Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade:
A
B
C
D
F
ungraded
What breaks on a 2018 BMW 440I
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
Electrical System
430.8%
Median failure at 900 miles
Other & Unspecified
323.1%
Median failure at 900 miles
Body & Structure
323.1%
Median failure at 52,300 miles
Airbags
215.4%
2 crashes, 0 fires · median 36,900 mi
Seat Belts
17.7%
1 crashes, 0 fires
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
250.0%
25,000 – 49,999 miles
125.0%
50,000 – 74,999 miles
125.0%
When owners complained
A spike years after the car went on sale usually means a part wearing
out on schedule across the whole fleet — the kind of pattern no single
owner can see from inside their own car.
Jun 2018peak 4May 2026
NHTSA investigations into the 2018 BMW 440I
An investigation is the step before a recall: the agency has seen enough
complaints to look into a pattern itself. An open one means it thinks
something may be wrong and nothing has been fixed yet.
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.C...
Complaints that involved harm
Reports where the owner recorded a crash, a fire, an injury or a death.
at 36,900 milesScottsdale, AZCrash3 injured
AIR BAGS
The contact owned a 2018 BMW 440i. The contact stated that while driving at 65 MPH, the vehicle crashed into a donkey. There were no airbags deployed upon impact. The windshield glass shattered and hit the contact's face. Her boyfriend's knees hit and cracked the passenger's side dashboard, and her daughter sustained bruises on her right side from hitting the passenger's side rear door; however, no medical attention was received. A police report was filed. The vehicle was towed to a tow yard and deemed totaled by the insurance company. The manufacturer was made aware of the failure and provided the contact with a credit towards the purchase of another vehicle. The failure mileage was approximately 36,900.
NHTSA complaint #11462270 — an unverified report by a vehicle owner.
Austin, TXCrash1 injured
SEAT BELTS
I was rear ended. My airbag did not deploy. I do not think my seatbelt restrained me because I was not sore in that area, but do not remember. My head hit the stearing wheel. I spent 3 months in a neuro-recovery program and still deal with post-concussive syndrome. The car is available for whomever would like to see it. I incurred a closed head injury with significant effects. No one has tried to reproduce the issue, and I'm actually scared that if there is a problem and another accident it's like I don't have airbags. I went to the BMW dealership and they just said that my VIN was not under a recall and I would have to deal with BMW legal for any further information. The car has been repaired from the rear end collision. There were no warning lights or anything. Other than this, I love the car. I want to make sure that if anyone in my family is driving and is hit their head will be protected from the steering wheel. the doctors have told me that if I get another concussion it could be devasting. Please let me know how to proceed. Thank you.
NHTSA complaint #11440689 — an unverified report by a vehicle owner.
Austin, TXCrash1 injured
AIR BAGS
I was rear ended. My airbag did not deploy. I do not think my seatbelt restrained me because I was not sore in that area, but do not remember. My head hit the stearing wheel. I spent 3 months in a neuro-recovery program and still deal with post-concussive syndrome. The car is available for whomever would like to see it. I incurred a closed head injury with significant effects. No one has tried to reproduce the issue, and I'm actually scared that if there is a problem and another accident it's like I don't have airbags. I went to the BMW dealership and they just said that my VIN was not under a recall and I would have to deal with BMW legal for any further information. The car has been repaired from the rear end collision. There were no warning lights or anything. Other than this, I love the car. I want to make sure that if anyone in my family is driving and is hit their head will be protected from the steering wheel. the doctors have told me that if I get another concussion it could be devasting. Please let me know how to proceed. Thank you.
NHTSA complaint #11440689 — an unverified report by a vehicle owner.
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
San Jose, CA
UNKNOWN OR OTHER
There is already an SIB 513316 out on similar defects. Sloshing noises/water in pax compartment due to rain water intrusion that has caused damage in electronic modules in the trunk due to a defective drainage system--holes are not large enough. Failure of control units located in damaged area--which are no longer functioning such as convertible rooftop will not fuction, radio system, check engine light are just a few we have noticed togther with the recent battery replacement we made. Water is pooled in the luggage comparment and rear pax area. Poor drainage resulting from vehicle design defect. BMW needs to remove or modify the drain outlet to prevent repeat flooding. The warranty and extended warranty never checked for this-- drainholes functionality which results in electronic malfunctioning and safety concerns. 2019 SIB should have enforced extended warranty to investigate and cover this design defect in this vehicle. We are submitting complaint to the office of defects and investigation and requesting a good will repair and replacement of faulty systems and mold abatement which will require replacement of the damaged and mold in the pax and rear trunk areas. I can not give a date as this has been an ongoing concern and I have only recently been able to address. I made an approximation only.
NHTSA complaint #11735249 — an unverified report by a vehicle owner.
San Jose, CA
STRUCTURE:BODY
There is already an SIB 513316 out on similar defects. Sloshing noises/water in pax compartment due to rain water intrusion that has caused damage in electronic modules in the trunk due to a defective drainage system--holes are not large enough. Failure of control units located in damaged area--which are no longer functioning such as convertible rooftop will not fuction, radio system, check engine light are just a few we have noticed togther with the recent battery replacement we made. Water is pooled in the luggage comparment and rear pax area. Poor drainage resulting from vehicle design defect. BMW needs to remove or modify the drain outlet to prevent repeat flooding. The warranty and extended warranty never checked for this-- drainholes functionality which results in electronic malfunctioning and safety concerns. 2019 SIB should have enforced extended warranty to investigate and cover this design defect in this vehicle. We are submitting complaint to the office of defects and investigation and requesting a good will repair and replacement of faulty systems and mold abatement which will require replacement of the damaged and mold in the pax and rear trunk areas. I can not give a date as this has been an ongoing concern and I have only recently been able to address. I made an approximation only.
NHTSA complaint #11735249 — an unverified report by a vehicle owner.
San Jose, CA
ELECTRICAL SYSTEM
There is already an SIB 513316 out on similar defects. Sloshing noises/water in pax compartment due to rain water intrusion that has caused damage in electronic modules in the trunk due to a defective drainage system--holes are not large enough. Failure of control units located in damaged area--which are no longer functioning such as convertible rooftop will not fuction, radio system, check engine light are just a few we have noticed togther with the recent battery replacement we made. Water is pooled in the luggage comparment and rear pax area. Poor drainage resulting from vehicle design defect. BMW needs to remove or modify the drain outlet to prevent repeat flooding. The warranty and extended warranty never checked for this-- drainholes functionality which results in electronic malfunctioning and safety concerns. 2019 SIB should have enforced extended warranty to investigate and cover this design defect in this vehicle. We are submitting complaint to the office of defects and investigation and requesting a good will repair and replacement of faulty systems and mold abatement which will require replacement of the damaged and mold in the pax and rear trunk areas. I can not give a date as this has been an ongoing concern and I have only recently been able to address. I made an approximation only.
NHTSA complaint #11735249 — an unverified report by a vehicle owner.
Santa Monica, CA
ELECTRICAL SYSTEM
- My car started having intermittent electrical issues. The first warning something was wrong was always the cars instrument cluster would start flashing, and the audio system would also drop in and out. Then later other malfunctions would start to show up on the center Nav Screen, some of the warnings are listed here : ○ Audio/speakers would cut out randomly while listening to music ○ Air Conditioning instrument cluster display lights would flash going in and out ○ “Parking assistance malfunction” warnings ○ "Increased Steering effort required" warnings (one time the steering locked while driving ~30mph for half a second) ○ Transmission malfunction warning (I have the transmission ‘jerk’ suddenly 1 time when I was slowly backing up in a 3 point turn), ○ Drivetrain malfunction warning. - My safety was put at risk because the power steering locked once, sometimes the steering would become difficult, and the engine jerked while driving - I brought it into a mechanic: they originally thought it was something wrong with my alternator (Invoice 1), but they couldn't really figure out the problem since it was intermittent. The alternator ended up not fixing the problem. I brought it back to them after the alternator was replaced and the same issues were present. They ended up checking the battery and saw that the positive battery cable had come loose (Invoice 2). Once they replaced the positive battery cable the issues went away. - I did research on the NHTSA Safety database and it looks like this has been a problem for ~400,000 BMW vehicles over the last ~15 years. See references: SIB 61 06 17, SIB 61 09 18, SIB 61 11 19, SIB 61 14 12 - The vehicle has not been inspected by the manufacturer, police, insurance representatives. It was brought into an independent service center - There were warning lamps and other symptoms that showed up after the instrument cluster started flickering while driving (that was always the first sign). I attached screenshots of those warnings.
NHTSA complaint #11557903 — an unverified report by a vehicle owner.
at 36,900 milesScottsdale, AZCrash3 injured
AIR BAGS
The contact owned a 2018 BMW 440i. The contact stated that while driving at 65 MPH, the vehicle crashed into a donkey. There were no airbags deployed upon impact. The windshield glass shattered and hit the contact's face. Her boyfriend's knees hit and cracked the passenger's side dashboard, and her daughter sustained bruises on her right side from hitting the passenger's side rear door; however, no medical attention was received. A police report was filed. The vehicle was towed to a tow yard and deemed totaled by the insurance company. The manufacturer was made aware of the failure and provided the contact with a credit towards the purchase of another vehicle. The failure mileage was approximately 36,900.
NHTSA complaint #11462270 — an unverified report by a vehicle owner.
APO, DC
UNKNOWN OR OTHER
My husband bought a BMW through the military sales program, had it delivered to the United States, and we took it with us to Germany where we currently live. The car is made to U.S. specifications and I had been driving the car weekly in Germany to keep the battery running while he is away on a deployment. On April 11, 2022, as soon as I pressed the ignition button, the dashboard flashed a strange indicator light which I didn't have time to examine because my attention was immediately diverted when a metal bar next to the right rear headrest deployed from inside the seat and punched through the windshield. It sounded like someone threw a brick into the car. The check engine indicator also lit up but deactivated after a few minutes. According to the owner's manual, the metal bar is one of a set of two rollover protection rods which are designed to deploy in the event of a sufficiently serious accident or if the car's longitudinal axis is tilted excessively (i.e. if the car flips over). But there was no accident... All I did was turn the car on. The car remained in park the entire time. We can't find any evidence of this type of misfire occurring with this model car. The car is currently in the shop for repairs after being towed to a local BMW dealership. They investigated the incident, wrote me an email saying they did not notice any technical defects, and refuse to pay for repairs or take responsibility for this incident. Something like this is dangerous and should not happen at all. I think it meets recall criteria, and I definitely think BMW should pay to fix it.
NHTSA complaint #11461884 — an unverified report by a vehicle owner.
APO, DC
STRUCTURE:BODY
My husband bought a BMW through the military sales program, had it delivered to the United States, and we took it with us to Germany where we currently live. The car is made to U.S. specifications and I had been driving the car weekly in Germany to keep the battery running while he is away on a deployment. On April 11, 2022, as soon as I pressed the ignition button, the dashboard flashed a strange indicator light which I didn't have time to examine because my attention was immediately diverted when a metal bar next to the right rear headrest deployed from inside the seat and punched through the windshield. It sounded like someone threw a brick into the car. The check engine indicator also lit up but deactivated after a few minutes. According to the owner's manual, the metal bar is one of a set of two rollover protection rods which are designed to deploy in the event of a sufficiently serious accident or if the car's longitudinal axis is tilted excessively (i.e. if the car flips over). But there was no accident... All I did was turn the car on. The car remained in park the entire time. We can't find any evidence of this type of misfire occurring with this model car. The car is currently in the shop for repairs after being towed to a local BMW dealership. They investigated the incident, wrote me an email saying they did not notice any technical defects, and refuse to pay for repairs or take responsibility for this incident. Something like this is dangerous and should not happen at all. I think it meets recall criteria, and I definitely think BMW should pay to fix it.
NHTSA complaint #11461884 — an unverified report by a vehicle owner.
APO, DC
ELECTRICAL SYSTEM
My husband bought a BMW through the military sales program, had it delivered to the United States, and we took it with us to Germany where we currently live. The car is made to U.S. specifications and I had been driving the car weekly in Germany to keep the battery running while he is away on a deployment. On April 11, 2022, as soon as I pressed the ignition button, the dashboard flashed a strange indicator light which I didn't have time to examine because my attention was immediately diverted when a metal bar next to the right rear headrest deployed from inside the seat and punched through the windshield. It sounded like someone threw a brick into the car. The check engine indicator also lit up but deactivated after a few minutes. According to the owner's manual, the metal bar is one of a set of two rollover protection rods which are designed to deploy in the event of a sufficiently serious accident or if the car's longitudinal axis is tilted excessively (i.e. if the car flips over). But there was no accident... All I did was turn the car on. The car remained in park the entire time. We can't find any evidence of this type of misfire occurring with this model car. The car is currently in the shop for repairs after being towed to a local BMW dealership. They investigated the incident, wrote me an email saying they did not notice any technical defects, and refuse to pay for repairs or take responsibility for this incident. Something like this is dangerous and should not happen at all. I think it meets recall criteria, and I definitely think BMW should pay to fix it.
NHTSA complaint #11461884 — an unverified report by a vehicle owner.
Austin, TXCrash1 injured
SEAT BELTS
I was rear ended. My airbag did not deploy. I do not think my seatbelt restrained me because I was not sore in that area, but do not remember. My head hit the stearing wheel. I spent 3 months in a neuro-recovery program and still deal with post-concussive syndrome. The car is available for whomever would like to see it. I incurred a closed head injury with significant effects. No one has tried to reproduce the issue, and I'm actually scared that if there is a problem and another accident it's like I don't have airbags. I went to the BMW dealership and they just said that my VIN was not under a recall and I would have to deal with BMW legal for any further information. The car has been repaired from the rear end collision. There were no warning lights or anything. Other than this, I love the car. I want to make sure that if anyone in my family is driving and is hit their head will be protected from the steering wheel. the doctors have told me that if I get another concussion it could be devasting. Please let me know how to proceed. Thank you.
NHTSA complaint #11440689 — an unverified report by a vehicle owner.
Austin, TXCrash1 injured
AIR BAGS
I was rear ended. My airbag did not deploy. I do not think my seatbelt restrained me because I was not sore in that area, but do not remember. My head hit the stearing wheel. I spent 3 months in a neuro-recovery program and still deal with post-concussive syndrome. The car is available for whomever would like to see it. I incurred a closed head injury with significant effects. No one has tried to reproduce the issue, and I'm actually scared that if there is a problem and another accident it's like I don't have airbags. I went to the BMW dealership and they just said that my VIN was not under a recall and I would have to deal with BMW legal for any further information. The car has been repaired from the rear end collision. There were no warning lights or anything. Other than this, I love the car. I want to make sure that if anyone in my family is driving and is hit their head will be protected from the steering wheel. the doctors have told me that if I get another concussion it could be devasting. Please let me know how to proceed. Thank you.
NHTSA complaint #11440689 — an unverified report by a vehicle owner.
at 52,300 milesWhite Plains, NY
STRUCTURE:BODY
WHILE DRIVING ON A LOCAL PARKWAY, OUR SUNROOF SPONTANEOUSLY EXPLODED. WE WERE NOT PASSING UNDER ANYTHING AND NOTHING OF ANY NOTICEABLE SIZE STRUCK THE CAR OR THE SUNROOF. THERE WAS A VERY LOUD BANG, AND WHEN WE PULLED OVER, WE DISCOVERED A LARGE HOLE IN THE SUNROOF. THERE WERE SHARDS OF GLASS SITTING ATOP THE SUNROOF COVER, WHICH HAD WE NOT HAD CLOSED, SOME OF THE GLASS WOULD HAVE FALLEN INTO THE PASSENGER COMPARTMENT. A SIMPLE GOOGLE SEARCH MAKES CLEAR THAT EXPLODING SUNROOFS ARE A REAL DANGER.
NHTSA complaint #11373788 — an unverified report by a vehicle owner.
at 900 milesIndianapolis, IN
UNKNOWN OR OTHER
I HAVE DRIVEN THE CAR NOW ABOUT 900 MILES. AT NO TIME HAS THE FRONT END COLLISION/PEDESTRIAN WARNING SYSTEM GIVEN ME ANY WARNING EVEN THOUGH I HAVE NEARLY REAR-ENDED THE CAR AHEAD AND EVEN THOUGH I HAVE IT SET FOR THE EARLIEST WARNING POSSIBLE. BMW N.A. ASSIST CUSTOMER CARE STATES THAT I SHOULD RECEIVE BOTH VISIBLE AND AUDIBLE WARNINGS BUT ALSO STATES I HAVE TO RELY ON WHAT DEALER SAYS. THE DEALER- DREYER & REINBOLD - STATES THE SYSTEM IS WORKING AS IT SHOULD. THIS CANNOT BE TRUE. SINCE MY 2015 BMW 535I HAD A PROPERLY WORKING FRONT END COLLISION WARNING THAT FREQUENTLY APPEARED ON MY INSTRUMENT PANEL AND HEADS-UP DISPLAY, I KNOW HOW THE SYSTEM IS SUPPOSED TO WORK. THE CURRENT CONDITION OF MY VEHICLE CREATES A SERIOUS SAFETY HAZARD AND I DON'T KNOW WHERE ELSE TO TURN. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'
NHTSA complaint #11099936 — an unverified report by a vehicle owner.
at 900 milesIndianapolis, IN
ELECTRICAL SYSTEM
I HAVE DRIVEN THE CAR NOW ABOUT 900 MILES. AT NO TIME HAS THE FRONT END COLLISION/PEDESTRIAN WARNING SYSTEM GIVEN ME ANY WARNING EVEN THOUGH I HAVE NEARLY REAR-ENDED THE CAR AHEAD AND EVEN THOUGH I HAVE IT SET FOR THE EARLIEST WARNING POSSIBLE. BMW N.A. ASSIST CUSTOMER CARE STATES THAT I SHOULD RECEIVE BOTH VISIBLE AND AUDIBLE WARNINGS BUT ALSO STATES I HAVE TO RELY ON WHAT DEALER SAYS. THE DEALER- DREYER & REINBOLD - STATES THE SYSTEM IS WORKING AS IT SHOULD. THIS CANNOT BE TRUE. SINCE MY 2015 BMW 535I HAD A PROPERLY WORKING FRONT END COLLISION WARNING THAT FREQUENTLY APPEARED ON MY INSTRUMENT PANEL AND HEADS-UP DISPLAY, I KNOW HOW THE SYSTEM IS SUPPOSED TO WORK. THE CURRENT CONDITION OF MY VEHICLE CREATES A SERIOUS SAFETY HAZARD AND I DON'T KNOW WHERE ELSE TO TURN. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).'
NHTSA complaint #11099936 — an unverified report by a vehicle owner.