2020 Bmw X3 Engine Problems
17 owner-reported engine complaints from NHTSA data
Data sourced from NHTSA public database. For informational purposes only. Always consult a qualified mechanic.
Engine Recalls (1)
ENGINE
BMW of North America, LLC (BMW) is recalling certain 2020 M340i, M340i xDrive, 540i, 540i xDrive, X3 M40i, 2020-2021 X4 M40i, 745Le xDrive, 2019-2021 Z4 M40i, and 2020-2021 Toyota Supra vehicles. During engine start, the engine management software may cause loss of braking assist. Full mechanical braking (without assist) remains available.
Fix: Dealers will update the engine management software, free of charge. Owner notification letters were mailed on September 17, 2021. Owners may contact BMW customer service at 1-800-525-7417.
Owner Complaints (17)
Your car is subject to a safety recall issued in September 2025 for a starter issue that could cause a fire. Six months later, BMW still hasn't made the fix available and is advising you to park your car outside to prevent it from catching fire near your home. This is a serious safety issue that requires immediate attention from the manufacturer.
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Your BMW X3 may have a faulty oil pump with an internal plastic component that can crack without warning, especially during cold starts in winter weather. When this happens, your engine loses oil pressure and lubrication, which can cause sudden engine shutdown or severe damage while you're driving. You might notice warning messages about oil level or pressure problems before the engine fails, but sometimes there's little warning at all. Fixing this requires replacing the oil pump, which involves extensive engine disassembly and typically costs $6,000–$8,000 or more.
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Your BMW X3 may have a faulty oil pump with an internal plastic part that can crack without warning, causing your engine to lose oil pressure suddenly. When this happens, your engine may stall while driving or shortly after startup—especially in cold weather—leaving you stranded without much warning. Fixing this requires replacing the entire oil pump, which typically costs $6,000–$8,000 or more if engine damage has occurred.
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Your BMW X3 may have an oil pump with an internal plastic component that can crack, especially during cold starts in winter weather. When this happens, your engine loses oil pressure without much warning, which can cause your engine to shut down or suffer severe damage from lack of lubrication. This could leave you stranded in traffic or freezing temperatures. Fixing this requires replacing the oil pump, which typically costs $6,000–$8,000 and involves taking apart much of the engine.
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Your 2020 BMW X3 with a B58TU engine may have an oil pump with an internal plastic component that can crack without warning, especially during cold starts in freezing weather. When this happens, your engine loses oil pressure suddenly, which can cause the engine to shut down while you're driving or leave you stranded without prior warning. Fixing this problem requires replacing the entire oil pump, which involves extensive engine disassembly and typically costs $6,000–$8,000 or more.
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Your engine's oil pump contains a plastic internal part that BMW has identified as prone to becoming brittle and breaking. If this part fails while you're driving, your engine could suddenly lose oil pressure and seize or stall, potentially causing you to lose power steering and braking assist at highway speeds. BMW has already released a reinforced metal replacement part and a software update to reduce stress on the original plastic component. The fix involves replacing the oil pump with the updated metal version.
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While driving at 45 mph, your car displayed a warning message saying the engine oil pressure was low and told you to pull over immediately to avoid engine failure. You checked the oil and found nothing wrong, but a mechanic discovered the oil pump was defective—it was made with plastic instead of the more durable metal material BMW later switched to. BMW refused to cover the repair because you didn't buy the car from a BMW dealer, so you'll need to pay out of pocket to replace the oil pump with the updated metal version.
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Around 70,000-80,000 miles, your oil filter housing started leaking coolant fluid, which could cause your engine to overheat if not caught early. BMW dealerships are replacing the housing with the same plastic part that failed, rather than upgrading to aluminum, and a service bulletin from 2020 warned about similar failures in your engine type, though BMW hasn't issued a recall. The repair costs $4,000 at a dealership or around $2,500 at independent shops, but mechanics recommend using an aluminum replacement part to prevent the problem from happening again.
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Your car has motorized air shutters on the grille that control airflow to the radiator. These shutters are failing prematurely, causing your engine to overheat and triggering a check engine light due to emissions issues. BMW acknowledged this problem in earlier model years and issued a warranty, but did not fix the underlying design issue in your 2020 model year—and BMW is refusing to cover the repair costs. Fixing this typically requires replacing the active air shutter assembly.
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Your car's lower radiator air flaps aren't opening and closing properly, which triggered a check engine light. The dealership identified this as the problem, and you mention it's a known issue affecting multiple BMW models that has led to recalls on some of them. Fixing this typically involves replacing or repairing the radiator blind actuator and clearing the engine fault code.
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Beginning Oct 1, 2025. The cars drivetrain warning came on intermittently until mechanics correctly diagnosed the issue. Thermostat valve failed to shut off properly causing the car to overheat. This has been an issue and recall already, just did not include my vin. Now it has happened to me at the cost of 2K and under 45k miles. heat management module had to be replaced due to the danger of overheating and complete car shut down. I am turning this into BMW as well.
The lower radiator blinds had to be replace and was causing the engineer light to come. I feel that this is a big problem with the BMW and should be cover under warranty.
I purchased the vehicle used on December 2, 2023. The vehicle randomly and intermittently exhibits a check engine light in normal driving conditions. The vehicle was inspected prior to sale, and engine oil was replaced prior to sale. The check engine light turns on and off sporadically but seems to turn on when the vehicle switches from electric to combustion engine.
The contact owned a 2020 BMW X3. The contact stated after parking her vehicle at her residence, the vehicle caught fire around the engine independently. The fire department extinguished the fire. A fire and police report were filed. The vehicle was not drivable. The contact stated no one was injured nor sought medical attention. The insurance company deemed the vehicle a total loss. The vehicle was not diagnosed. A dealer was not contacted. The manufacturer had not been informed of the failure. The failure mileage was approximately 11,700. The consumer stated the police and fire reports have been requested and waiting to receive the reports.
BMW recalled our car twice to replace the hybrid battery. Purchase in late July 2020; first recall about August 2020; second recall about September 2021. BMW replaced the hybrid battery as part of the second recall. Since then the vehicle check engine light has intermittently illuminated. The service department has confirmed faults in the hybrid drive system but has not identified the cause of the faults nor identified a fix. The car is not drivable and has been in the shop for the last 6 weeks with no end in sight. This car has been in the BMW service center for issues relating to the hybrid battery drive system on at least 4 occasions encompassing more than 120 cumulative days over the past 1.6 years that we have owned it. BMW reportedly is now replacing sensors (e.g., throwing parts at the car) in hopes of correcting the fault rather than identifying the source of the fault. I understand from an employee at the BMW service center that he is aware that this dealership has SEVERAL X3 hybrid vehicles with issues identical to our car; and that other dealerships also have hybrid X3 vehicles with faults in the hybrid systems.
The contact owned a 2020 BMW X3. The contact stated the vehicle was stationary at a parking lot, when the front passenger informed her that there was smoke coming from under the passenger’s side hood. The contact stated a bystander attempted to extinguish the fire with a fire extinguisher but failed. The fire department arrived within 10 minutes and was able to extinguish the fire. The contact stated no one was injured nor was medical attention sought. A fire report was filed. A police officer arrived at the location and filed a police report. The vehicle was not drivable. The vehicle was towed to towing lot. The insurance company deemed the vehicle a total loss. The contact called the local dealer and left a voicemail. The manufacturer had not been informed of the failure. The failure mileage was approximately 7,000.
TL* THE CONTACT OWNS A 2020 BMW X3. THE CONTACT STATED THAT WHILE THE VEHICLE WAS PARKED AND UNATTENDED, IT SPONTANEOUSLY CAUGHT FIRE. ADDITIONALLY, A LINCOLN MKZ PARKED ADJACENT TO THE VEHICLE CAUGHT FIRE. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. THERE WERE NO REPORTED INJURIES. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO AN INDEPENDENT LOT. THE LOCAL DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 8,000.