BMW M550i xDrive

On most modern BMW models (with Hot V V8 engines like the N/S 63) the coolant tank that is supposed to last at least the lifetime of the vehicle, only lasts about 40,000 Miles before cracking. The main issue is that the tank sits over the engine, which when coolant leaks, it will leak into the injectors causing engine misfires. There is no warning to the issue until you have a low coolant, but at that point, the coolant has already dripped into your engine. Not only this but anti freeze can…

Throughout my ownership, I have adhered to BMW’s recommended maintenance schedule, including routine oil changes and inspections. At no point was I advised of any engine issues, oil leaks, or conditions that could potentially lead to catastrophic engine failure. Most recently, the vehicle had change oil svc. at BMW of White Plains on June 25, 2026, at 69,456 miles. On July 17, 2026, while driving on the Bronx River Parkway, I unexpectedly noticed signs indicating that the vehicle was leaking…

To: National Highway Traffic Safety Administration (NHTSA) Subject: Safety Complaint – 2018 BMW M550i Driver Assistance System I am filing a formal safety complaint regarding a dangerous malfunction of the driver assistance systems in my 2018 BMW M550i. These systems behave unpredictably and cannot be reliably disabled, creating an unsafe driving condition. The vehicle’s driver assistance features (including steering and braking interventions) activate or restrict themselves unexpectedly…

I’m getting a passenger restraint system malfunction message on my infotainment. Says: “Passenger restraint system limited. Increased risk of injury in case of a collision. Continue wearing safety belt.” This is the second time this has occurred on this specific vehicle. First time was in 2021 and was repaired. Now it came up again.

Passenger restrain system mail function

The front differential and rear drive train has been problematic and has failed in model years starting 2019. My car is a April 2020 car with 34,000 miles and has already failed. There are numerous cars that share the same V8 engine and drive train, has similar front differential failures at very low mileage. BMW USA seems to not car and address the issue after it being brought to their attention.

The guibo (flex disc) in the powertrain has multiple visible cracks, posing a safety risk due to its potential to disrupt power transmission to the wheels. This malfunction could impact vehicle control, particularly at higher speeds, thus putting passengers and other road users at risk. A certified BMW service center has confirmed the problem, with BMW technicians recommending a replacement; however, both the dealer and BMW have declined to cover it under warranty. Although there were no…

Passenger restrained seatbelt signal. There is bulletin in google: SIB 72 04 17. There are recalls for this vehicle but dealer want accept it.

In the last 8 months, I have experienced 3 blowouts on the same side of the car. The tires were Continental Procontact SSR 245/40R19. In each instance, the sidewall failed and blew out. This has occurred on the highway as well as at low city speeds.

Excessive amounts of water accumulated at interior floors from the A/C drain unit. Water damage to all sensors and bad odor. Worried car may catch fire while driving. A/C will sometimes work.