2017 BMW 540I

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.

The contact owns a 2017 BMW 540I equipped with a Zenna Tires, Tire Line: Argus/UHP, Tire Size: 275/30/ZR20, DOT Number: 045YNAUY84924. The contact stated the driver's side rear tire was slowly deflating. The vehicle was taken to a Tire Shop, and the technician became aware of bubbles on the tire. The tire was replaced on a Friday, and the following Monday, the new tire indicated that the tire pressure was 0 PSI. The Tire Shop was contacted and refused to replace the tire or provide additional assistance. The manufacturer was informed of the failure. The tire failure mileage was approximately 10,000. The vehicle failure mileage was approximately 70,000.

NHTSA ID

11720421

Incident

Feb 20, 2026

Mileage

70,000 mi

as per [XXX] RE: Recall 22V-xxx: Positive Crankcase Ventilation (PCV) Valve Heater – B11 01 22 This should be covered by BMW but they charges us and not refunding review charges below [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11701308

Incident

Jan 31, 2022

While driving on highways when there is no car in front of me, my car suddenly warns me of collision and applies brakes automatically! This almost caused an accident with the cars behind me. They were about to collide with me from behind because my car was applying brakes automatically without my control. Please help me urgently.

NHTSA ID

11679698

Incident

Jul 10, 2025

Driver seat restraint module system malfunction.

NHTSA ID

11631081

Incident

Dec 7, 2024

Vehicle has severely poor quality coolant hoses made from poor quality material that cannot withstand the flow of pressure within the coolant system process. Leading to the hoses deteriorating from internal pressure thus causing the coolant hoses to leak. The coolant sensors only indicate low coolant levels when there is, 1 and 3/4 inches of coolant liquid left which is 70% lower than the minimum coolant line within the main coolant reservoir which can then lead to engine failure that could result into a vehicle accident or wreck causing injury or even death. This problem has been commonly known and reported throughout the BMW community for BMW’s with the Generation 1 & 2 B58 engine models. I have taken my vehicle to two local BMW Dealerships in my surrounding area and have been notified by those dealerships that the hoses have been tested and tried under extreme conditions and that the quality should not be pertaining to the coolant leak issue rather that the coolant leak issue is effected by age and wear and tear and possibility of environmental debris or other environmental factors depending on the state and area the vehicle is based and driven in. I find that statement given by both dealerships to be inaccurate as myself and other BMW owner’s have had these issues within 50,000 miles or less and the vehicle being garage kept and only obtained between 10,000-12,000 miles annually. I sincerely branch out to the National Highway Safety Administration for additional support in holding the manufacturer accountable for it’s irresponsibility to not take corrective action on the documented common issue within the Generation 1 & 2 B58 engine models.

NHTSA ID

11630787

Incident

Dec 15, 2024

On G models of the bmw 5 series. Ac coil leaks r1234yf freon which causes safety issue due to the gas being exposed into the cabin of the car and to the atmosphere. Dealerships wants $5000-7000 for this repair as the whole dash needs to come out. This is almost a guaranteed failure and BMW has failed to recall for this fix. This issue arises usually at 50k-70k miles. There are no lights that come out everything will work but AC will not.

NHTSA ID

11603061

Incident

Jul 8, 2024

Daytime running lights are dim or discolored. SIB 63 04 was issued acknowledging the problem, however repairs are only covered under the new vehicle warranty. In most cases, the issue occurs after the new vehicle warranty has expired.

NHTSA ID

11570336

Incident

Jun 1, 2021

1. Airbag Light - Repaired on 9/18/23 ( cause : pass. front seat occupancy detection ) a. no explanation needed b. replaced by dealer c. warning chime and message on dash d. Labor and part cost $2380.93 2. Instrument Cluster - Repaired on 9/18/23 ( Blackout , loss of speedometer , fuel level , engine temp. directional indicator , etc. a. Cluster would blink ( on - off ) than total blackout. b. Labor and part cost $1905.28

NHTSA ID

11547975

Incident

Aug 22, 2023

A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module (ACSM) fault is stored: 930A1C - Front passenger seat occupancy detection transmitting fault (moisture)

The Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.

EVAP SYSTEM PURGE (VENT) VALVE EXT LTD WTY (ELW) 15/150

One or more of the LED daytime running lights are dim or discolored.

Check Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.

The basic conditions for initializing the power windows are not met.