2019 BMW X3 Engine Problems

I'm reporting a safety issue with BMW vehicles equipped with the B58TU engine, primarily 2019-2021 models. These vehicles have an oil pump with an internal plastic component that regulates oil pressure, and this part is fracturing in the field, causing sudden loss of oil pressure. The failure typically occurs during cold starts in low temperatures. When it fails, oil pressure becomes erratic or is lost entirely, often with little to no warning before engine damage or vehicle disablement. Warning signs, when present, include inability to measure oil level electronically, abnormal oil pressure, or sudden drivetrain malfunction warnings. These can rapidly progress to engine shutdown or severe damage from oil starvation. This creates a dangerous situation because the vehicle can become disabled without warning while driving or after startup. This is especially hazardous when cars become immobilized in traffic or during winter conditions when failures occur most frequently, leaving occupants exposed to freezing temperatures while awaiting assistance. Pump replacement requires extensive disassembly and commonly costs $6,000-$8,000, assuming no engine damage. A critical concern: owners cannot determine if their vehicle has the original plastic pump or the later metal revision. BMW's VIN-based parts lookup now shows updated components even when original plastic parts remain installed, and BMW has removed the original plastic part number from dealer networks entirely. Failures are reported across multiple production years, and the scope of affected vehicles remains unclear. Because this condition causes sudden vehicle disablement without adequate warning, especially in cold weather, I believe this warrants investigation as a potential safety-related defect.

While driving my BMW X3, the engine suddenly failed after the check-engine light came on, which followed several days of intermittent high-temperature warnings. Coolant levels had been consistently monitored, refilled, and topped up as needed, yet the temperature fluctuations persisted. Upon further inspection, the repair shop determined that coolant had been leaking internally into the engine due to a cooling system failure, causing overheating and warping of internal components. This created a serious safety hazard, as the vehicle began losing power while in motion, leaving me unable to safely accelerate or maintain speed in traffic and increasing the risk of a collision and a potential fire. This is a serious matter and BMW should assume responsibility for this. I bought the car assuming it was reliable but having to endure this cost out of pocket for an engineering failure is not okay.

Turbo coolant lines/ Oil filter housing failed I am reporting failure of the oil filter housing and turbo coolant lines on my 2019 BMW X3. These parts are leaking coolant due to defective plastic components and sealing surfaces, which causes sudden coolant loss and overheating risk while driving. This is a widespread issue affecting many BMW owners and has been documented in forums, service centers, and BMW technical bulletins. The failure poses a safety hazard, including potential engine failure at highway speeds, loss of power, and risk of breakdown or accident. BMW has not issued a recall or warranty extension, and consumers are being forced to pay out of pocket over $3,000 for what appears to be a systemic design flaw in the cooling system.

Despite replacing the water pump, coolant expansion tank, hoses, and other related cooling system components, and fully refilling and bleeding the coolant, the issue persisted. Even after these repairs, the engine continued to overheat and show coolant level fluctuations, indicating an underlying problem likely pressure buildup or head gasket failure that was not resolved by replacing standard cooling parts. Dealership has identified further problems and seem like a costly repair that I won’t be able to do out of pocket. BMW needs to address this issue immediately, engine stuttering and loss of sudden power on the high way is not safe!

2019 BMW X3 - Coolant warning has been going on for the last 6 months and I was refilling coolant every time it went off. I even had the car serviced and they refilled the coolant. Then I was driving the car the engine is overheating warning came on I pulled over. It cooled down. Car was fine but said it needed coolant. I added coolant and noticed it was leaking from multiple spots underneath the car. I had the car towed to a certified BMW mechanic. They did a diagnostic test and inspection and I was told the exhilarator water pump, coolant hose, coolant return line and oil filter house among a list of other things need to be replaced. The repair is estimated at $4700.00

The radiator hose system has now failed twice due to faulty hoses and connections.

2019 BMW X3 VIN # [XXX] Odometer - 70,000 miles Dealer - United BMW, 11458 Alpharetta HWY, Roswell GA 30075 I purchased my 2019 BMW x3 from United BMW in October 2022. The car had a little over 22K miles at the time or purchase. My vehicle suffered catastrophic engine failure on [XXX], just 48 hours after a BMW service technician topped off coolant in response to a warning light. The vehicle has been properly maintained, including repairs from United BWM Service and a BMW Certified independent mechanic. The engine failure occurred under normal driving conditions, rendering the engine inoperable. I have received a full diagnostic from BMW and they acknowledged that the independent mechanic was not at fault. Previous contact with BMW Consumer Relations and the United BMW service manager has not resolved the issue. The repair estimate from United is $40,000. Since I purchased my vehicle from United, they offered to reduce my repair cost to $33,000. I still owe $25,000 on this vehicle. Given the sudden failure shortly after BMW's service, this appears to be a serious reliability and potential safety defect. I have copies of my service records. Kindly advise. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine light diagnostic Crankcase Ventilation Hose Defective. There was a recall on this but not for my VIN #, why not I'm having the same issues a described in the recall.

On 7/3/25 took 2019 BMW X3 in for service & received a call that the Engine Mounts had collapsed and the repair would be $2,098.50 and to me a car with only 68K miles should not have this issue - first time in any car I've owned. The Service Advisor, Sheri Holtz of Century BMW, 2934 Laurens Road, Greenville SC informed us that this was a common issue but no recall currently. Went on to research and YouTube had information that this is a known issue and one of the top 10 problems with the BMW X3. Contacted BMW Client Care to seek reimbursement and claim was denied. Also sent a letter to BMW Customer Relations and no response. A 6 year old car should not have motor mounts collapsing and this is obviously an issue with BMW. Most consumers do not know how to report this complaint but if there is a way for you to search BMW dealers for how often this repair is happening, you will most likely find this is an issue.

motor mounts are now replaced every 30k miles the part fails. this is quality and safty hazard. this is not covered by BMW shame

Coolant is leaking and empty every week. Engine overheating warnings! I purchased this vehicle used on [XXX] from AutoFair in Manchester NH 1 week after purchase coolant warnings and engine light came on. Dealer is refusing responsibility and responding to multiple trips, phone calls and reports. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2019 BMW X3. The contact stated that the carbon monoxide detector sounded an alarm from the living room. The contact stated that her husband was unable to turn off the carbon monoxide alarm and called the Fire Department. The Fire Department arrived and determined that the vehicle, which had been parked in the garage of the residence, had experienced a thermal event in the engine compartment. The contact was advised that heat had generated carbon monoxide gas that had spread from the garage into an attic crawl space and then into the living room of the residence which had set off the carbon monoxide alarm. The contact stated that they were not able to drive the vehicle out of the garage due to the heat from the engine compartment. The contact stated that after the Fire Department had cleared the garage and residence of carbon monoxide, the contact was able to drive the vehicle out of the garage. The contact was advised by the Fire Department that the temperature in the engine compartment was getting dangerously hot and the vehicle was turned off. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact stated that the week prior to the failure, the vehicle was at a dealer for the water pump replacement. The manufacturer was not informed of the failure. The failure mileage was approximately 100,000.

The contact owns a 2019 BMW X3. The contact stated while driving 20 MPH, there was coolant leaking from the vehicle. The coolant level low message was displayed. The contact stated that the temperature gauge was raised to HOT. The vehicle was towed to the local dealer, where it was diagnosed that there was an engine cooling failure The vehicle was not repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was unknown.

Oil filter housing leaking coolant randomly out of the bottom of the vehicle, we were driving home from lunch and a refill coolant light come on. This caused us to have to randomly pull over quickly on the side of the road so the car wouldn't overheat.

The oil filter housing failed, which caused all of my coolant to leak out and the engine to overheat. My car had to be towed to a repair shop, as it would not hold any coolant. The repair bill for the new oil adapter housing unit, and related work (diagnostics, replacing engine oil and coolant) was a little over $2,300. Fortunately, I was near my home and on city streets when it occurred, or it could have been a real catastrophe.

The contact owns a 2019 BMW X3. The contact stated while driving approximately 40 MPH, the engine overheating warning light was illuminated. The contact stated that a message was displayed to “Stop Driving and Allow Engine to Cool Down”. The contact drove the vehicle to a local dealer, where it was diagnosed and determined that the water pump had failed and needed to be replaced. The vehicle was repaired. The manufacturer was not informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System) however, neither the VIN nor the model year was included. The failure mileage was approximately 80,000.

Per BMW's SIB (Service Bulletin) "SIB 17 03 20" "The O-rings that seal the quick disconnect coolant lines will not seal properly when outside temperatures are at or below -15 degrees C (5 degrees F) et. al BMW - DEFECT CODE: 1712144800 "Coolant hose including quick-release coupling not leak tight" on-going issue since 2019 on the BMW X3 Model G01

The contact owns a 2019 BMW X3. The contact stated that while driving 20 MPH on a main road, the message "Warning - Add Coolant' was displayed, and the temperature gauge indicated that the engine was overheating. The contact pulled over to the side of the road and allowed the engine to cool down. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine had failed due to coolant intrusion. The mechanic determined that the engine needed to be repaired. The vehicle was not repaired. The dealer was notified of the failure. The manufacturer was notified of the failure. The approximate failure mileage was 88,000.

The entire cooling system failed and RED WARNING light appeared leading to $6400 quote for repairs from BMW Seattle. BMW refused to do anything to make this right. They already know the thermostat is defective, so is the aux water pump, and the main water pump fails at only 60,000 miles. We could have been stranded on the side of the highway and these excessive repairs should all be covered under manufacturer extended warranty. We spoke to attorneys in Connecticut who will build a class action in this case. BMW wouldn't even meet us half way on repair costs and we were without our vehicle for months. It was an independent shop that finally told us the truth that the AUX Water Pumps are well known for failing on this vehicle causing extensive cooling system and engine repairs.

The contact owns a 2019 BMW X3. The contact stated that while performing a visual inspection of the vehicle, she noticed that the engine oil was leaking from the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the oil filter housing had failed. The vehicle was not repaired. The contact related the failure to TSB Number: 11-02-20. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was 100,000.