2020 BMW X5 Power Train

My steering was what I felt as an affected problem. I was subsequently stuck while out with my one year old in the cold 10/31/2024. Eventually the car started again but I had what felt like steering issues (i.e. dragging/shuttering) thereafter. I was told that there were no issues aside from the power steering which completely failed and was replaced. Not until 1 year later when I insisted that the issue continued did the dealership give me an idea of what it could be despite them knowing about the SIB the entire time. There were warning lamps that came on I'm just not sure if any of those lights were the actual undiagnosed issue pertaiing to my transfer case needing to be completely replaced. Either way the dealersihp sandbaged me and only diagnosed the transfer case replacement after I was 1 month out of warranty 11/2025 quoting me with a $10,552.19. repair cost.

The contact owns a 2020 BMW X5. The contact stated that while the vehicle was parked, there was fluid and lubricant on the ground underneath the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer where it was diagnosed with a detached front differential shaft bearing. In addition, the contact was informed that the front differential shaft bearing caused excessive play in the propeller shaft. The contact was informed that the front differential shaft bearing needed to be replaced. The vehicle was not repaired. The contact stated that the failure was a known failure with the vehicle. The contact stated that the vehicle was serviced by the dealer seven weeks prior to the failure. 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 unknown.

I purchased a used and well serviced, one owner, BMW 2020 X5 on [XXX] from Acura of West Chester, PA. After driving the vehicle for a week the car began jerking and shuttering forward. I live in Philadelphia where space is limited and pedestrians, children included walk close to cars at stop lights and stop signs. I almost had an accident while just parking the car due of the shuttering and additionally the car unexpectedly jerked towards a pedestrian when I was stopped at a stop sign. I researched and discovered that this is a known issue concerning my year and model due to a manufacturer error when the vehicle was assembled. The incorrect oil was place into the transfer case which ultimately causes damage leading to the unsafe driving condition that I am currently experiencing. There are no warning or check engine lights to make the driver aware of the issue. Below is the direct from BMW's notice on the issue, SIB 27 02 20. To my surprise, there was never a recall to fix this issue for the make and models affected . I am asking for the NHTSA to investigate and issue are recall for repair and replacement of the transfer case that was damaged prior to consumer purchase for the models outlined in the service bulletin. BMW replaces the oil as the first level repair at the cost of the owner which seems to only be temporary. Some owners say the problem goes away and other owners the problem returns requiring replacement as the true option. I would like for BMW to recall and replace to the vehicle safe to drive. SIB 27 02 20 JERKING OR SHUDDERING FROM THE DRIVELINE (XDRIVE TRANSFER CASE ATX13 SITUATION There is a jerking or shuddering during either or both of the following: Cornering or accelerating from low speeds Driving with low to medium loads There are no warning lights or Check Control messages. CAUSE Unevenly worn or incorrect fitment tires are installed on the vehicle, or the factory-filled transfer case oil does not meet BMW specifications. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Transfer case issue which is well known across different BMW vehicles. While driving, reversing , slow parking maneuvers there is a very evident jerking sensation coming from the drivetrain. As if gears within the transfer case are slipping. Potentially dangerous while driving because the transfer case distributes power to the rear axle Issue has been confirmed by a BMW mechanic No warning lights

Car indicating drivetrain malfunction and BMW has a service bulletin for the described issue which is to replace the transfer case yet the dealer service center has tried to say it was the radiator blinds and it was not, now saying its spark plugs and ignition coils yet there aren’t any fault codes for it. The car has lost power while on the freeway and could be potentially dangerous since it happens while driving. Plenty of other vehicle owners reporting the same issue yet bmw not being held accountable.

How does a known manufacturing defect ( or the factory-filled transfer case oil does not meet BMW specifications.) Not become a safety concern. The wheels have intermittent power from the transfer case. My car showed the concern at 55k miles and the warranty company made me go through another 12 months of the shuddering issue before replacing. When moving from winter to all season tire it became more noticeable. When setting off from a slope my power loss was even greater causing the front wheels to slip from the shuddering power train. This possess a greater risk on loose paving.