2019 BMW M5 Engine Problems

Engine coil and fuel injectors are bad. Injector 8 went bad, followed by 6&7. The next just went bad. Was told only so many available at dealership because of on going problems.

Despite following the manufacturer’s recommended maintenance schedule and having the car serviced at authorized BMW dealerships, I am facing an engine failure that BMW has quoted $44,000 to repair. BMW is only offering $4,000 towards this repair, leaving us with an overwhelming out-of-pocket expense. My insurance provider has informed me that they will not cover the cost of these repairs, placing us in a difficult financial position. Given the extensive history of issues and consistent maintenance of the vehicle, this situation is both unexpected and unacceptable. The car was even under the factory warranty when many of these issues were first reported. The vehicle has a documented history of engine-related issues, which are as follows: 1. February 25, 2023: The car exhibited a drivetrain malfunction warning and check engine light. The diagnosis revealed an issue with cylinder 6 fuel injector, which had an internal electrical fault. The fuel injector was...

The coolant reservoir tank leaks causing coolant to destroy the injectors on the engine below below which later causes engine failure. Nearly every BMW M5 owner I know has this issue. My coolant tank has been replaced twice in total 30,000 miles. BMW continues to provide faulty tanks. The last replacement was less than 1200 miles ago and the new tank is already leaking.

I actively participate in online F90 forums, and it seems like the coolant expansion tank seems to fail for almost all owners (both pre-LCI and LCI). In many cases, it also damages critical engine components underneath the tank and results in expensive repairs. Indeed, because BMW has failed to address this problem, the afternmarket already offers an aluminum billet coolant expansion tank, as well as a coolant expansion catch can that reroutes escaping coolant so as not to damage components located beneath the tank. While interacting with other owners, I learned that these failures continue to fail (including the recently revised part number) and there are several owners that needed the tank replaced multiple times (an owner I interacted with on bimmerpost today is on tank #8). Can you please advise as to BMW’s intent to properly and permanently fix this issue? It's a major design flaw impacting all F90...