Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2020 BMW 330i owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2020 BMW 330I. The contact stated while his wife was pulling into the yard, the engine overheated and the vehicle stalled. The contact stated that the message "Engine Compartment Overheating" was displayed. The vehicle was towed to Billy's Imports Service, where the spark plug wires, the engine oil filter, the PCV system, the hoses, the injectors, the O-rings, and the valve cover gasket were replaced. The vehicle was repaired. The dealer was not notified of the failure. The contact later received notification of BMW Campaign Number: 15Y150M, which the contact related to the failure. The manufacturer was contacted for reimbursement; however, the contact was advised that no assistance could be provided because the vehicle had exceeded the 150,000-mile limitation. The failure mileage was 156,894.
I started my vicheal up and turned the heater on on my 330i 2020i bmw I sat there for about 15 mins and noticed a smoke smell I stepped out my car and realized my car was on fire! No sensors went off saying car had any issues regarding coolant or engine oil or anything so I have zero idea what started my car fire Police and fire rescue was there Fire investigation is making a report an insurance representative will be inspecting From what I see online bmw was been having issues with 3 series randomly catching fire either by faulty water pump? By a short circuit? The vicheal is completely totaled my safety was at risk if I wouldve started driving and didn't notice it would've been way wrose than what happened unsure where insurance will be taking the vicheal to
The contact owns a 2020 BMW 330I. The contact stated that while driving at an undisclosed speed, the vehicle shuddered with an abnormal sound coming from underneath the vehicle. The vehicle was taken to a local independent mechanic where it was diagnosed that the bearing and motor mount needed to be replaced. Upon further investigation, the contact stated that the failure was related to NHTSA Campaign Number: 19V732000 (Engine); however, the VIN was not included. The local dealer was contacted, but the vehicle was not diagnosed or repaired because the VIN not included in the recall. The manufacturer was made aware of the failure. The failure mileage was approximately 80,000.
My car was parked at home and hadnt been driven in hours. My neighbor contacted me, saying that my car was on fire. I went outside, and it was on fire, and the fire department was called. After BMW conducted an investigation, they deemed the car fire to be related to the active recall. The manufacturer (BMW) is violating the National Traffic and Motor Vehicle Safety Act (49 U.S Code Section 30120) by refusing a "remedy without charge" for recall 24V-536. A manufacturer is required to provide a remedy for a safety recall "without charge." BMW is offering a loan payoff (21,851.37). This current offer violated this federal statute by forcing me to absorb the loss of my $2500 down payment and accumulated equity. …
The Active Grille Shutter (AGS) system on my vehicle suffered an internal mechanical failure (fault codes 138206 and 138224). These shutters are a critical part of the engine cooling system. Failure of the AGS to operate correctly leads to immediate engine overheating risks, potential sudden loss of power (Limp Mode) in high-speed traffic, and thermal damage to engine components, posing a severe safety hazard. The manufacturer, BMW of North America, has officially acknowledged this defect via Extended Warranty SIB 01 03 25. However, both the local dealer (BMW of Sterling) and BMW of North America corporate office have formally refused to honor this safety-related warranty repair. …
I own [redacted] BMW vehicle affected by a safety recall for a defective engine starter relay that may corrode, overheat, and cause a fire. The recall notice dated November 2025 states the vehicle is not safe to drive, with no remedy available, rendering it unusable and hazardous. Recall N0.25V-636. Under Kansas Lemon Law (K.S.A. 50-645 et seq.), I am entitled to a refund or replacement for this substantial defect impairing use, value, and safety, which BMW cannot repair. I demanded a full buyback at original purchase price, including fees, taxes, and incidental costs, or a comparable replacement. I requested a response within 10 business days. I sent this demand in November 2025 and have heard nothing since. The statute of limitations for lemon law claims in Kansas is four years from defect discovery, per UCC provisions for warranty breaches. …
Re: 25V-636 We received a recall notice for the above notice over a month ago. No further communication has been sent from BMW in the status of new part availability and they refuse to assist with accommodations because of the scale of the recall. The letter clearly states that there is a fire risk and to not park near structures. This leaves almost everybody who owns affected cars with no option but to put themselves or someone else at risk of this car catching on fire - where else can you park a car that might catch on fire? Its been 4 months since this recall has been issued nationally and no communicated resolution or targetted timing for resolution. Im concerned this recall will potentially start a gigantic car fire and harm someone, their homes, or their neighbors' property. …
The Oil filter housing on my BMW 330i failed randomly while driving causing my vehicle to be depleted off coolant within seconds. If you want to inspect the part you will have to reach out to bmw of Columbus for documentation and I can provide the service records for repair. This caused my vehicle to have to be brought to an immediate halt to not cause overheating or engine destroying failure at a time where service/repair isn't available. There were no warning lights or leaks prior to the vehicle malfunctioning all at once. I ubered to get coolant and once filling the reservoir the coolant immediately leaked out resulting in me needing a tow to the dealership. …
Good afternoon. I have called and spoken to my local BMW dealership at Grayson BMW service department many times. As of today they report no remedy and have no idea when a resolution will be available. Filing this complaint (second formal written complaint) due to lack of this not being in any sort of "timely manner." This recall is noted as an URGENT FIRE RISK WHEN PARKED for almost seven months now. I have parked the car outside and through the winter and now getting into the summer. In looking up this recall and reading associated documents, it seems there has been a remedy to many makes and models but still nothing for the 2020 330i, and no word on what to do, advisement, or timeline on resolution. I called the NHTSA hotline but after waiting, decided to attempt another written complaint. Previous complaint #11712900. Thank you, [redacted]
The left hydraulic engine motor mount (P/N 22117581621) completely collapsed and failed at 6 years and only 24,811 miles. The right mount was also replaced at the same time (P/N 22117581622). The failure allows unsafe, excessive engine movement and shifting under rotational torque loads. This shifting creates an immediate safety hazard, risking the sudden compromise of surrounding mechanical systems, cooling lines, and electrical harnesses while the vehicle is in motion. BMW North America acknowledged the premature nature of the failure by approving a goodwill repair for the labor costs but forced me to pay out-of-pocket for the defective parts. The engine mount issue was detected when the vehicle went in for normal services and the known recall for the engine starter which had the potential to cause bodily harm as well as property harm due to fire risk, even when the engine was off.
Related recalls
Engine
BMW of North America, LLC (BMW) is recalling certain 2019-2020 330i, 330i xDrive, and 2019 Z4 vehicles. The needle roller bearings of the counterbalance shafts may have been improperly installed, potentially causing the counterbalance shaft to loosen.
Remedy: BMW will notify owners, and dealers will replace the engine, free of charge. The recall began December 13, 2019. Owners may contact BMW customer service at 1-800-525-7417.
Engine complaints in other 330i years
Frequently asked questions
How common are engine problems on the 2020 BMW 330i?
NHTSA has 20 complaints about the engine & cooling of the 2020 BMW 330i, 38% of the model year's 53 complaints.
Is there a recall for 2020 BMW 330i engine problems?
Yes — NHTSA recall 19V-732 (engine, Oct 15, 2019). Recall repairs are free at authorized dealers.
At what mileage do 2020 BMW 330i engine problems start?
Half of the complaints with a recorded mileage happened before about 80,000 miles, and 33% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 2 fires and 0 injuries to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.