ENGINE TIMING CHAIN RATTLE. *TR
2010 Mini Cooper S
Owner reports · Recalls · Investigations
Similar to other model years
Owner complaints for the 2010 Mini Cooper S do not stand out strongly from 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
49 reports with mileage · 10 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.
- Engine. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine And Engine Cooling. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
59 reportsTIMING CHAIN RATTLE. *TR
ENGINE SEIZED WHILE DRIVING ON THE 6-LANE HIGHWAY DURING RUSH HOUR TRAFFIC. JUST A SUDDEN COMPLETE LOSS OF POWER, ALL VEHICLE OPERATION STOPPED. FORTUNATELY, I WAS ON THE OUTSIDE LANE, AND I WAS AT AN EXIT THAT WENT DOWN HILL, SO I COASTED DOWN THE OFF RAMP BEFORE IT ROLLED TO A COMPLETE STOP. SOME BYSTANDERS ASSISTED ME IN…
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ENGINE SEIZED WHILE DRIVING ON THE 6-LANE HIGHWAY DURING RUSH HOUR TRAFFIC. JUST A SUDDEN COMPLETE LOSS OF POWER, ALL VEHICLE OPERATION STOPPED. FORTUNATELY, I WAS ON THE OUTSIDE LANE, AND I WAS AT AN EXIT THAT WENT DOWN HILL, SO I COASTED DOWN THE OFF RAMP BEFORE IT ROLLED TO A COMPLETE STOP. SOME BYSTANDERS ASSISTED ME IN PUSHING THE VEHICLE OFF THE SIDE OF THE BUSY 4-LANE ROAD. TURNS OUT IT IS THE TIMING CHAIN PROBLEM WITH MANY MINI COOPERS, 2007 - 2012. THERE IS A FAULTY OR MISSING PART, THAT IF NOT ADDRESSED, RESULTS IN "CATASTROPHIC ENGINE FAILURE". MY VEHICLE HAD 50K MILES ON IT; I PURCHASED IT NEW, SO I HAVE ALL VEHICLE RECORDS, ALL RECOMMENDED MAINTENANCE PERFORMED; ALL RECALLS PERFORMED, AND MY RECORDS ARE 100% COMPLETE. THE REAL KICKER IS - MY SERVICE RECORDS CLEARLY SHOW THAT SEVERAL TIMES I REPORTED A "RATTLE" FROM THE ENGINE (WHILE UNDER WARRANTY) AS FAR BACK AS 2012. AND THE SERVICE RECORDS INDICATE THAT THE DEALERSHIP "COULD NOT DUPLICATE CUSTOMER COMPLAINT OF RATTLE". THE NOTORIOUS "RATTLE" IS THE FIRST SYMPTOM OF THIS ENGINE FLAW THAT CAN RESULT IN CATASTROPHIC ENGINE DAMAGE, AND IT WAS KNOWN BY THE AUTO INDUSTRY IN 2012. COST - $8K, COMPLETE ENGINE REPLACEMENT REQUIRED. DEALERSHIP AND BMW DENY ANY WRONG DOING, AND DENY ANY KNOWLEDGE OF THE "ENGINE" ISSUE. FOLLOWING THE INCIDENT, I SPENT A MONTH OF MY TIME TRYING TO FIGURE OUT WHAT HAPPENED, WHY, HAD IT TOWED TO THREE PLACES, LOTS OF PHONE CALLS, RESEARCH, ETC. LUCKILY NO ONE DIED. THIS WAS A VERY DANGEROUS SITUATION TO BE IN, AND THE PEOPLE THAT STOPPED TO HELP ME PUSH THE CAR WERE VERY BRAVE. I LOOKED PRETTY PATHETIC I AM SURE - LONE, PETITE FEMALE TRYING TO PUSH A CAR ON A VERY BUSY 4-LANE ROAD DURING RUSH HOUR, IN 90 DEGREE HEAT. LUCKY FOR BMW/MINI THAT NO ONE DIED. I GUESS THAT IS EXACTLY WHAT IT WILL TAKE TO FORCE THEM TO RECOGNIZE THIS PROBLEM. *TR
AT ABOUT 42000 MILES, I STARTED TO NOTICE A RATTLE COMING FROM THE ENGINE WHEN THE ENGINE WAS FIRST STARTED. THE RATTLE WAS MOST NOTICEABLE BETWEEN 2000 AND 3000 RPM. THIS RATTLE ALSO COINCIDED WITH THE WEATHER TURNING COLDER. THE RATTLE CONTINUED TO WORSEN OVER TIME, AN OIL LEAK DEVELOPED, AND THE CHECK ENGINE LIGHT EVENTUALLY …
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AT ABOUT 42000 MILES, I STARTED TO NOTICE A RATTLE COMING FROM THE ENGINE WHEN THE ENGINE WAS FIRST STARTED. THE RATTLE WAS MOST NOTICEABLE BETWEEN 2000 AND 3000 RPM. THIS RATTLE ALSO COINCIDED WITH THE WEATHER TURNING COLDER. THE RATTLE CONTINUED TO WORSEN OVER TIME, AN OIL LEAK DEVELOPED, AND THE CHECK ENGINE LIGHT EVENTUALLY CAME ON. AFTER SEARCHING THE INTERNET AND CALLING MY MINI DEALERSHIP, I DETERMINED THAT THE TIMING CHAIN TENSIONER WAS MOST LIKELY AT FAULT. I ORDERED THE PART AND REPLACED IT MYSELF. DURING THE PROCESS OF REPLACING THE TENSIONER, I FOUND THAT THE OLD TENSIONER WAS LOOSE IN ITS SOCKET. AFTER REPLACING THE PART, THE ENGINE RAN SMOOTHLY AND CONTINUES TO RUN SMOOTHLY. *TR
WE WERE DRIVING THE CAR AT 20 MPH AND THE CHECK ENGINE LIGHT CAME ON. WE PULLED OVER TO THE SIDE OF THE ROAD AND DID NOT NOTE ANY PROBLEMS. WE THEN DROVE DIRECTLY TO THE MINI DEALERSHIP NEARBY AND THEY SAID THE HEAD GASKET SEAL WAS BROKEN A LEAKING OIL. ALSO THEY SAID THE TIMING CHAIN AND BELT TENSIONER NEEDED TO BE REPLACED AS …
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WE WERE DRIVING THE CAR AT 20 MPH AND THE CHECK ENGINE LIGHT CAME ON. WE PULLED OVER TO THE SIDE OF THE ROAD AND DID NOT NOTE ANY PROBLEMS. WE THEN DROVE DIRECTLY TO THE MINI DEALERSHIP NEARBY AND THEY SAID THE HEAD GASKET SEAL WAS BROKEN A LEAKING OIL. ALSO THEY SAID THE TIMING CHAIN AND BELT TENSIONER NEEDED TO BE REPLACED AS THEY WERE LOOSE. NO REPAIRS WERE EVER PERFORMED ON THESE PARTS. IT WAS NOTED THAT THERE WAS BUILD UP IN THE OIL LINES TO THE TURBO CAUSING IT TO SEIZE UP AND NEEDED TO BE REPLACED. TOTAL COSTS WERE $3,000 FOR PARTS AND LABOR. *TR
TOOK MY 2010 MINI COOPER S TO A MINI DEALERSHIP IN ANN ARBOR MI, WHERE THEY HAD THE CAR FOR 8 DAYS AND FINALLY CAME BACK TO ME SAYING THAT ITS THE TIMING CHAIN THAT NEEDS REPLACING, WHICH IS A FIX WITH A TOTAL COST OF AROUND $1,500. I PREVIOUSLY HAD A 2007 MINI COOPER, WHICH ALSO HAD THE SAME ISSUE, WHERE IN THAT CASE THE TIMING…
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TOOK MY 2010 MINI COOPER S TO A MINI DEALERSHIP IN ANN ARBOR MI, WHERE THEY HAD THE CAR FOR 8 DAYS AND FINALLY CAME BACK TO ME SAYING THAT ITS THE TIMING CHAIN THAT NEEDS REPLACING, WHICH IS A FIX WITH A TOTAL COST OF AROUND $1,500. I PREVIOUSLY HAD A 2007 MINI COOPER, WHICH ALSO HAD THE SAME ISSUE, WHERE IN THAT CASE THE TIMING CHAIN HAD ACTUALLY BROKEN. THIS ISSUE SEEMS TO BE WIDESPREAD AND MINI NA NEEDS TO ISSUE A RECALL ON THIS PARTICULAR PART FOR THE MODEL YEARS THAT THIS DESIGN DEFECT HAS AFFECTED. PRIOR TO THIS ISSUE, I HAD ONLY OWNED THE VEHICLE FOR 6 WEEKS AND WAS PURCHASED FROM MOTOR CITY MINI, WHICH IS AN OFFICIAL MINI DEALER. THIS VEHICLE ALSO WENT THROUGH AN INSPECTION BEFORE BEING SOLD TO ME. *TR
ENGINE EXPERIENCE RAPID OIL LOSS WHICH COATED UNDERSIDE OF VEHICLE INCLUDING TIRES. WHEN THE BRAKES WERE APPLIED THE VEHICLE BECAME UNSTABLE BUT I WAS ABLE TO AVOID A CRASH. WHILE PULLING TO THE SIDE OF THE HIGHWAY THE OIL LIGHT CAME ON. THE VEHICLE WAS TOWED TO A MECHANIC. HE REPORTED THAT A FASTENER ON THE CAM CHAIN TENSI…
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ENGINE EXPERIENCE RAPID OIL LOSS WHICH COATED UNDERSIDE OF VEHICLE INCLUDING TIRES. WHEN THE BRAKES WERE APPLIED THE VEHICLE BECAME UNSTABLE BUT I WAS ABLE TO AVOID A CRASH. WHILE PULLING TO THE SIDE OF THE HIGHWAY THE OIL LIGHT CAME ON. THE VEHICLE WAS TOWED TO A MECHANIC. HE REPORTED THAT A FASTENER ON THE CAM CHAIN TENSIONER HAD BECOME LOOSE WHICH CAUSED THE LEAK. THAT PART HAD NEVER BEEN MODIFIED OR SERVICE. THERE WAS NO LEAK WHEN I BEGAN MY COMMUTE. THE PROBLEM OCCURRED IN ONLY A FEW MILES. SEARCHING ONLINE FORUMS INDICATES THAT THIS IS NOT AN ISOLATED INCIDENT. *TR
THE CAR HAS A RECALL FOR WATER PUMP, NEVER DONE UNTIL THE CAR ENGINE STOP. NOW THE ENGINE IS TOTALLY LOST. I THINK THE CAR HAS A PREVIOUS RECALL THE TIMING CHAIN TENSOR BUT NEVER WAS DONE. *TR
2010 MINI COOPER S. CONSUMER WRITES IN REGARDS TO ISSUES WITH TIMING CHAIN *TGW THE CONSUMER STATED THE ENGINE LIGHT ILLUMINATED ONE WEEK AFTER BEING SERVICED. THE FIRST NOTICEABLE PROBLEM STARTED WITH A LEAK. IT WAS REPAIRED BY REPLACING A SEAL. IT WAS THEN DISCOVERED THERE WAS A RECALL FOR THE WATER PUMP, WHICH WAS THEN REPL…
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2010 MINI COOPER S. CONSUMER WRITES IN REGARDS TO ISSUES WITH TIMING CHAIN *TGW THE CONSUMER STATED THE ENGINE LIGHT ILLUMINATED ONE WEEK AFTER BEING SERVICED. THE FIRST NOTICEABLE PROBLEM STARTED WITH A LEAK. IT WAS REPAIRED BY REPLACING A SEAL. IT WAS THEN DISCOVERED THERE WAS A RECALL FOR THE WATER PUMP, WHICH WAS THEN REPLACED. WHEN THE VEHICLE WAS TESTED, THE COMPUTER NOTED MISFIRE FAULTS AND IT WAS AT THAT POINT, THE TIMING CHAIN WAS REPLACED AND ALL ITS RELATED PARTS. THE TECHNICIAN NOTED CARBON BUILD-UP. THE CONSUMER STATED THE FAN STAYS ON MUCH LONGER THAN NORMAL. *JB
ON JULY 3, 2012, I WAS BURNED ON MY CALF BY THE EXHAUST PIPE LOCATED IN THE MIDDLE BACK OF THE MINI COOPER S. I HAVE A LARGE HALF MOON SCAR REMAINING. MY DAUGHTER WAS ALSO BURNED LAST YEAR BY THE SAME VEHICLE 2 PLACES ON HER CALF. I HAVE RESEARCHED AND SEE A REPORT ON THE R56 MODEL BUT WAS ONLY PERTAINING TO 2007-2008. IF BM…
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ON JULY 3, 2012, I WAS BURNED ON MY CALF BY THE EXHAUST PIPE LOCATED IN THE MIDDLE BACK OF THE MINI COOPER S. I HAVE A LARGE HALF MOON SCAR REMAINING. MY DAUGHTER WAS ALSO BURNED LAST YEAR BY THE SAME VEHICLE 2 PLACES ON HER CALF. I HAVE RESEARCHED AND SEE A REPORT ON THE R56 MODEL BUT WAS ONLY PERTAINING TO 2007-2008. IF BMW DID ANYTHING TO RESOLVE (SHORTENING THE PIPE), IT DIDN'T WORK SINCE I WAS BURNED LIKE OTHERS BY A 2010 MODEL. I OWNED A 2004 FOR 7 YEARS AND NEVER HAD AN ISSUE. NOT THAT THE POSSIBILITY WASN'T THERE, BUT IT NEVER HAPPENED. I CHECKED TO SEE IF LASER COULD REMOVE THE SCAR, BUT WAS TOLD IT WOULD NOT. BMW MUST REDESIGN AND/OR RECALL IN ORDER TO PROVIDE BETTER SAFETY. I EXPECT AND KNOW THE RISK OF BURN WITH A MOTORCYCLE, BUT NEVER EXPECT TO GET BURNED BY A CAR (MINI). *TR
Official recalls
423V337000 · Electrical System
May 11, 2023
BMW of North America, LLC (BMW) is recalling certain 2008-2014 MINI Clubman Cooper, Clubman Cooper S, Clubman John Cooper Works, and 2007-2013 MINI Hardtop 2-Door Cooper, Cooper S, and John Cooper Works vehicles sold, or ever registered, in Alaska, Colorado, Connecticut, Delaware, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nebraska, New Hampshire, New Jersey, New York, North Dakota, Ohio, Pennsylvania, Rhode Island, South Dakota, Utah, Vermont, Virginia, West Virginia, Washington D.C., and Wisconsin. The electronic control module in the driver's side footwell area may short-circuit, due to corrosion from water and road salt.
Consequence & remedy
Consequence: An electrical short-circuit can increase the risk of a fire.
Remedy: Dealers will inspect the sunroof drains, interior footwell area, and FRM and, depending upon the results of the inspection, certain components will be replaced. Owner notification letters were mailed May 13, 2024. Owners may contact BMW customer service at 1-866-825-1525.
18V248000 · Engine And Engine Cooling:engine; Engine And Engine Cooling:engine:gasoline:turbo/supercharger
Apr 18, 2018
BMW of North America, LLC (BMW) is recalling certain 2011-2012 BMW 550i, 550i xDrive, 550i Gran Turismo, 550i Gran Turismo xDrive, 750i, 750Li, 750i xDrive, 750Li xDrive, 760Li, X5 xDrive50i, X5 M, X6 xDrive50i, X6 M, ActiveHybrid7, MINI Cooper S Convertible, John Cooper Works (JCW) Convertible, Cooper S Countryman, Cooper S Countryman ALL4, Cooper S, JCW, Cooper S Clubman, JCW Clubman, Cooper S Roadster, JCW Roadster, Cooper S Coupe, JCW Coupe and Rolls-Royce Ghost, 2011 BMW X6 Hybrid and 2012 BMW 650i Coupe, 650i xDrive Coupe, 650i Convertible and 650i xDrive Convertible vehicles. The electric auxiliary water pump may fail and cause the circuit board to overheat.
Consequence & remedy
Consequence: If the circuit board were to overheat, it can increase the risk of a fire.
Remedy: BMW will notify owners, and dealers will replace the electric auxiliary water pump, free of charge. Depending on the model, there are currently limited parts available, however not all parts are available at this time. Owners will be notified of the recall beginning June 11, 2018, and will receive a second notification when remedy parts become available. Owners may contact BMW customer service at BMW 1-800-525-7417, MINI at 1-866-825-1525, or Rolls-Royce at 1-877-877-3735. Note: BMW recommends that owners park their vehicle outdoors until the recall remedy has been performed.
Additional source detail variants (2)
Engine And Engine Cooling:engine:gasoline:turbo/supercharger
BMW of North America, LLC (BMW) is recalling certain 2011-2012 BMW 550i, 550i xDrive, 550i Gran Turismo, 550i Gran Turismo xDrive, 750i, 750Li, 750i xDrive, 750Li xDrive, 760Li, X5 xDrive50i, X5 M, X6 xDrive50i, X6 M, ActiveHybrid7, MINI Cooper S Convertible, John Cooper Works (JCW) Convertible, Cooper S Countryman, Cooper S Countryman ALL4, Cooper S, JCW, Cooper S Clubman, JCW Clubman, Cooper S Roadster, JCW Roadster, Cooper S Coupe, JCW Coupe and Rolls-Royce Ghost, 2011 BMW X6 Hybrid and 2012 BMW 650i Coupe, 650i xDrive Coupe, 650i Convertible and 650i xDrive Convertible vehicles. The electric auxiliary water pump may fail and cause the circuit board to overheat.
Consequence: If the circuit board were to overheat, it can increase the risk of a fire.
Remedy: BMW will notify owners, and dealers will replace the electric auxiliary water pump, free of charge. Depending on the model, there are currently limited parts available, however not all parts are available at this time. Owners will be notified of the recall beginning June 11, 2018, and will receive a second notification when remedy parts become available. Owners may contact BMW customer service at BMW 1-800-525-7417, MINI at 1-866-825-1525, or Rolls-Royce at 1-877-877-3735. Note: BMW recommends that owners park their vehicle outdoors until the recall remedy has been performed.
Engine And Engine Cooling:engine
BMW of North America, LLC (BMW) is recalling certain 2011-2012 BMW 550i, 550i xDrive, 550i Gran Turismo, 550i Gran Turismo xDrive, 750i, 750Li, 750i xDrive, 750Li xDrive, 760Li, X5 xDrive50i, X5 M, X6 xDrive50i, X6 M, ActiveHybrid7, MINI Cooper S Convertible, John Cooper Works (JCW) Convertible, Cooper S Countryman, Cooper S Countryman ALL4, Cooper S, JCW, Cooper S Clubman, JCW Clubman, Cooper S Roadster, JCW Roadster, Cooper S Coupe, JCW Coupe and Rolls-Royce Ghost, 2011 BMW X6 Hybrid and 2012 BMW 650i Coupe, 650i xDrive Coupe, 650i Convertible and 650i xDrive Convertible vehicles. The electric auxiliary water pump may fail and cause the circuit board to overheat.
Consequence: If the circuit board were to overheat, it can increase the risk of a fire.
Remedy: BMW will notify owners, and dealers will replace the electric auxiliary water pump, free of charge. Depending on the model, there are currently limited parts available, however not all parts are available at this time. Owners will be notified of the recall beginning June 11, 2018, and will receive a second notification when remedy parts become available. Owners may contact BMW customer service at BMW 1-800-525-7417, MINI at 1-866-825-1525, or Rolls-Royce at 1-877-877-3735. Note: BMW recommends that owners park their vehicle outdoors until the recall remedy has been performed.
12V008000 · Engine And Engine Cooling:engine:gasoline:turbo/supercharger
Jan 11, 2012
BMW IS RECALLING CERTAIN MODEL YEAR 2007-2011 MINI COOPER S, 2008-2011 MINI COOPER S CLUBMAN, 2009-2011 MINI COOPER S CONVERTIBLE, 2009-2011 MINI COOPER JCW, 2009-2011 MINI COOPER JCW CLUBMAN, 2009-2011 COOPER JCW CONVERTIBLE, AND 2011 COOPER S COUNTRYMAN PASSENGER CARS MANUFACTURED FROM NOVEMBER 14, 2006, THROUGH JANUARY 18, 2011. THE ELECTRIC AUXILIARY WATER PUMP THAT COOLS THE TURBOCHARGER HAS AN ELECTRONIC CIRCUIT BOARD THAT CAN MALFUNCTION AND OVERHEAT.
Consequence & remedy
Consequence: THE CIRCUIT BOARD MAY SMOLDER WHICH COULD RESULT IN A VEHICLE FIRE.
Remedy: BMW WILL NOTIFY OWNERS, AND DEALERS WILL REPLACE THE WATER PUMP FREE OF CHARGE. THE SAFETY RECALL BEGANDURING FEBRUARY 2012. OWNERS MAY CONTACT BMW AT 1-866-275-6464.
09V474000 · Equipment:other:labels
Dec 15, 2009
BMW IS RECALLING CERTAIN MODEL YEAR 2010 MINI COOPER AND COOPER S VEHICLES FOR FAILING COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 110, "TIRE SELECTION AND RIMS." THE AFFECTED VEHICLES WERE EQUIPPED WITH 17 INCH WHEELS, BUT THEIR LABEL STATES THAT THEY WERE EQUIPPED WITH 16 INCH WHEELS. ALSO THE TIRE PRESSURE STATED ON THE LABEL FOR THE COOPER S IS INCORRECT.
Consequence & remedy
Consequence: ERRONEOUS TIRE INFORMATION COULD LEAD TO IMPROPER TIRE FITMENT AND INFLATION WHICH COULD AFFECT THE DURABILITY OF THE TIRE AND THE STABILITY OF THE VEHICLE, INCREASING THE RISK OF A CRASH.
Remedy: DEALERS WILL MAIL TO CONSUMERS THE CORRECTED LABEL OR THE CUSTOMER WILL HAVE THE OPTION FOR DEALERS TO INSTALL THE LABEL FREE OF CHARGE. THE RECALL BEGAN ON MARCH 4, 2010. OWNERS MAY CONTACT BMW AT 1-800-831-1117.
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
1PE11036 · Engine Compartment Fire
Opened Oct 11, 2011 · Closed Jun 11, 2012
Status: closed (inferred from source dates) · Engine And Engine Cooling
In a January 10, 2012 letter to NHTSA, BMW of North America, LLC. (BMW) submitted a Defect Information Report (DIR) identifying a defect in the electric auxiliary water pump in approximately 88,911 model year (MY) 2007-2011 Mini Cooper vehicles manufactured from November 14, 2006 through January 18, 2011 (Recall 12V-008).According to BMW, the auxiliary water pump on vehicles equipped with 4-cylinder turbocharged engines may overheat.Electro-migration can cause the pump electronic circuit board to overheat resulting in smoldering of the water pump. If smoldering occurs, it may lead to an engine compartment or vehicle fire.The pump supplier, Pierburg Pump Technology GmbH, redesigned the pump to address factors that may contribute to circuit board overheating.The redesigned pumps were completely implemented in production vehicles by January 2011.Recall 12V-008 was the third recall initiated by BMW to address electric auxiliary water pump fires in vehicles equipped with Pierburg pumps.In two October 20, 2011 letters to NHTSA, BMW submitted DIRs for similar auxiliary water pump defect conditions in approximately 32,084 MY 2008-2011 BMW 5-Series, 7-Series, X5 and X6 models equipped with 8- and 12-cylinder engines and manufactured from May 2008 through December 2010 (Recall 11V-521); and for approximately 589 MY 2010 Rolls-Royce Ghost vehicles manufactured from September 2009 through September 2010 (Recall 11V-522).In three separate April 5, 2012 letters to NHTSA, BMW submitted amendments to Recalls 11V-521, 11V-522 and 12V-008.The amendments all described a common defect condition related to a manufacturing process deviation in a certain production range of the redesigned Pierburg water pumps that could result in cracks in the pump housing, which may allow coolant to enter and contact the pump?s circuit board.BMW indicated that further analysis identified a specific machine process error at the sub-supplier that manufactures the water pump housing.Pump housing cracks may cause the circuit board to overheat and lead to smoldering of the water pump.Recall 12V-008 was, thus, amended to include approximately 1,457 MY 2011 Mini Cooper vehicles manufactured from March 31, 2011 through April 22, 2011, when pumps manufactured with the suspect manufacturing process may have been used in vehicle assembly.The amendment to Recall 11V-521 was assigned a new recall number, Recall 12V-161, and covered approximately 2,846 MY 2011-2012 BMW 5-Series, 6-Series, 7-Series, X5, and X6 vehicles manufactured from April 1, 2011 through August 1, 2011.The amendment to Recall 11V-522 was assigned a new recall number, Recall 12V-166, and covered approximately 69 MY 2011 Rolls-Royce Ghost vehicles manufactured from April 7, 2011 through June 2, 2011.The Office of Defects Investigation (ODI) analyzed complaint data provided by BMW as well as complaints submitted to ODI from consumers. In total, there were 30 unique Mini Cooper reports indicating engine fire.In addition, BMW provided warranty data showing 493 claims for replacement of the subject component on Mini Cooper vehicles.Owners of the recalled vehicles are notified to take their vehicle to a BMW dealer, who will replace the auxiliary water pump to prevent any incidents related to this issue.This preliminary evaluation is closed.The ODI reports cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers (ODI Nos.):10286597, 10286663, 10289793, 10310677, 10314796, 10342365, 10394808, 10394192, 10403982, 10418325, 10422646, 10429003.
Additional source detail variants (3)
Engine And Engine Cooling
In a January 10, 2012 letter to NHTSA, BMW of North America, LLC. (BMW) submitted a Defect Information Report (DIR) identifying a defect in the electric auxiliary water pump in approximately 88,911 model year (MY) 2007-2011 Mini Cooper vehicles manufactured from November 14, 2006 through January 18, 2011 (Recall 12V-008).According to BMW, the auxiliary water pump on vehicles equipped with 4-cylinder turbocharged engines may overheat.Electro-migration can cause the pump electronic circuit board to overheat resulting in smoldering of the water pump. If smoldering occurs, it may lead to an engine compartment or vehicle fire.The pump supplier, Pierburg Pump Technology GmbH, redesigned the pump to address factors that may contribute to circuit board overheating.The redesigned pumps were completely implemented in production vehicles by January 2011.Recall 12V-008 was the third recall initiated by BMW to address electric auxiliary water pump fires in vehicles equipped with Pierburg pumps.In two October 20, 2011 letters to NHTSA, BMW submitted DIRs for similar auxiliary water pump defect conditions in approximately 32,084 MY 2008-2011 BMW 5-Series, 7-Series, X5 and X6 models equipped with 8- and 12-cylinder engines and manufactured from May 2008 through December 2010 (Recall 11V-521); and for approximately 589 MY 2010 Rolls-Royce Ghost vehicles manufactured from September 2009 through September 2010 (Recall 11V-522).In three separate April 5, 2012 letters to NHTSA, BMW submitted amendments to Recalls 11V-521, 11V-522 and 12V-008.The amendments all described a common defect condition related to a manufacturing process deviation in a certain production range of the redesigned Pierburg water pumps that could result in cracks in the pump housing, which may allow coolant to enter and contact the pump?s circuit board.BMW indicated that further analysis identified a specific machine process error at the sub-supplier that manufactures the water pump housing.Pump housing cracks may cause the circuit board to overheat and lead to smoldering of the water pump.Recall 12V-008 was, thus, amended to include approximately 1,457 MY 2011 Mini Cooper vehicles manufactured from March 31, 2011 through April 22, 2011, when pumps manufactured with the suspect manufacturing process may have been used in vehicle assembly.The amendment to Recall 11V-521 was assigned a new recall number, Recall 12V-161, and covered approximately 2,846 MY 2011-2012 BMW 5-Series, 6-Series, 7-Series, X5, and X6 vehicles manufactured from April 1, 2011 through August 1, 2011.The amendment to Recall 11V-522 was assigned a new recall number, Recall 12V-166, and covered approximately 69 MY 2011 Rolls-Royce Ghost vehicles manufactured from April 7, 2011 through June 2, 2011.The Office of Defects Investigation (ODI) analyzed complaint data provided by BMW as well as complaints submitted to ODI from consumers. In total, there were 30 unique Mini Cooper reports indicating engine fire.In addition, BMW provided warranty data showing 493 claims for replacement of the subject component on Mini Cooper vehicles.Owners of the recalled vehicles are notified to take their vehicle to a BMW dealer, who will replace the auxiliary water pump to prevent any incidents related to this issue.This preliminary evaluation is closed.The ODI reports cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers (ODI Nos.):10286597, 10286663, 10289793, 10310677, 10314796, 10342365, 10394808, 10394192, 10403982, 10418325, 10422646, 10429003.
Engine And Engine Cooling
In a January 10, 2012 letter to NHTSA, BMW of North America, LLC. (BMW) submitted a Defect Information Report (DIR) identifying a defect in the electric auxiliary water pump in approximately 88,911 model year (MY) 2007-2011 Mini Cooper vehicles manufactured from November 14, 2006 through January 18, 2011 (Recall 12V-008).According to BMW, the auxiliary water pump on vehicles equipped with 4-cylinder turbocharged engines may overheat.Electro-migration can cause the pump electronic circuit board to overheat resulting in smoldering of the water pump. If smoldering occurs, it may lead to an engine compartment or vehicle fire.The pump supplier, Pierburg Pump Technology GmbH, redesigned the pump to address factors that may contribute to circuit board overheating.The redesigned pumps were completely implemented in production vehicles by January 2011.Recall 12V-008 was the third recall initiated by BMW to address electric auxiliary water pump fires in vehicles equipped with Pierburg pumps.In two October 20, 2011 letters to NHTSA, BMW submitted DIRs for similar auxiliary water pump defect conditions in approximately 32,084 MY 2008-2011 BMW 5-Series, 7-Series, X5 and X6 models equipped with 8- and 12-cylinder engines and manufactured from May 2008 through December 2010 (Recall 11V-521); and for approximately 589 MY 2010 Rolls-Royce Ghost vehicles manufactured from September 2009 through September 2010 (Recall 11V-522).In three separate April 5, 2012 letters to NHTSA, BMW submitted amendments to Recalls 11V-521, 11V-522 and 12V-008.The amendments all described a common defect condition related to a manufacturing process deviation in a certain production range of the redesigned Pierburg water pumps that could result in cracks in the pump housing, which may allow coolant to enter and contact the pump?s circuit board.BMW indicated that further analysis identified a specific machine process error at the sub-supplier that manufactures the water pump housing.Pump housing cracks may cause the circuit board to overheat and lead to smoldering of the water pump.Recall 12V-008 was, thus, amended to include approximately 1,457 MY 2011 Mini Cooper vehicles manufactured from March 31, 2011 through April 22, 2011, when pumps manufactured with the suspect manufacturing process may have been used in vehicle assembly.The amendment to Recall 11V-521 was assigned a new recall number, Recall 12V-161, and covered approximately 2,846 MY 2011-2012 BMW 5-Series, 6-Series, 7-Series, X5, and X6 vehicles manufactured from April 1, 2011 through August 1, 2011.The amendment to Recall 11V-522 was assigned a new recall number, Recall 12V-166, and covered approximately 69 MY 2011 Rolls-Royce Ghost vehicles manufactured from April 7, 2011 through June 2, 2011.The Office of Defects Investigation (ODI) analyzed complaint data provided by BMW as well as complaints submitted to ODI from consumers. In total, there were 30 unique Mini Cooper reports indicating engine fire.In addition, BMW provided warranty data showing 493 claims for replacement of the subject component on Mini Cooper vehicles.Owners of the recalled vehicles are notified to take their vehicle to a BMW dealer, who will replace the auxiliary water pump to prevent any incidents related to this issue.This preliminary evaluation is closed.The ODI reports cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers (ODI Nos.):10286597, 10286663, 10289793, 10310677, 10314796, 10342365, 10394808, 10394192, 10403982, 10418325, 10422646, 10429003.
Engine And Engine Cooling
In a January 10, 2012 letter to NHTSA, BMW of North America, LLC. (BMW) submitted a Defect Information Report (DIR) identifying a defect in the electric auxiliary water pump in approximately 88,911 model year (MY) 2007-2011 Mini Cooper vehicles manufactured from November 14, 2006 through January 18, 2011 (Recall 12V-008).According to BMW, the auxiliary water pump on vehicles equipped with 4-cylinder turbocharged engines may overheat.Electro-migration can cause the pump electronic circuit board to overheat resulting in smoldering of the water pump. If smoldering occurs, it may lead to an engine compartment or vehicle fire.The pump supplier, Pierburg Pump Technology GmbH, redesigned the pump to address factors that may contribute to circuit board overheating.The redesigned pumps were completely implemented in production vehicles by January 2011.Recall 12V-008 was the third recall initiated by BMW to address electric auxiliary water pump fires in vehicles equipped with Pierburg pumps.In two October 20, 2011 letters to NHTSA, BMW submitted DIRs for similar auxiliary water pump defect conditions in approximately 32,084 MY 2008-2011 BMW 5-Series, 7-Series, X5 and X6 models equipped with 8- and 12-cylinder engines and manufactured from May 2008 through December 2010 (Recall 11V-521); and for approximately 589 MY 2010 Rolls-Royce Ghost vehicles manufactured from September 2009 through September 2010 (Recall 11V-522).In three separate April 5, 2012 letters to NHTSA, BMW submitted amendments to Recalls 11V-521, 11V-522 and 12V-008.The amendments all described a common defect condition related to a manufacturing process deviation in a certain production range of the redesigned Pierburg water pumps that could result in cracks in the pump housing, which may allow coolant to enter and contact the pump?s circuit board.BMW indicated that further analysis identified a specific machine process error at the sub-supplier that manufactures the water pump housing.Pump housing cracks may cause the circuit board to overheat and lead to smoldering of the water pump.Recall 12V-008 was, thus, amended to include approximately 1,457 MY 2011 Mini Cooper vehicles manufactured from March 31, 2011 through April 22, 2011, when pumps manufactured with the suspect manufacturing process may have been used in vehicle assembly.The amendment to Recall 11V-521 was assigned a new recall number, Recall 12V-161, and covered approximately 2,846 MY 2011-2012 BMW 5-Series, 6-Series, 7-Series, X5, and X6 vehicles manufactured from April 1, 2011 through August 1, 2011.The amendment to Recall 11V-522 was assigned a new recall number, Recall 12V-166, and covered approximately 69 MY 2011 Rolls-Royce Ghost vehicles manufactured from April 7, 2011 through June 2, 2011.The Office of Defects Investigation (ODI) analyzed complaint data provided by BMW as well as complaints submitted to ODI from consumers. In total, there were 30 unique Mini Cooper reports indicating engine fire.In addition, BMW provided warranty data showing 493 claims for replacement of the subject component on Mini Cooper vehicles.Owners of the recalled vehicles are notified to take their vehicle to a BMW dealer, who will replace the auxiliary water pump to prevent any incidents related to this issue.This preliminary evaluation is closed.The ODI reports cited above can be viewed at www-odi.nhtsa.dot.gov/owners/SearchNHTSAID under the following identification numbers (ODI Nos.):10286597, 10286663, 10289793, 10310677, 10314796, 10342365, 10394808, 10394192, 10403982, 10418325, 10422646, 10429003.
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