NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
36 reportsClear category filter141,000 miles · Aug 26, 2026
Electrical SystemEngine And Engine CoolingFire
The contact owns a 2015 BMW 528i. The contact stated that while idling, there was smoke emerging from under the hood, and the contact discovered that the electrical connection for the water pump caught fire. No warning light illuminated. The contact extinguished the fire using a fire extinguisher. No injury was reported, and no …
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The contact owns a 2015 BMW 528i. The contact stated that while idling, there was smoke emerging from under the hood, and the contact discovered that the electrical connection for the water pump caught fire. No warning light illuminated. The contact extinguished the fire using a fire extinguisher. No injury was reported, and no police report was filed. The vehicle was towed to the dealer, where it was diagnosed and determined that the water pump and other damaged components needed replacement. The contact associated the failure with NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System). The dealer submitted a claim to the manufacturer, but the manufacturer denied coverage because the water pump was previously replaced. The vehicle was not repaired. The contact had not directly contacted the manufacturer. The failure mileage was approximately 141,000.
NHTSA ODI #11759782
Mileage unknown · Jun 23, 2026
Electrical SystemEngineStructureFire
the vehicle was driven for approximately 30 minutes, operating with zero dashboard warnings or performance indicators. The vehicle was then parked on my property and turned off completely. Approximately two hours and thirty minutes later, the vehicle spontaneously ignited while stationary and unoccupied. The local fire departmen…
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the vehicle was driven for approximately 30 minutes, operating with zero dashboard warnings or performance indicators. The vehicle was then parked on my property and turned off completely. Approximately two hours and thirty minutes later, the vehicle spontaneously ignited while stationary and unoccupied. The local fire department responded and successfully extinguished the blaze. Both physical observations and my home security camera footage confirm that the point of origin was the front right passenger side of the engine compartment. This exact location houses the factory electric water pump and its electrical plug connector, directly matching the failure mechanism detailed in NHTSA Campaign 24V608000, wherein fluid intrusion causes a severe, persistent electrical short circuit capable of igniting a fire hours after the vehicle is parked. The car is completely totaled because of this.
NHTSA ODI #11746090
120,000 miles · Feb 6, 2026
Electrical SystemEngine And Engine CoolingFire
The contact owns a 2015 BMW 528i. The contact stated that while his vehicle was parked, the coolant pump connector caught on fire, which was connected to a after market Coolant pump. The failure experienced was a localized electrical fire that originated at the coolant pump connector and aftermarket coolant pump while the vehicl…
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The contact owns a 2015 BMW 528i. The contact stated that while his vehicle was parked, the coolant pump connector caught on fire, which was connected to a after market Coolant pump. The failure experienced was a localized electrical fire that originated at the coolant pump connector and aftermarket coolant pump while the vehicle was parked. The contact referenced NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM) but was told by the dealer they could not repair the recall due to the vehicle having an aftermarket coolant pump. The contact stated he originally replaced the coolant pump with an aftermarket one due to a failure, as advised in the recall notice. The vehicle was occupied during the failure. There was grey smoke coming from the engine and inside the vehicle, with flames that were coming from the hood and under the engine. The fire originated specifically within the coolant pump assembly and its associated electrical connector, with the thermal damage concentrated in that area before spreading. The fire department was able to extinguish the fire. The vehicle was towed to the dealer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,000.
NHTSA ODI #11716235
174,000 miles · Oct 17, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. The contact previously received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical Systems). The vehicle was taken to the dealer, where it was only inspected for the plug connector, and a protective shield was installed. The contact stated that the vehicle wa…
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The contact owns a 2015 BMW 528I. The contact previously received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical Systems). The vehicle was taken to the dealer, where it was only inspected for the plug connector, and a protective shield was installed. The contact stated that the vehicle was not inspected for the water pump as part of the recall. The contact stated that while driving at an undisclosed speed, the engine overheated, with several unknown messages displayed. The vehicle was taken back to the dealer, where it was diagnosed and determined that the water pump had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for additional assistance. The approximate failure mileage was 174,000.
NHTSA ODI #11694178
80,000 miles · Aug 28, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. 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 contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact st…
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The contact owns a 2015 BMW 528I. 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 contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that after driving approximately 2 hours or more, there was smoke coming from underneath the hood of the vehicle and entering the cabin of the vehicle. The contact would pull over to a safe location and park for approximately an hour before continuing to drive. The failure was persistent and recurred after driving for approximately 2 hours or more. The check engine warning light was illuminated. The vehicle was taken to a certified mechanic, who diagnosed a failure with the water pump. The mechanic replaced the ignition coils twice. The contact stated that one coil was replaced the first time, and the entire four ignition coils were replaced the second time however, the failure persisted. The vehicle was taken to the dealer and the dealer related the failure to the recall; however, the part was not yet available. The manufacturer was notified of the failure and confirmed that parts were not yet available. The failure mileage was approximately 80,000.
NHTSA ODI #11683691
Mileage unknown · Jul 23, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. 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 2015 BMW 528I. 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. Parts distribution disconnect.
NHTSA ODI #11675613
Mileage unknown · Jul 11, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. 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. An unknown local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of…
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The contact owns a 2015 BMW 528I. 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. An unknown local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
NHTSA ODI #11672662
74,860 miles · Jun 6, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. The contact stated that upon starting the vehicle, the engine warning light illuminated. The contact stated that the vehicle was taken to an independent mechanic who determined that the vehicle had experienced coolant failure. The vehicle was repaired. The contact received notification of NHTSA …
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The contact owns a 2015 BMW 528I. The contact stated that upon starting the vehicle, the engine warning light illuminated. The contact stated that the vehicle was taken to an independent mechanic who determined that the vehicle had experienced coolant failure. The vehicle was repaired. 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 issue. The failure mileage was approximately 74,860. VIN tool confirms parts not available.
NHTSA ODI #11665319
Mileage unknown · Apr 25, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. 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 contact stated that while her husband was driving at various speeds, the vehicle jerked, and there was coolant leak…
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The contact owns a 2015 BMW 528I. 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 contact stated that while her husband was driving at various speeds, the vehicle jerked, and there was coolant leaking from the vehicle. There was no warning light illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was unknown. VIN tool confirms parts not available.
NHTSA ODI #11656819
Mileage unknown · Apr 23, 2025
Electrical SystemEngine And Engine Cooling
The contact owns a 2015 BMW 528I. 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 contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufactur…
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The contact owns a 2015 BMW 528I. 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 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 #11656384
NHTSA investigations
1EA21002 · Desiccated Air Bag Inflator Rupture
Opened Sep 17, 2021 · No close date supplied
Status: open (inferred from source dates) · Air Bags:frontal:driver Side:inflator Module; Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Additional source detail variants (2)
Air Bags:frontal:driver Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
Air Bags:frontal:passenger Side:inflator Module
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deployment, potentially causing serious or even fatal injury to vehicle occupants. See 2016 Blomquist Report at www.nhtsa.gov/sites/nhtsa.gov/files/documents/expert_report-hrblomquist.pdf.Consequently, all frontal inflators using propellant 2004 that do not contain a "desiccant" (a substance that traps and holds moisture) in US vehicles are under recall. These "non-desiccated" inflators either have been or are required to be replaced.In some cases, the remedy part for these recalled inflators was, or will be, an inflator using either propellant 2004 or 2004L that does contain a desiccant. None of these "desiccated" remedy parts (which were installed in older model year vehicles) are currently under recall for a degradation concern. Certain subsets of desiccated PSAN inflators using propellant 2004 for use as original equipment, however, have been recalled for a degradation concern. All Takata inflators produced with propellant 2004L contain desiccant, and none of these desiccated inflators using propellant 2004L are under recall for a degradation concern. There have been no reported field ruptures in any non-recalled desiccated PSAN inflators.It is understood that desiccants fully saturate at some threshold, at which point any additional moisture will not be captured. This means the degradation process observed in non-desiccated inflators using propellant 2004 may also occur in non-recalled desiccated inflators using propellant 2004, assuming additional moisture enters the inflator and high temperature cycling occurs. Based on available information, desiccant saturation can occur within the first five years in the worst environments, and the time required for full saturation is affected by multiple factors. While no present safety risk has been identified, further work is needed to evaluate the future risk of non-recalled desiccated inflators using propellant 2004.Three entities -- Takata (now known as TK Global), the Independent Testing Coalition, and Exponent -- have been studying the long-term behavior of Takata desiccated PSAN inflators using propellant 2004L (as well as 2004) in the presence of moisture and temperature cycling. The research efforts, which include development of predictive modeling techniques and field sample analysis, are ongoing. To date, none of the researchers have identified field evidence showing that propellant 2004L is undergoing a degradation process that leads to aggressive deployment and potential rupture. However, the time in service of such inflators remains short compared to that of the inflators using propellant 2004. Further study is needed to assess the long-term safety of desiccated inflators using propellant 2004L.The Office of Defects Investigation is opening this investigation to examine whether a safety defect related to propellant degradation exists in non-recalled desiccated PSAN frontal inflators manufactured by Takata. This investigation will require extensive information on Takata production processes and surveys of inflators in the field. Lists of recall actions that may have used desiccated PSAN inflators as remedy parts, as well as the makes and models originally manufactured with them, is available with the downloadable version of this document (see nhtsa.gov/recalls?nhtsaId=EA21002 -- note this information is subject to change/revision as the investigation proceeds). This investigation does not supersede EA15-001, which remains open.
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