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2016 MERCEDES-BENZ E400

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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Owner complaints by model year

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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

Limited mileage data: 11 of 34 reports include usable mileage. There isn’t enough coverage to show a useful chart.

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.

  • Air Bags. Review the 22 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Steering. Review the 4 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Engine. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports0 fire reports0 injury reports

What owners actually said

34 reports
Mileage unknown · Feb 20, 2021
Air Bags

THE DEALERSHIP STILL DOESN'T HAVE A REMEDY FOR TAKATA RECALL OVER 2 YEARS LATER

NHTSA ODI #11397143

Mileage unknown · Feb 15, 2021
Air Bags

ON 02/15/2019, I RECEIVED A LETTER FROM MERCEDES-BENZ USA, LLC, REGARDING MBUSA RECALL # 2019010001. THE LETTER ADVISED THAT "THE PASSENGER SIDE AIRBAG IN YOUR VEHICLE IS AFFECTED BY THIS RECALL BASED ON THE DEFECT DECISION OF TK HOLDINGS, INC. ('TAKATA')". IN THE TWO-YEAR PERIOD SINCE MY RECEIPT OF THE ORIGINAL LETTER, I HAVE R…

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ON 02/15/2019, I RECEIVED A LETTER FROM MERCEDES-BENZ USA, LLC, REGARDING MBUSA RECALL # 2019010001. THE LETTER ADVISED THAT "THE PASSENGER SIDE AIRBAG IN YOUR VEHICLE IS AFFECTED BY THIS RECALL BASED ON THE DEFECT DECISION OF TK HOLDINGS, INC. ('TAKATA')". IN THE TWO-YEAR PERIOD SINCE MY RECEIPT OF THE ORIGINAL LETTER, I HAVE RECEIVED NO FOLLOW-UP COMMUNICATIONS FROM THE MANUFACTURER REGARDING THIS ISSUE. I HAVE PROACTIVELY CONTACTED BOTH MERCEDES-BENZ USA AND MY LOCAL DEALERSHIP MULTIPLE TIMES, IN AN ATTEMPT TO OBTAIN SOME INDICATION AS TO WHEN THE RECALL WILL BE ADDRESSED, ONLY TO BE INFORMED THAT THE STATUS IS STILL "PENDING".

NHTSA ODI #11396237

Mileage unknown · Nov 4, 2020
Air Bags

2016 MERCEDES BENZ E400. CONSUMER WRITES IN REGARDS TO AIRBAG SAFETY RECALL. *LD THE CONSUMER WAS INFORMED THE PARTS TO REPAIR THE VEHICLE WERE NOT YET AVAILABLE. THE CONSUMER STATED THE REPAIR EXCEEDED A REASONABLE AMOUNT OF TIME. *JS *JS

NHTSA ODI #11372250

Mileage unknown · Oct 26, 2020
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CONTACTED MERCEDES-BENZ OF CHERRY HILL (2151 NJ-70, CHERRY HILL, NJ 08002; (856) 663-3200) WHERE IT WAS CONFIRMED T…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CONTACTED MERCEDES-BENZ OF CHERRY HILL (2151 NJ-70, CHERRY HILL, NJ 08002; (856) 663-3200) WHERE IT WAS CONFIRMED THAT PARTS WERE NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER 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 #11366428

Mileage unknown · Aug 24, 2020
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAG). AFTER CONTACTING MERCEDES OF SOUTH ORLANDO LOCATED AT 4301 MILLENIA BLVD, ORLANDO, FL 32839, AND THE MANUFACTURER, THE CONTACT WAS INFORMED THAT THE PARTS NEEDED FOR THE RECALL REMEDY WE…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAG). AFTER CONTACTING MERCEDES OF SOUTH ORLANDO LOCATED AT 4301 MILLENIA BLVD, ORLANDO, FL 32839, AND THE MANUFACTURER, THE CONTACT WAS INFORMED THAT THE PARTS NEEDED FOR THE RECALL REMEDY WERE STILL NOT AVAILABLE AND NO ESTIMATED TIME FOR RECEIVING THE PARTS COULD BE PROVIDED. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE CONTACT WAS CONCERNED THE MANUFACTURER HAD EXCEED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *BF*JB

NHTSA ODI #11350980

55,000 miles · Jun 19, 2020
SuspensionWheels

CHAMFER BOLTS BENT BY POTHOLES. CAUSED UNEVEN WEAR OF TREAD AND MULTIPLE FLATS OVER PAST YEAR. *TR

NHTSA ODI #11329692

Mileage unknown · May 22, 2020
Air Bags

TLA* TASTE RECALL. THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO RECALL THE REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. AN UNKNOWN DEAL…

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TLA* TASTE RECALL. THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO RECALL THE REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER HAD EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. AN UNKNOWN DEALER WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.*DT*JB

NHTSA ODI #11325560

18,763 miles · Mar 31, 2020
Power TrainSteering

TL* THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO MERCEDES BENZ OF HUNT VALLEY 9800 YORK ROAD COCKEYSVILLE, MD 21030, (410)-666-7777 TO BE REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 17V241000 (STEERING). THE CONTACT STATED THAT THE FREE REPAIR FAILED TO FIX THE FAILURE STATED IN THE RECA…

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TL* THE CONTACT OWNS A 2016 MERCEDES BENZ E400. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO MERCEDES BENZ OF HUNT VALLEY 9800 YORK ROAD COCKEYSVILLE, MD 21030, (410)-666-7777 TO BE REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 17V241000 (STEERING). THE CONTACT STATED THAT THE FREE REPAIR FAILED TO FIX THE FAILURE STATED IN THE RECALL. THE CONTACT STATED THAT THERE WAS AN ABNORMAL SOUND WHEN THE ACCELERATOR PEDAL WAS DEPRESSED. THE CONTACT STATED THAT THE SOUND DISAPPEARED WHEN THE VEHICLE EXCEEDED 40 MPH. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 18,763.

NHTSA ODI #11319853

Mileage unknown · Mar 16, 2020
Air Bags

I BOUGHT THIS CAR USED FROM MERCEDES BENZ IN MAY 2019, AND DECIDED TO RENT IT ON TURO TO PAY MONTHLY PAYMENTS OF THE LOAN, BUT TURO REJECTED IT AS IT HAS A RECALL ON IT, --------------------------------------------------- MERCEDES-BENZ USA IS RECALLING CERTAIN MY 2010-2017 C-CLASS, GLK-CLASS, SLS-CLASS AND E-CLASS COUPE MERCEDE…

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I BOUGHT THIS CAR USED FROM MERCEDES BENZ IN MAY 2019, AND DECIDED TO RENT IT ON TURO TO PAY MONTHLY PAYMENTS OF THE LOAN, BUT TURO REJECTED IT AS IT HAS A RECALL ON IT, --------------------------------------------------- MERCEDES-BENZ USA IS RECALLING CERTAIN MY 2010-2017 C-CLASS, GLK-CLASS, SLS-CLASS AND E-CLASS COUPE MERCEDES-BENZ VEHICLES EQUIPPED WITH PASSENGER-SIDE FRONTAL AIRBAGS AFFECTED BY THE DEFECT DECISION OF TK HOLDINGS, INC. ( TAKATA ). UNDER CERTAIN CIRCUMSTANCES DURING A CRASH THAT NECESSITATES FRONTAL AIRBAG DEPLOYMENT, THE DEFECT IN YOUR PASSENGER-SIDE FRONTAL AIRBAG INFLATOR MAY CAUSE THE INFLATOR TO EXPLODE. A PASSENGER-SIDE INFLATOR EXPLOSION DURING DEPLOYMENT COULD RESULT IN METAL FRAGMENTS STRIKING THE FRONT PASSENGER OR OTHER OCCUPANTS, POSSIBLY CAUSING SERIOUS INJURY OR DEATH. SAFETY RISK: ACCORDING TO TAKATA, IN THE EVENT OF AN INFLATOR EXPLOSION, METAL FRAGMENTS COULD PASS THROUGH THE AIR BAG CUSHION MATERIAL, WHICH MAY RESULT IN INJURY OR DEATH TO VEHICLE OCCUPANTS. REMEDY: AN AUTHORIZED MERCEDES-BENZ DEALER WILL REPLACE THE PASSENGER-SIDE AIRBAG. RECALL STATUS: RECALL INCOMPLETE. REMEDY NOT YET AVAILABLE

NHTSA ODI #11318300

Mileage unknown · Feb 7, 2020
Air Bags

TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PARTS 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. MERCEDES-BENZ O…

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TL* TAKATA RECALL. THE CONTACT OWNS A 2016 MERCEDES-BENZ E400. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PARTS 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. MERCEDES-BENZ OF GILBERT 3455 S GILBERT RD, GILBERT, AZ 85297, WAS CONTACTED AND CONFIRMED THAT THE PART FOR THE RECALL REPAIR WAS NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE VIN WAS PROVIDED BUT COULD NOT BE DECODED.

NHTSA ODI #11307789

Official recalls

7

21V638000 · Air Bags:frontal

Aug 13, 2021

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015-2016 E400 Coupe, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2011-2014 E350 Coupe, and 2012-2014 E350 Cabrio vehicles. An incorrect front passenger air bag may have been installed during a prior repair.

Consequence & remedy

Consequence: An incorrect air bag may not function properly in a crash, increasing the risk of injury.

Remedy: Dealers will replace the front passenger air bag on the affected vehicles, free of charge. Owner notification letters were mailed on September 10, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

19V787000 · Communication

Nov 1, 2019

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location. For a full list of the affected models visit: https://static.nhtsa.gov/odi/rcl/2019/RMISC-19V787-4620.pdf

Consequence & remedy

Consequence: An inaccurate vehicle location may delay emergency responders, increasing the risk of injury.

Remedy: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge. The recall began December 23, 2019. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2019120008.

19V010000 · Air Bags:frontal:passenger Side:inflator Module

Jan 9, 2019

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2014-2017 E550 Cabrio, and 2014-2016 E550 Coupe vehicles sold, or ever registered, in the states of AL, CA, FL, GA, HI, LA, MS, SC, TX, PR, AS, GU, the MP, and VI or "Zone A." Additionally, MBUSA is recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio, 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2011 C300, 2011-2014 C300 4Matic, C350, C63 AMG, E350 Cabrio, E350 Coupe, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2011-2016 E550 Cabrio, E550 Coupe, 2011-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AZ, AR, DE, DC, IL, IN, KS, KY, MD, MO, NE, NV, NJ, NM, NC, OH, OK, PA, TN, VA, and WV or "Zone B." MBUSA is also recalling certain 2012-2014 C250, E350 4Matic Coupe, SLS AMG Cabrio 2012-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, 2010-2011 C300, 2010-2014 C300 4Matic, C350, C63 AMG, E350 Coupe, 2011-2014 E350 Cabrio, SLS AMG Coupe, 2015-2016 E400 4Matic Coupe, E400 Cabrio, E400 Coupe, 2016-2017 E550 Cabrio, 2010-2016 E550 Coupe, 2010-2015 GLK350 4Matic, GLK350 RWD, and 2013-2015 GLK250 BlueTec 4Matic vehicles ever registered in the states of AK, CO, CT, ID, IA, ME, MA, MI, MN, MO, NH, NY, ND, OR, RI, SD, UT, VT, WA, WI and WY or "Zone C." These vehicles are equipped with air bag inflators assembled as part of the passenger frontal air bag modules that may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.

Consequence & remedy

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

Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.

17V627000 · Air Bags:frontal

Oct 6, 2017

Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic Coupe, GLK250 4Matic BlueTec, GLK350, GLK350 4Matic, 2016-2017 C350e, C43 AMG, 2015 C400 4Matic, 2016-2018 C63 AMG, GLC300, GLC300 4Matic, 2017-2018 C300 Coupe, C300 4Matic Coupe, C43 AMG, C63 AMG Coupe, C63S AMG Coupe, C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63 AMG Cabriolet, C63S AMG Cabriolet, GLC300 4Matic Coupe, GLC43 AMG, GLC43 AMG Coupe, 2014 E350 Coupe, E350 4Matic Coupe, E350 Cabriolet, E400 Hybrid, 2015-2017 E400 Coupe, E400 4Matic Coupe, E400 Cabriolet, 2014-2017 E550 Coupe, E550 Cabriolet, B250e, 2014-2016 E250 BlueTec, E63 AMG 4Matic Wagon, 2012-2013 E350 BlueTec, 2012-2016 E350, E350 4Matic, 2015-2016 E400, E400 4Matic, 2012 E63 AMG, 2014-2015 E250 4Matic BlueTec, 2013-2016 E350 Wagon, 2017 GLC300d 4Matic, and 2018 GLC350e 4Matic. The driver's air bag may unexpectedly deploy due to insufficient grounding of the steering components if an electrostatic discharge occurs and the air bag clockspring is broken.

Consequence & remedy

Consequence: If the driver air bag inadvertently deploys, it can increase the risk of injury and a crash.

Remedy: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.

17V241000 · Steering:electric Power Assist System

Apr 11, 2017

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2016 GLE300d 4Matic, E400 4Matic Coupe, GL63 AMG, GLE350, GLE350 4Matic, GLE350d 4Matic, GLE400 4Matic, GLE43 AMG Coupe 4Matic, GLE550e 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic and GLE63S AMG Coupe 4Matic vehicles, 2017 E300 4Matic and GLS63 AMG 4Matic vehicles, and 2016-2017 GL350 4Matic BlueTec, GL450 4Matic, and GL550 4Matic vehicles. The affected vehicles have an electric power steering connector that may be insufficiently sealed, allowing water to enter the control unit.

Consequence & remedy

Consequence: If water enters the power steering control unit, the power steering assist may be deactivated, increasing the risk of a crash.

Remedy: MBUSA will notify owners, and dealers will replace the connector and inspect the electric power steering rack, replacing the rack as necessary. These repairs will be performed free of charge. Remedy parts are currently unavailable. Interim notices informing owners of the safety risk are expected to be mailed June 30, 2017. Owners will receive a second notice when remedy parts become available. Owners may contact MBUSA customer service at 1-800-367-6372.

16V899000 · Steering:electric Power Assist System

Dec 14, 2016

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2013-2015 SL550, 2013-2014 SL63 AMG, 2014-2016 E350, 2014 E350 Cabriolet, E350 Coupe, 2014-2015 S550, 2015 E350 Bluetec, 2015-2016 E400, 2016 E550 Coupe, and Maybach S600 vehicles manufactured August 23, 2012, to August 14, 2015. The affected vehicles use an electric power steering system that may have improperly soldered contacts inside the control unit, potentially resulting in the power steering system deactivating while driving.

Consequence & remedy

Consequence: If the control unit pins lose connection, there would be a loss of electric power steering assist, increasing the risk of a crash. The increase in pin contact resistance can also increase the risk of a fire, even while the vehicle is parked and ignition is off.

Remedy: MBUSA will notify owners, and dealers will replace the electric power steering control unit, free of charge. The recall began October 13, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.

15V505000 · Engine And Engine Cooling:engine

Aug 11, 2015

Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2016 Mercedes Benz E350, E400, E400 4Matic, E63 4M S AMG, E350 4Matic, E63-4M S AMG, 2015 CLS400, CLS400 4Matic, CLS550, CLS63-4M "P" AMG, and CLS550 4Matic vehicles manufactured April 16, 2015, to April 22, 2015. The integral steel cable that secures the rubber seal to the bulkhead might have been damaged due to the supplier rework of the rubber seal. In the event the rubber seal is not properly secured around the engine compartment, it is possible for the rubber seal to temporarily stick to the hood when it is opened and then may fall into the engine bay when the hood is closed.

Consequence & remedy

Consequence: If the rubber seal falls into the engine compartment, it may contact parts of the engine or exhaust system, increasing the risk of a fire.

Remedy: MBUSA will notify owners, and dealers will replace the rubber seal, in the engine compartment, free of charge. The recall began on September 2, 2015. MBUSA's number is 2015080001. Owners may contact MBUSA customer service at 1-201-573-5339.

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

EA21002 · 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.