The car has a plastic part in the oil housing component that cracks under heat usually between 50000 and 70000 miles causing a major loss of coolant onto highway and disables the engine
- NHTSA ID
- 11744815
- Incident
- Jun 12, 2026
Owner-reported complaints naming the engine system, filed with NHTSA
Data refreshed
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2019 BMW 430I submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 10 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
The car has a plastic part in the oil housing component that cracks under heat usually between 50000 and 70000 miles causing a major loss of coolant onto highway and disables the engine
The contact owns a 2019 BMW 430I. The contact stated that there was a coolant leak. The contact stated that the engine overheated and the vehicle stalled while driving. The message "Engine Overheating - Stop Vehicle Immediately" was displayed. The vehicle was towed to the local dealer, where it was diagnosed, and it was determined that the coolant housing needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the local dealer, where it was determined that the coolant water pump needed to be replaced. The vehicle was repaired, but the failure persisted. The vehicle was taken to the same local dealer, where it was diagnosed, and it was determined that there was coolant leaking from the oil housing. The vehicle was not repaired. The manufacturer was contacted, a complaint was filed, and the contact was referred to the NHTSA Hotline. The failure mileage was approximately 116,758.
On my way home driving, my car dashboard and LCD screen give me a warning of overheating and engine oil pressure too low. Car stalled on stalled soon after, and started smoking. So I had the car towed and was told from bmw dealership, I had to get a new engine. I have kept up on my oil change and maintenance and never got these warning signs until now. I did mr research and found out from Kelly blue book and other websites such Dealer Rater that bmw same year make and model have a few recalls including engine cooling and crankshaft sensor malfunction. The bmw mechanic advise the coolant and oil holder made of plastic melted down into the engine and engine needs to be replaced. However, there have been reports states that other have experience the same thing with bmw cars. This should not have happened when much warnings was not given and how ironic same year make and model had the same issue and recall was issued. I have screen shots to prove it.
The contact owns a 2019 BMW 430I. The contact stated that while driving at an undisclosed speed, the "Coolant Low" message was displayed, prompting the contact to add coolant to the coolant reservoir. The vehicle returned to normal functionality, but the failure became a regular occurrence. The low coolant warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 99,000.
I purchased my vehicle October2023. May 23,2024, at 1:34 pm, my vehicle broke down due to a message on my dashboard stating “Drivetrain malfunction”. I was on the highway with no use of my gas pedal, which resulted in me rolling back all while being 5 months pregnant. June 18,2024, at 3:04pm ,my vehicle broke down again due to the same message that previously popped up “Drivetrain malfunction”. I was also on the highway with no use of my gas pedal all while pregnant. July 18,2024, at 12:25 midnight, my vehicle broke down again due to the previous problem “Drivetrain malfunction” by the airport with no use of my gas pedal all while 6 months pregnant. Each time I my vehicle malfunction I almost got hit by other vehicles because I had no use of my gas pedals to get out of the way. There were no warning signs at all. When the message pops up on my dashboard the gas pedal completely becomes inoperable. This vehicle has put me and my soon to be baby in harms way multiple times. The dealership has had 3 times to fix the problem and still fail to do so. Having their opportunity to fix it three times just to tell me it’s because it doesn’t have gas in it when it did has put my in a situation where I’m constantly worried about it braking down again putting me and my unborn child in danger AGAIN, to where I am financing a car I can not use. Not including the 2 times I had to pay to get it towed from the airport because the police told me I couldn’t leave it there.
Coolant leaking due to overheating, seems to be common problem
The contact owns 2019 BMW 430I. The contact stated while the vehicle was parked, he noticed coolant was leaking underneath the vehicle onto the ground. Additionally, the contact stated while driving at various speeds, the message that the coolant level was low was displayed and the vehicle was overheating. The vehicle was taken to the dealer several times. The dealer diagnosed that the vehicle with a fractured coolant hose, and that the oil filter housing, and an unknown part connecting the engine block from the coolant reservoir needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 40,000.
On Aednesday April 12th, I was driving on a busy road and the car died. There was no safe place for me to pull off which had cars swerving to miss me. There was no indication of coolant level low. The car just died. After extensive research, I found out this car was part of a service action that was never performed because I wasn’t notified of it. This is very dangerous to anyone who owns a 2019 BMW 430i and will cause bodily harm or death if not recalled.
Car stalled because of coolant vent line in cylinder head Faulty coolant line like other models. I was lucky enough to get out of traffic without an accident. This car had to be flatbeded to dealership to repair their “service advisory” which I was never notified of. My papers from dealership says BMW recall and they are now refusing payment for tow!! This faulty part could cause someone to be killed!!! They need to be held accountable for tow because of a faulty part that could be deadly
COOLANT HOSE AND FITTINGS FAILED. OVERHEATED THE ENGINE. CAR SPEED WAS LIMITED AND HAD TO STOP THE CAR ON THE SIDE OF THE ROAD. BMW USES PLASTIC PARTS FOR THE COOLING SYSTEM. THESE PLASTIC PARTS FAILED AFTER 35,000 MILES. THE COST TO REPAIR WAS ~ $1200.00
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
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