2019 BMW X3

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.

The emergency call system on the vehicle has failed and I am getting an error message. The service center at the dealership informed me that water ingress into the shark fin that houses the system caused the system to short and fail resulting in the need for a complete replacement of the system at a cost of $3100. BMW has issued a service bulletin (SIB 65 12 22-Roof Mounted Antenna Housing Seal Not Adhering) that states that the seal of the room-mounting antenna housing is separating from the vehicle. This will allow water ingress into the vehicle, possibly damaging components and equipment. With the correction of remove and reseal the roof-mounted antenna housing. During the service call, the technician confirmed this defect caused the issue. I contacted BMW and they refused to completely cover the repair stating it is not a safety issue. I disagree, I purchased the vehicle with advanced safety features. My wife travels with the car to rural areas and this feature is critical in her safety in the event of a crash. I feel BMW should cover the repair and that this issue is a safety concern for those who rely on an advanced safety calling system purchased with the car. In reviewing message boards, this seems to be an issue for many owners of BMW SUVs.

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

My 2019 x3 model has been leaking coolant from multiple places. I have already needed to replace the water pump at my mechanic and now there's an additional coolant leak and the radiator and radiator hoses are affected and may need replacement. My dealer has not reported this issue yet and no recall has been declared for my type of vehicle, but I cannot afford to fix this issue out of pocket and it's a manufacturer issue when making these materials for the car, no fault of the driver. This has now become an issue where my car is constantly leaking coolant and causing potential engine damage.

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.

Subject: Rear Differential Mount Failure and Driveshaft Breakage — Sudden Loss of Vehicle Control at Highway Speed Complaint Summary: While driving at highway speed, I experienced a sudden and extremely loud bang from the rear of the vehicle. Immediately afterward, I lost complete control of the rear end, accompanied by violent clanking and grinding noises from the driveline area. The gearbox then stalled, leaving the vehicle disabled in the middle of the highway. Upon inspection, it was determined that a rear differential mounting bolt had sheared, causing the differential to shift violently out of position. This sudden movement resulted in the driveshaft breaking, which further destabilized the vehicle and led to a severe and immediate loss of control. This failure occurred without warning and created an extremely dangerous situation. The sudden loss of drivetrain integrity at highway speed placed both myself and nearby motorists at serious risk of a crash. A component as critical as a differential mount or driveshaft should not fail under normal operating conditions. This incident strongly indicates a serious design or manufacturing defect affecting the vehicle’s powertrain and structural safety. Requested Action: I urge the NHTSA to investigate rear differential mounting and driveshaft failures on this vehicle model. Such failures can lead to catastrophic loss of control, and immediate attention is necessary to prevent future incidents and ensure driver safety.

The contact owns a 2019 BMW X3. The contact stated that while driving at an undisclosed speed, the instrument was flickering on and off. The contact stated that the failure was persistent. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 60,000.

The contact owns a 2019 BMW X3. The contact stated that while driving at an undisclosed speed, the instrument panel was flickering on and off. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 80,000.