Owners have filed 15 complaints
about the 2021 BMW 430I with NHTSA between 2021 and 2026.
The largest single group is the electrical system.
Across this model's run it ranks 5 of 5 worst.
The letter says how bad. This says what kind — whether this year drew
an unusual number of complaints, unusually dangerous
ones, or failures that arrived unusually early.
The dashed ring is 50 — the national norm. Further out is worse.
Complaint volume — 26
Against the median year of the BMW 430I. 50 means typical for this
model; 100 means roughly double.
Severity — 0
0% of these complaints
involved a crash, fire, injury or death, against a national rate of
9.7%.
Early failure — not reported
Too few complaints recorded a mileage to measure this.
Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade:
A
B
C
D
F
ungraded
What breaks on a 2021 BMW 430I
Every complaint is filed against a part. Follow any row for the complaints about that part alone.
Electrical System
640.0%
Median failure at 200 miles
Seat Belts
320.0%
Median failure at 13,000 miles
Engine & Cooling
320.0%
Other & Unspecified
16.7%
Tires
16.7%
Transmission & Drivetrain
16.7%
Median failure at 33,000 miles
When it fails
Odometer readings owners gave when they filed. About half of all
complaints include one.
Under 1,000 miles
133.3%
10,000 – 24,999 miles
133.3%
25,000 – 49,999 miles
133.3%
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.
Sep 2021peak 2Apr 2026
The most recent complaints
In the owners' own words, exactly as filed with NHTSA.
Long Island City, NY
ENGINE
The recall was issued more than 8 months ago but the remedy is still not yet available, which is very concerning as the problem may cause the event of fire even when the vehicle is parked. Issued SEP 23, 2025 Description of Problem It is possible for water to contact and enter the engine starter. This could lead to corrosion which could cause a short circuit. Safety Risk This could increase the risk of a thermal event or fire during driving or even when the vehicle is parked and the ignition is off.
NHTSA complaint #11734108 — an unverified report by a vehicle owner.
Henderson, NV
ENGINE
The engine Unknown The problem was confirmed by BMW as they sent me a notice. Unknown Unknown
NHTSA complaint #11729210 — an unverified report by a vehicle owner.
Belleville, IL
ELECTRICAL SYSTEM
I received a recall notice dated 9/23/2025. The recall is listed as URGENT safety issue that could cause a fire. The notice instructs not to drive the car or park in garage. It has been over 6 months now and there is still no fix. I am requesting the manufacture buyback my vehicle.
NHTSA complaint #11724645 — an unverified report by a vehicle owner.
at 13,000 milesPeachtree City, GA
SEAT BELTS
The contact owns a 2021 BMW 430I. The contact stated that the front driver’s side seat belt chest strap was shredded. The contact was concerned that the seat belt would not safely secure the driver in a crash. The contact stated that the shredded seat belt strap might have been caused by the seat belt strap touching the seat belt retractor while pulling the seat belt buckle up. The vehicle was taken to the local dealer who indicated that the seat belt needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was13,300.
NHTSA complaint #11721698 — an unverified report by a vehicle owner.
Georgetown, MA
ELECTRICAL SYSTEM
The contact called for the owner of the 2021 BMW 430I. The owner received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was not 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.
NHTSA complaint #11715568 — an unverified report by a vehicle owner.
Cupertino, CA
ENGINE
The component that malfunctioned is the engine starter relay, which is subject to an open BMW/NHTSA safety recall (issued September 2025) due to potential corrosion causing overheating, short circuits, and vehicle fire risk. The recall specifically advises parking the vehicle outside and away from structures until repaired. The vehicle is available for inspection upon request.My safety and the safety of my family were put at risk because the dealership (Capitol Nissan in San Jose) failed to disclose this critical fire-risk recall before or during the sale on January 4, 2026, despite it being noted on the provided Carfax report (without any explanation of its severity). I only learned of the fire hazard and "park outside" warning when an authorized BMW dealer informed me during an inspection on January 5, 2026.The recall issue has been confirmed by an authorized BMW dealer on January 5, 2026.The vehicle has been inspected by an authorized BMW dealer, but not yet by the manufacturer, police, or insurance representatives.There were no warning lamps, messages, or other symptoms that I noticed prior to purchase, as the problem is related to a latent defect covered by the recall. The issue was UNKNOWN to me until the BMW dealer informed me after the purchase.In addition, the dealership engaged in other fraudulent practices, including structuring my full cash payment as self-financed (with themselves as both seller and creditor) and adding unauthorized charges, but the primary safety concern prompting this report is the undisclosed fire-risk recall.
NHTSA complaint #11709689 — an unverified report by a vehicle owner.
San Jose, CA
ELECTRICAL SYSTEM
The contact owns a 2021 BMW 430I. The contact received notification of NHTSA Campaign Number: 25V636000 (Electrical System); however, the part to do the recall repair was not yet available. The local dealer was made aware of the issue and confirmed that parts were not yet 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.
NHTSA complaint #11708333 — an unverified report by a vehicle owner.
Philadelphia, PA
ELECTRICAL SYSTEM
The contact owns a 2021 BMW 430I. The contact had received a recall letter from the manufacturer for NHTSA Campaign Number: 25V636000 (Electrical System). The contact called the local dealer and was informed that parts were not yet available. 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.
NHTSA complaint #11706487 — an unverified report by a vehicle owner.
Jacksonville, FL
ELECTRICAL SYSTEM
Due to the severity of the current safety recall i am reaching out for BMW to supply a correction/remedy for the starter issue. This issue is causing added anxiety and this being my only reliable transportation is troublesome. If they are unable to fix the issue I am asking that they buy the car back so people can get other vehicles that don't run the risk of spontaneously combusting.
NHTSA complaint #11701950 — an unverified report by a vehicle owner.
Hagerstown, MD
UNKNOWN OR OTHER
Since September 2025 no remedy is available for my vehicle. Due to safety concerns and recall instructions I’ve been unable to drive the car. I’ve called BMW customer service as well as dealer and no resolve.
NHTSA complaint #11700127 — an unverified report by a vehicle owner.
at 33,000 milesHialeah, FL
POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT
The contact owns a 2021 BMW 430I. The contact stated while stopped at a traffic light, the light turned green; however, when the accelerator pedal was depressed, the vehicle failed to respond as intended. The contact stated that the power train warning light was illuminated. The contact turned off and restarted the vehicle, shifted to drive(D); however, the vehicle failed to respond. The contact had the vehicle towed to a dealer to be diagnosed. The dealer determined that the rear differential oil had leaked out causing the differential to seize. The contact was informed that the rear differential needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 33,000.
NHTSA complaint #11603683 — an unverified report by a vehicle owner.
Atlanta, GA
SEAT BELTS
This automobile is designed with a seatbelt assembly which has an arm which reaches out to bring your your seatbelt. See pix. It is made with plastic and glue and is amazingly flimsy. I cannot believe that BMW created such a "cute" but flimsy design. It cannot withstand being used hundreds of time when the seatbelt is used. It broke (see pix). Now a rigid arm with a jagged edge comes out at eye level. Someone is going to become seriously injured!!!! BMW claims that this resulted from misuse and not faulty cheap design and wants me to pay for the repair!!!!!!! This entire assembly needs to be recalled and replaced with some thing sturdier.
NHTSA complaint #11597432 — an unverified report by a vehicle owner.
Miami, FL
SEAT BELTS
The seat belt retractor keeps breaking, dealer fixed it once, broke after two days, dealer did not want to fix again, arguing for over a year, finally they fixed it supposedly, it broke again in less than a week. Dealer refuses to fix the problem saying that they will not cover it, this is a safety issue which scares me as the seat belt does not work well.
NHTSA complaint #11548996 — an unverified report by a vehicle owner.
at 200 milesNorthbrook, IL
ELECTRICAL SYSTEM
The contact owns a 2021 BMW 430I Convertible. The contact stated while driving 40 MPH, the electrical system suddenly failed, and all the instrument panel lights turned black. There were no warning lights illuminated. The contact veered to the side of the road and restarted the vehicle. The vehicle was taken to the dealer who diagnosed that an unknown software had failed. The contact stated that the vehicle was repaired however, the failure reoccurred while driving. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 200.
NHTSA complaint #11432736 — an unverified report by a vehicle owner.
El Paso, TX
TIRES:SIDEWALL
Pirelli Cinturato 7 all season 225/40R19 I found front and rear bump side wall tires and miles driven 5300 miles. I’m very concern about this issues
NHTSA complaint #11432662 — an unverified report by a vehicle owner.