Blue fluid is the new coolant cars use these days, not oil. Probably just over filled overflow or it was overheating?
https://www.ecstuning.com/b-genuine-bmw-parts/bmw-coolant-antifreeze-1-gallon/82141467704/
Sent from my iPhone using Tapatalk
https://www.ecstuning.com/b-genuine-bmw-parts/bmw-coolant-antifreeze-1-gallon/82141467704/
Sent from my iPhone using Tapatalk