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2012 BMW 328I

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2012 BMW 328I do not stand out strongly from the model-year median of 98.

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How this year compares

Owner complaints by model year

Compare all 328I 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

79 reports with mileage · 51 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 55 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 26 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.

4 crash reports1 fire reports1 injury reports

What owners actually said

130 reports
Mileage unknown · Apr 14, 2025
Electrical SystemEngine And Engine Cooling

The contact owns a 2012 BMW 328I. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part needed for the recall repair was not available. The …

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The contact owns a 2012 BMW 328I. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part needed for the recall repair was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ODI #11654458

90,000 miles · Apr 14, 2025
Engine And Engine Cooling

The contact owns a 2012 BMW 328I. The contact stated that upon taking the vehicle to an independent mechanic for a diagnostic test, the mechanic discovered a defect with the VANOS bolts. The vehicle was then taken to another independent mechanic for a second opinion, and the contact was provided with the same information as the …

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The contact owns a 2012 BMW 328I. The contact stated that upon taking the vehicle to an independent mechanic for a diagnostic test, the mechanic discovered a defect with the VANOS bolts. The vehicle was then taken to another independent mechanic for a second opinion, and the contact was provided with the same information as the first mechanic. The contact was provided with information on NHTSA Campaign Number: 23V707000 (Engine and Engine Cooling); which the mechanic linked to the failure. The contact called two dealers and was informed that there were no recalls on the VIN. The contact was then referred to the manufacturer, who later referred the contact to the NHTSA Hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 90,000.

NHTSA ODI #11654445

99,263 miles · Mar 31, 2025
Engine

The contact owns a 2012 BMW 328I. The contact stated while driving at approximately 65 MPH, the vehicle stalled. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mi…

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The contact owns a 2012 BMW 328I. The contact stated while driving at approximately 65 MPH, the vehicle stalled. There was no warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 99,263.

NHTSA ODI #11651875

106,000 miles · Mar 20, 2025
Engine

The contact owns a 2012 BMW 328I. The contact stated that while driving at various speeds, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. In addition, the contact stated that there was white smoke coming from under the hood and from the exhaust tips. The check engine warning light was ill…

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The contact owns a 2012 BMW 328I. The contact stated that while driving at various speeds, the vehicle failed to accelerate as intended while the accelerator pedal was depressed. In addition, the contact stated that there was white smoke coming from under the hood and from the exhaust tips. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the coolant pump connector had failed and needed to be replaced. An appointment with the dealer was scheduled to inspect the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 106,000.

NHTSA ODI #11649559

114,000 miles · Jan 27, 2025
Electrical SystemEngine And Engine Cooling

The contact owns a 2012 BMW 328I. The contact stated that while driving 65 MPH, a message to pull over immediately was displayed, and the vehicle stalled. The contact was able to pull to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the timing chain had failed and ne…

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The contact owns a 2012 BMW 328I. The contact stated that while driving 65 MPH, a message to pull over immediately was displayed, and the vehicle stalled. The contact was able to pull to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that the timing chain had failed and needed to be replaced. The vehicle was not repaired. Additionally, the contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 114,000. VIN tool confirms parts not available.

NHTSA ODI #11638801

Mileage unknown · Jan 6, 2025
Engine And Engine Cooling

The contact owns a 2012 BMW 328I. The contact received notification of 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair.…

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The contact owns a 2012 BMW 328I. The contact received notification of 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ODI #11634272

Mileage unknown · Dec 14, 2024
Unknown Or OtherCrash

It’s sounds like it’s moving but it doesn’t.

NHTSA ODI #11630730

Mileage unknown · Dec 2, 2024
Electrical SystemEngine

The contact owns a 2012 BMW 328i. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The deal…

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The contact owns a 2012 BMW 328i. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ODI #11628286

Mileage unknown · Dec 2, 2024
Electrical SystemEngine

The contact owns a vehicle 2012 BMW 328i. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. …

Read full complaint

The contact owns a vehicle 2012 BMW 328i. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

NHTSA ODI #11628283

125,000 miles · Nov 19, 2024
Electrical SystemEngine And Engine Cooling

The contact owns a 2012 BMW 328I. The contact stated that while driving at an undisclosed speed, there was white smoke coming from the exhaust. There was no warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the water pump plug connector. The vehicle was not repaired. The ve…

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The contact owns a 2012 BMW 328I. The contact stated that while driving at an undisclosed speed, there was white smoke coming from the exhaust. There was no warning light illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the water pump plug connector. The vehicle was not repaired. The vehicle was then taken to the dealer, who confirmed the diagnosis. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); the VIN was included, but parts were not yet available. The manufacturer was notified of the failure but provided no assistance. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was 125,000.

NHTSA ODI #11626198

Official recalls

6

24V608000 · Electrical System:wiring:connectors/plugs/receptacles; Engine And Engine Cooling:cooling System:pump

Aug 13, 2024

BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.

Consequence & remedy

Consequence: An electrical short increases the risk of a fire.

Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.

Additional source detail variants (2)

Electrical System:wiring:connectors/plugs/receptacles

BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.

Consequence: An electrical short increases the risk of a fire.

Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.

Engine And Engine Cooling:cooling System:pump

BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.

Consequence: An electrical short increases the risk of a fire.

Remedy: Dealers will inspect and replace the water pump and plug connector as necessary, and install a protective shield, free of charge. Owner notification letters were mailed on March 28, 2025. Owners may contact BMW customer service at 1-800-525-7417.

24V513000 · Air Bags:frontal; Air Bags:frontal:driver Side:inflator Module

Jul 3, 2024

BMW of North America, LLC (BMW) is recalling certain 2006-2011 3 Series Sedan (324i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi), 2006-2012 3 Series Sportswagon (325xi, 328i, 328xi), and 2009-2011 3 Series Sedan (335d) vehicles. The original steering wheel may have been replaced with a sport or M-sport steering wheel equipped with an inflator that can explode during deployment.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

Remedy: Dealers will inspect and replace the driver's air bag module as necessary, free of charge. Owner notification letters were mailed August 30, 2024. Owners may contact BMW customer service at 1-800-525-7417.

Additional source detail variants (2)

Air Bags:frontal:driver Side:inflator Module

BMW of North America, LLC (BMW) is recalling certain 2006-2011 3 Series Sedan (324i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi), 2006-2012 3 Series Sportswagon (325xi, 328i, 328xi), and 2009-2011 3 Series Sedan (335d) vehicles. The original steering wheel may have been replaced with a sport or M-sport steering wheel equipped with an inflator that can explode during deployment.

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

Remedy: Dealers will inspect and replace the driver's air bag module as necessary, free of charge. Owner notification letters were mailed August 30, 2024. Owners may contact BMW customer service at 1-800-525-7417.

Air Bags:frontal

BMW of North America, LLC (BMW) is recalling certain 2006-2011 3 Series Sedan (324i, 325i, 325xi, 328i, 328xi, 330i, 330xi, 335i, 335xi), 2006-2012 3 Series Sportswagon (325xi, 328i, 328xi), and 2009-2011 3 Series Sedan (335d) vehicles. The original steering wheel may have been replaced with a sport or M-sport steering wheel equipped with an inflator that can explode during deployment.

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

Remedy: Dealers will inspect and replace the driver's air bag module as necessary, free of charge. Owner notification letters were mailed August 30, 2024. Owners may contact BMW customer service at 1-800-525-7417.

20V017000 · Air Bags:frontal:driver Side:inflator Module

Jan 15, 2020

BMW of North America, LLC (BMW) is recalling certain 2008-2013 128i and 135i Convertibles, 128i, 135i, and M Coupes, 2007-2010 X3 30si and X3 xDrive30i, 2013-2015 X1 sDrive28i, X1 xDrive28i and X1 xDrive35i, 2007-2013 328i, 328i xDrive, 335i, 335is, 335i xDrive and M3 Coupes, 2006-2011 328i, 328xi, 328i xDrive, 325i, 325xi, 330i, 330xi, 335i, 335xi, 335i xDrive and M3, 2009-2011 335D, 2006-2012 325xi, 328i, 328xi and 328i xDrive, 2010-2011 X6 ActiveHybrid, 2007-2013 328i, 335i, 335is, M3 Coupes, X5 30si, X5 xDrive30i, X5 xDrive35i, X5 48i, X5 xDrive48i, X5 xDrive50i and X5 M, 2009-2013 X5 xDrive35d and 2008-2014 X6 xDrive35i, X6 xDrive50i and X6M vehicles equipped with non-desiccated driver frontal air bag inflators containing phase stabilized ammonium nitrate (PSAN) that were used as interim remedy parts for previous Takata recalls. These inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, high temperatures, and high temperature cycling.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.

Remedy: BMW will notify owners, and dealers will replace the driver air bag. On X5 and X6 vehicles, only the inflator will be replaced. All repairs will be performed free of charge. The recall began March 11, 2020. Owners may contact BMW customer service at 1-800-525-7417.

15V520000 · Exterior Lighting

Aug 17, 2015

BMW North America, LLC (BMW) is recalling certain model year 2012-2015 320i, 320xi, 328i, 328xi, 335i, 335xi, and ActiveHybrid3 vehicles manufactured October 20, 2011, to June 22, 2015, 2014-2015 328xi Sports Wagon vehicles manufactured March 21, 2013, to March 17, 2015, 2014-2015 328d, 328xd vehicles manufactured June 28, 2013, to April 21, 2015, and 2014-2015 328xd Sports Wagon vehicles manufactured July 5, 2013, to April 21, 2015. The affected vehicles may have been programmed with new software that inadvertently makes the front side marker lights inoperative in conjunction with the parking lights or the headlights. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Consequence & remedy

Consequence: If the side marker lights do not illuminate, the vehicle may be less visible at night, increasing the risk of a crash.

Remedy: BMW will notify owners, and dealers will upload revised software to correct the issue, free of charge. The recall began on October 7, 2015. Owners may contact BMW customer service at 1-800-525-7417 or by email at CustomerRelations@bmwusa.com.

14V627000 · Service Brakes, Hydraulic:power Assist:vacuum; Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings

Oct 7, 2014

BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.

Consequence & remedy

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.

Additional source detail variants (2)

Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings

BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.

Service Brakes, Hydraulic:power Assist:vacuum

BMW of North America LLC (BMW) is recalling certain model year 2014 BMW 328i xDrive Sports Wagon, 2012-2014 BMW 320i Sedan, 328i Sedan, 320i xDrive Sedan, 328i xDrive Sedan, 2012-2013 BMW 528i Sedan, 528i xDrive Sedan, 2013-2014 BMW X1 sDrive28i, X1 xDrive28i Sports Activity Vehicle, 2013-2014 BMW X3 xDrive28i Sports Activity Vehicle, 2012-2014 BMW Z4 sDrive28i Roadster, and 2014 BMW 428i Coupe, and 428i xDrive Coupe. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail. Note: This recall is an expansion of recall 13V-454.

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will install a locking ring in the camshaft to retain the camshaft seal disk in the proper location, free of charge. The recall began on December 2, 2014. Owners may contact BMW customer service at 1-800-525-7417.

13V454000 · Service Brakes, Hydraulic:power Assist:vacuum; Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings

Sep 26, 2013

BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.

Consequence & remedy

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.

Additional source detail variants (2)

Service Brakes, Hydraulic:power Assist:vacuum:hoses, Lines/piping, And Fittings

BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.

Service Brakes, Hydraulic:power Assist:vacuum

BMW of North America LLC (BMW) is recalling certain model year 2012-2014 320i, 328i, 320i xDrive, and 328i xDrive sedans; model year 2014 328i xDrive Sports Wagons; model year 2012-2013 528i and 528i xDrive sedans, model year 2013-2014 X1 sDrive28i and X1 xDrive28i vehicles and model year 2012-2014 Z4 sDrive28i roadsters. Due to insufficient lubrication, the vacuum pump that supplies brake power assistance may fail.

Consequence: A failure of the brake vacuum pump results in a reduction in braking power that could increase the risk of a crash.

Remedy: BMW will notify owners, and dealers will modify the vehicles to prevent insufficient vacuum pump lubrication, free of charge. The safety recall began on January 31, 2014. Owners may contact BMW customer relations at 1-800-525-7417 or email BMW at CustomerRelations@bmwusa.com.

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

1

PE13030 · Loss Of Power Assist Braking

Opened Sep 6, 2013 · Closed Oct 25, 2013

Status: closed (inferred from source dates) · Service Brakes, Hydraulic:power Assist:vacuum

In a letter dated September 26, 2013, BMW Group submitted a safety recall notice to NHTSA identifying a defect condition in the vacuum pump oil supply that may result in loss of power assist braking in 76,191 model year (MY) 2012 through 2014 BMW 3-Series, 5-Series, X1 SAV, X3 SAV, and Z4 vehicles equipped with 4-cylinder engines (NHTSA Recall 13V-454).According to BMW, movement of the seal disk within the camshaft may result in blocking of the oil supply to the vacuum pump, resulting in improper pump operation and loss of power assist braking.On July 11, 2013, BMW initiated a change to the camshaft geometry that prevented the seal disk from blocking the oil port.BMW has not received any braking complaints related to loss of power assist after the design change was implemented in production.The owners of all affected vehicles will be contacted by mail and asked to take their vehicle to a BMW dealer who will install a locking ring into the camshaft to keep the seal disk in its proper location.BMW expects to begin dealer and owner notification in November 2013 and complete dealer and owner notification in December when the remedy is expected to be available.Based on the actions taken by BMW, this investigation is closed.