You would think BMW would want owners of the latest iterations of the M5 sedan and M6 Coupe and Convertible models to have a blast with their cars – and you're right, it does, just only after it makes a fix to certain 2013MY vehicles sold in the States.
A safety bulletin issued by BMW of North America and released to the world for all to see by the folks over at the F10 M5 Post forums, reveals that the Bavarian automaker came to know of a problem with the S63TU 4.4-liter twin-turbocharged V8 engine found in the 2013MY M5 and M6 cars.
BMW says it discovered a serious issue with the eight-cylinder unit's oil pump on certain models fitted with the aforementioned engine.
More specifically, the automaker states that the affected pump "could experience a sudden loss of pressure which will result in severe engine damage", warning customers to "not drive the vehicle".
BMW said its Customer Relations division has already begun contacting U.S. owners of the affected M5s and M6s while it has also stopped deliveries of new vehicles with this engine until it fixes the problem.
Hat tip to Kris P.!