.Vehicles produced after this date are not included si
Additional source detail variants (4)
Steering
The Office of Defects Investigation (ODI) originally opened the investigation of loss of power steering assist in model year (MY) 2004 and 2005 Mini Cooper as Preliminary Evaluation PE10-038.The investigation was upgraded to Engineering Analysis EA11-005 in May, 2011.During EA11-005 the scope was expanded to include MY 2002 and 2003 vehicles that use the same steering system.The subject vehicles now include MY 2002, the first year BMW sold MINI in the U.S., through mid-MY 2005 covering approximately 109,000 vehicles.The subject vehicles use an electrically driven pump to provide hydraulic pressure to a conventional rack-and-pinion steering gear.A pump, the electric motor, and an electronic control unit (ECU) are housed in a single component BMW calls a Power Pack.The investigation focused on contaminant-induced failure of the ECU resulting in a loss of assist without warning.When assist is lost mechanical steering is retained however increased steering effort is required to keep the vehicle on an intended path.Some consumers reported that restarting the vehicle (cycling the ignition switch) would often reinstate the steering assist.Additionally, and by design, assist can also reinstate during the drive cycle in limited circumstances.The unexpected loss of assist, and/or possibly the reinstatement of assist while driving, may contribute to a loss of vehicle control in certain driving situations.During MY 2005 production BMW introduced a revised Power Pack design (the ECU incorporated a conformal coating of the circuit board) which resulted in a significant reduction in failures.ODI identified 20 reports describing crashes consistent with a loss of power assist event possibly caused by a failure of the Power Pack.Two reports alleged an injury however both were minor in nature and did not require emergency treatment (a subsequent doctor's visit occurred in one case).Ten of these reports described low speed crashes with minimal, or in most cases no property or vehicle damage (e.g., striking a movable barrier in a parking lot).Additionally 27 other reports alleged or indicated that a crash occurred due to a Power Pack failure however in reviewing these reports, ODI either 1) was unable to confirm that a crash actually occurred (8 reports), or 2) determined that the crash circumstances (e.g., adverse road/weather conditions) or cause (e.g., the crash was caused by steering linkage failure) were not attributable to a Power Pack failure (19 reports).Throughout the investigation BMW maintained that loss of assist in the subject vehicles did not constitute a safety related defect, noting that the subject vehicles are smaller, light weight vehicles that can be reasonably controlled when assist is lost.In May 2013 BMW launched a 13 year/150,000 mile extended warranty coverage utilizing the redesigned Power Pack as a replacement part.ODI continued its investigation.In July 2014 BMW provided ODI a status of the ongoing extended warranty program, and in May 2015 ODI requested an update of complaint data.Following a review of the provided data, ODI informed BMW of its assessment that loss of steering assist failures were not adequately resolved by an extended warranty program.On October 12, 2015 BMW notified NHTSA that it would conduct a safety recall (15V-660) on approximately 86,000 subject vehicles not previously remedied with the new design Power Pack through regular or extended warranty programs.The recall covers MY 2002-2005 MINI Cooper, MY 2002-2005 MINI Cooper S, and MY 2005 MINI Cooper/Cooper S convertibles manufactured through Feb 9, 2005.Vehicles produced after this date are not included si
Steering:electric Power Assist System
The Office of Defects Investigation (ODI) originally opened the investigation of loss of power steering assist in model year (MY) 2004 and 2005 Mini Cooper as Preliminary Evaluation PE10-038.The investigation was upgraded to Engineering Analysis EA11-005 in May, 2011.During EA11-005 the scope was expanded to include MY 2002 and 2003 vehicles that use the same steering system.The subject vehicles now include MY 2002, the first year BMW sold MINI in the U.S., through mid-MY 2005 covering approximately 109,000 vehicles.The subject vehicles use an electrically driven pump to provide hydraulic pressure to a conventional rack-and-pinion steering gear.A pump, the electric motor, and an electronic control unit (ECU) are housed in a single component BMW calls a Power Pack.The investigation focused on contaminant-induced failure of the ECU resulting in a loss of assist without warning.When assist is lost mechanical steering is retained however increased steering effort is required to keep the vehicle on an intended path.Some consumers reported that restarting the vehicle (cycling the ignition switch) would often reinstate the steering assist.Additionally, and by design, assist can also reinstate during the drive cycle in limited circumstances.The unexpected loss of assist, and/or possibly the reinstatement of assist while driving, may contribute to a loss of vehicle control in certain driving situations.During MY 2005 production BMW introduced a revised Power Pack design (the ECU incorporated a conformal coating of the circuit board) which resulted in a significant reduction in failures.ODI identified 20 reports describing crashes consistent with a loss of power assist event possibly caused by a failure of the Power Pack.Two reports alleged an injury however both were minor in nature and did not require emergency treatment (a subsequent doctor's visit occurred in one case).Ten of these reports described low speed crashes with minimal, or in most cases no property or vehicle damage (e.g., striking a movable barrier in a parking lot).Additionally 27 other reports alleged or indicated that a crash occurred due to a Power Pack failure however in reviewing these reports, ODI either 1) was unable to confirm that a crash actually occurred (8 reports), or 2) determined that the crash circumstances (e.g., adverse road/weather conditions) or cause (e.g., the crash was caused by steering linkage failure) were not attributable to a Power Pack failure (19 reports).Throughout the investigation BMW maintained that loss of assist in the subject vehicles did not constitute a safety related defect, noting that the subject vehicles are smaller, light weight vehicles that can be reasonably controlled when assist is lost.In May 2013 BMW launched a 13 year/150,000 mile extended warranty coverage utilizing the redesigned Power Pack as a replacement part.ODI continued its investigation.In July 2014 BMW provided ODI a status of the ongoing extended warranty program, and in May 2015 ODI requested an update of complaint data.Following a review of the provided data, ODI informed BMW of its assessment that loss of steering assist failures were not adequately resolved by an extended warranty program.On October 12, 2015 BMW notified NHTSA that it would conduct a safety recall (15V-660) on approximately 86,000 subject vehicles not previously remedied with the new design Power Pack through regular or extended warranty programs.The recall covers MY 2002-2005 MINI Cooper, MY 2002-2005 MINI Cooper S, and MY 2005 MINI Cooper/Cooper S convertibles manufactured through Feb 9, 2005.Vehicles produced after this date are not included si
Steering:hydraulic Power Assist:pump
The Office of Defects Investigation (ODI) originally opened the investigation of loss of power steering assist in model year (MY) 2004 and 2005 Mini Cooper as Preliminary Evaluation PE10-038.The investigation was upgraded to Engineering Analysis EA11-005 in May, 2011.During EA11-005 the scope was expanded to include MY 2002 and 2003 vehicles that use the same steering system.The subject vehicles now include MY 2002, the first year BMW sold MINI in the U.S., through mid-MY 2005 covering approximately 109,000 vehicles.The subject vehicles use an electrically driven pump to provide hydraulic pressure to a conventional rack-and-pinion steering gear.A pump, the electric motor, and an electronic control unit (ECU) are housed in a single component BMW calls a Power Pack.The investigation focused on contaminant-induced failure of the ECU resulting in a loss of assist without warning.When assist is lost mechanical steering is retained however increased steering effort is required to keep the vehicle on an intended path.Some consumers reported that restarting the vehicle (cycling the ignition switch) would often reinstate the steering assist.Additionally, and by design, assist can also reinstate during the drive cycle in limited circumstances.The unexpected loss of assist, and/or possibly the reinstatement of assist while driving, may contribute to a loss of vehicle control in certain driving situations.During MY 2005 production BMW introduced a revised Power Pack design (the ECU incorporated a conformal coating of the circuit board) which resulted in a significant reduction in failures.ODI identified 20 reports describing crashes consistent with a loss of power assist event possibly caused by a failure of the Power Pack.Two reports alleged an injury however both were minor in nature and did not require emergency treatment (a subsequent doctor's visit occurred in one case).Ten of these reports described low speed crashes with minimal, or in most cases no property or vehicle damage (e.g., striking a movable barrier in a parking lot).Additionally 27 other reports alleged or indicated that a crash occurred due to a Power Pack failure however in reviewing these reports, ODI either 1) was unable to confirm that a crash actually occurred (8 reports), or 2) determined that the crash circumstances (e.g., adverse road/weather conditions) or cause (e.g., the crash was caused by steering linkage failure) were not attributable to a Power Pack failure (19 reports).Throughout the investigation BMW maintained that loss of assist in the subject vehicles did not constitute a safety related defect, noting that the subject vehicles are smaller, light weight vehicles that can be reasonably controlled when assist is lost.In May 2013 BMW launched a 13 year/150,000 mile extended warranty coverage utilizing the redesigned Power Pack as a replacement part.ODI continued its investigation.In July 2014 BMW provided ODI a status of the ongoing extended warranty program, and in May 2015 ODI requested an update of complaint data.Following a review of the provided data, ODI informed BMW of its assessment that loss of steering assist failures were not adequately resolved by an extended warranty program.On October 12, 2015 BMW notified NHTSA that it would conduct a safety recall (15V-660) on approximately 86,000 subject vehicles not previously remedied with the new design Power Pack through regular or extended warranty programs.The recall covers MY 2002-2005 MINI Cooper, MY 2002-2005 MINI Cooper S, and MY 2005 MINI Cooper/Cooper S convertibles manufactured through Feb 9, 2005.Vehicles produced after this date are not included si
Steering:hydraulic Power Assist System
The Office of Defects Investigation (ODI) originally opened the investigation of loss of power steering assist in model year (MY) 2004 and 2005 Mini Cooper as Preliminary Evaluation PE10-038.The investigation was upgraded to Engineering Analysis EA11-005 in May, 2011.During EA11-005 the scope was expanded to include MY 2002 and 2003 vehicles that use the same steering system.The subject vehicles now include MY 2002, the first year BMW sold MINI in the U.S., through mid-MY 2005 covering approximately 109,000 vehicles.The subject vehicles use an electrically driven pump to provide hydraulic pressure to a conventional rack-and-pinion steering gear.A pump, the electric motor, and an electronic control unit (ECU) are housed in a single component BMW calls a Power Pack.The investigation focused on contaminant-induced failure of the ECU resulting in a loss of assist without warning.When assist is lost mechanical steering is retained however increased steering effort is required to keep the vehicle on an intended path.Some consumers reported that restarting the vehicle (cycling the ignition switch) would often reinstate the steering assist.Additionally, and by design, assist can also reinstate during the drive cycle in limited circumstances.The unexpected loss of assist, and/or possibly the reinstatement of assist while driving, may contribute to a loss of vehicle control in certain driving situations.During MY 2005 production BMW introduced a revised Power Pack design (the ECU incorporated a conformal coating of the circuit board) which resulted in a significant reduction in failures.ODI identified 20 reports describing crashes consistent with a loss of power assist event possibly caused by a failure of the Power Pack.Two reports alleged an injury however both were minor in nature and did not require emergency treatment (a subsequent doctor's visit occurred in one case).Ten of these reports described low speed crashes with minimal, or in most cases no property or vehicle damage (e.g., striking a movable barrier in a parking lot).Additionally 27 other reports alleged or indicated that a crash occurred due to a Power Pack failure however in reviewing these reports, ODI either 1) was unable to confirm that a crash actually occurred (8 reports), or 2) determined that the crash circumstances (e.g., adverse road/weather conditions) or cause (e.g., the crash was caused by steering linkage failure) were not attributable to a Power Pack failure (19 reports).Throughout the investigation BMW maintained that loss of assist in the subject vehicles did not constitute a safety related defect, noting that the subject vehicles are smaller, light weight vehicles that can be reasonably controlled when assist is lost.In May 2013 BMW launched a 13 year/150,000 mile extended warranty coverage utilizing the redesigned Power Pack as a replacement part.ODI continued its investigation.In July 2014 BMW provided ODI a status of the ongoing extended warranty program, and in May 2015 ODI requested an update of complaint data.Following a review of the provided data, ODI informed BMW of its assessment that loss of steering assist failures were not adequately resolved by an extended warranty program.On October 12, 2015 BMW notified NHTSA that it would conduct a safety recall (15V-660) on approximately 86,000 subject vehicles not previously remedied with the new design Power Pack through regular or extended warranty programs.The recall covers MY 2002-2005 MINI Cooper, MY 2002-2005 MINI Cooper S, and MY 2005 MINI Cooper/Cooper S convertibles manufactured through Feb 9, 2005.Vehicles produced after this date are not included si
PE10038 · Loss Of Power Steering Assist
Opened Sep 24, 2010 · Closed May 10, 2011
Status: closed (inferred from source dates) · Steering; Steering:electric Power Assist System; Steering:hydraulic Power Assist System; Steering:hydraulic Power Assist:pump
ODI has received 339 complaints alleging an unexpected loss of power steering assist while driving the vehicle.When the power steering assist stops working, drivers experienced difficulty in steering and/or controlling the vehicle.According to BMW drivers may experience either a temporary or permanent loss of power steering assist.BMW further advised that a temporary loss of power steering assist may be due to a malfunctioning cooling fan or an under-voltage condition in the power steering system.A permanent loss of power steering assist may be due to an error in the internal electronics, and may also result in the continuous running of the power steering pump.The VOQ complaints allege 5 minor crashes and 3 fires.The crashes are described as hit the curb.The fires are described as melted wires. There were no property damage claims.ODI has received similar complaints for other model year Mini.Additional information is required to evaluate the frequency, consequence, and scope of this issue.Accordingly the investigation has been upgraded to an Engineering Analysis (see EA11-005).
Additional source detail variants (4)
Steering
ODI has received 339 complaints alleging an unexpected loss of power steering assist while driving the vehicle.When the power steering assist stops working, drivers experienced difficulty in steering and/or controlling the vehicle.According to BMW drivers may experience either a temporary or permanent loss of power steering assist.BMW further advised that a temporary loss of power steering assist may be due to a malfunctioning cooling fan or an under-voltage condition in the power steering system.A permanent loss of power steering assist may be due to an error in the internal electronics, and may also result in the continuous running of the power steering pump.The VOQ complaints allege 5 minor crashes and 3 fires.The crashes are described as hit the curb.The fires are described as melted wires. There were no property damage claims.ODI has received similar complaints for other model year Mini.Additional information is required to evaluate the frequency, consequence, and scope of this issue.Accordingly the investigation has been upgraded to an Engineering Analysis (see EA11-005).
Steering:electric Power Assist System
ODI has received 339 complaints alleging an unexpected loss of power steering assist while driving the vehicle.When the power steering assist stops working, drivers experienced difficulty in steering and/or controlling the vehicle.According to BMW drivers may experience either a temporary or permanent loss of power steering assist.BMW further advised that a temporary loss of power steering assist may be due to a malfunctioning cooling fan or an under-voltage condition in the power steering system.A permanent loss of power steering assist may be due to an error in the internal electronics, and may also result in the continuous running of the power steering pump.The VOQ complaints allege 5 minor crashes and 3 fires.The crashes are described as hit the curb.The fires are described as melted wires. There were no property damage claims.ODI has received similar complaints for other model year Mini.Additional information is required to evaluate the frequency, consequence, and scope of this issue.Accordingly the investigation has been upgraded to an Engineering Analysis (see EA11-005).
Steering:hydraulic Power Assist:pump
ODI has received 339 complaints alleging an unexpected loss of power steering assist while driving the vehicle.When the power steering assist stops working, drivers experienced difficulty in steering and/or controlling the vehicle.According to BMW drivers may experience either a temporary or permanent loss of power steering assist.BMW further advised that a temporary loss of power steering assist may be due to a malfunctioning cooling fan or an under-voltage condition in the power steering system.A permanent loss of power steering assist may be due to an error in the internal electronics, and may also result in the continuous running of the power steering pump.The VOQ complaints allege 5 minor crashes and 3 fires.The crashes are described as hit the curb.The fires are described as melted wires. There were no property damage claims.ODI has received similar complaints for other model year Mini.Additional information is required to evaluate the frequency, consequence, and scope of this issue.Accordingly the investigation has been upgraded to an Engineering Analysis (see EA11-005).
Steering:hydraulic Power Assist System
ODI has received 339 complaints alleging an unexpected loss of power steering assist while driving the vehicle.When the power steering assist stops working, drivers experienced difficulty in steering and/or controlling the vehicle.According to BMW drivers may experience either a temporary or permanent loss of power steering assist.BMW further advised that a temporary loss of power steering assist may be due to a malfunctioning cooling fan or an under-voltage condition in the power steering system.A permanent loss of power steering assist may be due to an error in the internal electronics, and may also result in the continuous running of the power steering pump.The VOQ complaints allege 5 minor crashes and 3 fires.The crashes are described as hit the curb.The fires are described as melted wires. There were no property damage claims.ODI has received similar complaints for other model year Mini.Additional information is required to evaluate the frequency, consequence, and scope of this issue.Accordingly the investigation has been upgraded to an Engineering Analysis (see EA11-005).